Triglyceride and chylomicron "stacking" 10. 十一月 2009 William Davis (24) Continuing the comments started in Grazing is for cattle, here's an interesting study from the Oxford Center for Diabetes, Endocrinology and Metabolism.Volunteers were fed a test meal breakfast of Rice Krispies, a banana, and a chocolate milkshake (76.4 grams carbohydrates, 51.9 grams fat, 12.2 grams protein). Lunch was served 5 hours later and consisted of a cheese sandwich and a second chocolate milkshake 43.4 grams carbohydrates, 49.6 grams fat, 24.0 grams protein). Frequent blood samples were then assessed over the day. (Don't try this at home: These are obviously very dangerous foods!)Here's the pattern of triglycerides that was observed (1st dotted vertical line = breakfast, 2nd dotted vertical line = lunch):Note that triglycerides only begin to decline 3-4 hours after breakfast, only to peak higher after lunch.Here's the pattern observed for chylomicrons, the "granddaddy" of lipoproteins that derives from intestinal absorption of fatty acids:Both graphs from Heath RB et al Am J Phyiol Endocrinol Metab 2006.With chylomicrons, note a similar pattern to triglycerides: Chylomicrons begin to decline at 3-4 hours, only to peak higher after lunch. This is the first Toggle navigation Home Blog Home Archive Join Now Log in More on the American Heart Association Check Mark program 11. June 2007 William Davis (3) Take a look at the list of foods on the American Heart Association's (AHA) Check Mark endorsement program (below). After I saw the list, I was convinced either that the people who designed the program are either startlingly ignorant, or the AHA simply does this for money.Many of these foods have nothing to do with health, heart or otherwise. In fact, many of these foods are prominent culprits that contribute to the American epidemic of obesity. There are cured meats with sodium nitrite (a potent cause of colon cancer). Some of these companies have been accused of unhealthy food manufacturing practices. Tyson Foods, for instance, has been in court many times defending their brutal factory farm practices and were the focus of a federal investigation for paying bribe money to USDA Secretary, Mike Espy. (Espy was acquitted but two Tyson executives were convicted, only to be later pardoned by then President Bill Clinton.)This is a smarmy list to be included on. Though there are some rare healthy exceptions on the list, from the Track Your Plaque viewpoint, this is a list of shame, foods that have no place in a genuinely heart healthy nutrition program. 8th Continent, LLC8th Continent Fat Free Premium Original Soymilk8th Continent Fat Free Premium Vanilla Soymilk8th Continent Light Chocolate Soymilk8th Continent Light Original Soymilk8th Continent Light Vanilla Soymilk8th Continent Premium Chocolate Soymilk8th Continent Premium Original Soymilk8th Continent Premium Vanilla SoymilkAmerican Italian Pasta CompanyGolden Grain Mission Whole Grain Penne RigateGolden Grain Mission Whole Grain RotiniGolden Grain Mission Whole Grain SpaghettiHeartland Whole Grain PenneHeartland Whole Grain RotiniHeartland Whole Grain SpaghettiHeartland Whole Wheat Angel HairHeartland Whole Wheat Elbow MacaroniHeartland Whole Wheat PenneHeartland Whole Wheat RotiniHeartland Whole Wheat SpaghettiMueller's Whole Grain PenneMueller's Whole Grain RotiniMueller's Whole Grain SpaghettiAtalanta CorporationCelebrity 99% Fat Free Premium Imported Healthy HamBeefmaster Cattlemen, L.P.Nolan Ryan's All Natue also have data examining the use of pure omega-3 fatty acids in capsule (not intact fish) form, including studies like GISSI Prevenzione. Nonetheless, Dr. Grimes reminds us that both vitamin D and omega-3 fatty acids from fish oil play crucial roles in mental health and other aspects of health, and that it's the combination that may account for the extravagant health effects previously ascribed only to omega-3s. Why does fish oil reduce triglycerides? 2. 十一月 2009 William Davis (9) Beyond its ability to slash risk for cardiovascular events, omega-3 fatty acids from fish oil also reduce triglycerides. There's no remaining question that omega-3s do this quite effectively. After all, the FDA approved prescription fish oil, Lovaza, to treat a condition called familial hypertriglyceridemia, an inherited condition in which very high triglycerides in the 100s or 1000s of milligrams typically develop. The omega-3 fraction of fatty acids are unique for their triglyceride-reducing property. No other fraction of fatty acids, such as omega-6 or saturated, can match the triglyceride-reducing effect of omega-3s. But why does fish oil reduce triglycerides? First of all, what are triglycerides? As their name suggests, triglycerides consist of three ("tri-") fatty acids lined up along a glycerol (sugar) "backbone." Triglycerides are the form in which most fatty acids occur in the bloodstream, liver, and other organs. (Fatty acids, like omega-3, omega-6, mono- or polyunsaturated, or saturated, rarely occur as free fatty acids unbound to glycerol.) In various lipoproteins in the blood, like LDL, VLDL, and HDL, fatty acids occur as triglycerides. Of all lipoproteins, chylomicrons (the large particle formed through intestinal absorption of fatty acids and transported to the liver via the lymph system) and VLDL (very low-density lipoprotein, very low-density because they are mostly fat and little protein) particles are richest in triglycerides. Thus, we would expect that omega-3s exert their triglyceride-reducing effect via reductions in either chylomicrons or VLDL. Indeed, that seems to be the case. The emerging evidence suggests that omega-3 fatty acids from fish oil reduce triglycerides through:--Reduced VLDL production by the liver (Harris 1989)--Accelerating chylomicron and VLDL elimination from the blood --Activation of peroxisome proliferator-activated receptor gamma (PPAR-gamma)--Omega-3s ramp up the cellular equipment used to convert fatty acids to energy (oxidation) (Gani 2008)Combine omega-3 fatty acids from fish oil with wheat elimination and you have an extremely potent means of reducing triglycerides. Read a previous Heart Scan Blog post here to read how a patient reduced triglycerides 93.5% from 3100 mg/dl to 210 mg/dl in just a few weeks using fish oil and wheat elimination. Fish oil makes you happy: Psychological distress and omega-3 index 30. 十月 2009 William Davis (24) For another perspective on omega-3 blood levels, here's an interesting study in northern Quebec Inuits. Traditionally, Inuits consumed large quantities of omega-3-rich seal, fish, caribou, and whale, even eating the fat. However, like the rest of the world, modern Inuits have increased consumption of store-bought foods, largely processed carbohydrates. Along with this trend has emerged more heart disease, diabetes, and depression. A group from Laval University and University of Guelph, both in Canada, examined the relationship of plasma EPA + DHA levels and measures of psychological distress. This group had previously shown that Inuits older than 50 years had twice the plasma omega-3 levels (11.5%) compared to those younger than 50 years (6.5%), reflecting the shift away from the traditional diet. Psychological distress was measured with The Psychological Distress Index Santé-Québec Survey (PDISQS-14): the higher the score, the greater the psychological distress. (In the graphs, tertile 1 is least distressed; tertile 5 is most distressed. Sorry about the small chart graphic--click on the graphic to make it bigger.)From Lucas M et al 2009 (http://www.nutrasource.ca/NDI/Assets/Articles/Plasma%20omega-3%20and%20psychological%20distress%20among%20Nunavik%20Inuit.pdf)"Our main finding was that women in the second and third tertiles of EPA+DHA concentrations in plasma PLs [phospholipids] had a 3 times lower risk of having a high-level PD [psychological distress] score than women in the lowest tertile."While the relationship is stronger for women, you can see that, the higher the EPA + DHA plasma level, the lower the likelihood of psychological distress. Interestingly, the tertile with the greatest distress and lowest EPA + DHA levels had a plasma level of 7.0-7.5%--far higher than average Americans. (Plasma levels of EPA + DHA were used in this study, which tend to reflect more recent omega-3 intake than the more stable and slower-to-change RBC Omega-3 Index that we use. Plasma levels also tend to run about 10-20% lower than RBC levels.)Of course, there's more to psychological distress than omega-3 blood levels. After all, eating fish or taking fish oil capsules won't make money worries go away or heal an unhappy marriage. But it is one variable that can be easily and safely remedied. Hospitals are a hell of a place to get sick 29. 十月 2009 William Davis (19) I answered a page from a hospital nurse recently one evening while having dinner with the family. RN: "This is Lonnie. I'm a nurse at _____ Hospital. I've got one of your patients here, Mrs. Carole Simpson. She's here for a knee replacement with Dr. Johnson. She says she's taking 12,000 units of vitamin D every day. That can't be right! So I'm calling to verify." WD: "That's right. We gauge patients' vitamin D needs by blood levels of vitamin D. Carole has had perfect levels of vitamin D on that dose." RN: "The pharmacist says he can replace it with a 50,000 unit tablet."WD: "Well, go ahead while Carole's in the hospital. I'll just put her back on the real stuff when she leaves." RN: "But the pharmacist says this is better and she won't have to take so many capsules. She takes six 2,000 unit capsules a day." WD: "The 50,000 units you and the pharmacist are talking about is vitamin D2, or ergocalciferol, a non-human form. Carole is taking vitamin D3, or cholecalciferol, the human form. The last time I checked, Carole was human." RN: (Long pause.) Can we just give her the 50,000 unit tablet? WD: "Yes, you can. But you actually don't need to. In fact, it probably won't hurt anything to just hold the vitamin D altogether for the 3 days she's in the hospital, since the half-life of vitamin D is about 8 weeks. Her blood level will barely change by just holding it for 3 days, then resuming when she's discharged." RN: (Another long pause.) Uh, okay. Can we just give her the 50,000 units?"WD: "Yes, you can. No harm will be done. It's simply a less effective form. To be honest, once Carole leaves the hospital, I will just put her back on the vitamin D that she was taking." RN: "Dr. Johnson was worried that it might make her bleed during surgery. Shouldn't we just stop it?" WD: "No. Vitamin D has no effect on blood coagulation. So there's no concern about perioperative bleeding."RN: "The pharmacist said the 50,000 unit tablet was better, also, because it's the prescription form, not an over-the-counter form." WD: "I can only tell you that Carole has had perfect blood levels on the over-the-counter preparation she was taking. It works just fine."RN: "Okay. I guess we''ll just give her the 50,000 unit tablet."From the alarm it raises trying to administer nutritional supplements in a hospital, you'd think that Osama Bin Laden had been spotted on the premises. I laugh about this every time it happens: A patient gets hospitalized for whatever reason and the hospital staff see the supplement list with vitamin D, fish oil at high doses, iodine, etc. and they panic. They tell the patient about bleeding, cancer, and death, issue stern warnings about how unreliable and dangerous nutritional supplements can be. My view is the exact opposite: Nutritional supplements are a wonderful, incredibly varied, and effective array of substances that, when used properly, can provide all manner of benefits. While there are selected instances in which nutritional supplements do, indeed, have interactions with treatments provided in hospitals (e.g., Valerian root and general anesthesia), the vast majority of supplements have none. Does fish oil cause blood thinning? 27. 十月 2009 William Davis (20) Omega-3 fatty acids from fish oil have the capacity to "thin the blood." In reality, omega-3s exert a mild platelet-blocking effect (platelet activation and "clumping" are part of clot formation), while also inhibiting arachidonic acid formation and thromboxane. But can fish oil cause excessive bleeding? This question comes up frequently in the office, particularly when my colleagues see the doses of fish oil we use for cardiovascular protection. "Why so much fish oil? That's too much blood thinning!" The most recent addition to the conversation comes from a Philadelphia experience reported in the American Journal of Cardiology:Comparison of bleeding complications with omega-3 fatty acids + aspirin + clopidogrel--versus--aspirin + clopidogrel in patients with cardiovascular disease.(Watson et al; Am J Cardiol 2009 Oct 15;104(8):1052-4). All 364 subjects in the study took aspirin and Plavix (a platelet-inhibiting drug), mostly for coronary disease. Mean dose aspirin = 161 mg/day; mean dose Plavix = 75 mg/day. 182 of the subjects were also taking fish oil, mean dose 3000 mg with unspecified omega-3 content. During nearly 3 years of observation, there was no excess of bleeding events in the group taking fish oil. (In fact, the group not taking fish oil had more bleeding events, though the difference fell short of achieving statistical significance.) Thus, 3000 mg per day of fish oil appeared to exert no observable increase in risk for bleeding. This is consistent with several other studies, including that including Coumadin (warfarin), with no increased bleeding risk when fish oil is added. Rather than causing blood thinning, I prefer to think that omega-3 fatty acids from fish oil restore protection from abnormal clotting. Taking omega-3 fatty acids from fish oil simply restores a normal level of omega-3 fatty acids in the blood sufficient to strike a healthy balance between blood "thinning" and healthy blood clotting. Heart Scan Blog readers take impressive doses of omega-3s 24. 十月 2009 William Davis (28) Here are the results from the latest Heart Scan Blog poll:What is your dose of omega-3 fatty acids, EPA + DHA, from fish oil? (Add up the total content of EPA + DHA per capsules; multiply times number of capsules.)The 479 respondents answered:Less than 1000 mg per day 65 (13%) 1000-1999 mg per day 145 (30%) 2000-2999 mg per day 98 (20%) 3000-3999 mg per day 79 (16%) 4000-4999 mg per day 33 (6%) 5000-5999 mg per day 14 (2%) 6000 mg per day or more 45 (9%)The poll did not discriminate between who has heart disease, who does not; who is taking omega-3 fatty acids for high triglycerides or for reduction of lipoprotein(a) (which requires high doses), or other indications. So variation is to be expected. We can say that nearly all respondents are likely receiving sufficient omega-3s to impact cardiovascular risk, since the benefits begin just by consuming fish twice per month. I am especially impressed at the proportion of respondents (53%) who take at least 2000 mg per day of EPA + DHA. It's clear that people are really embracing the notion that omega-3 fatty acids pack a real wallop of health benefits. Because different people in different situations and lipid/lipoprotein patterns have different omega-3 needs, there is really no "right" or "wrong" dose of omega-3 fatty acids. However, there are several factors that enter into knowing your ideal omega-3 intake:--Higher triglycerides require higher doses--Lipoprotein(a) can respond to higher doses--Having coronary or carotid plaque means you desire a "therapeutic" dose of omega-3s, not just a "preventive" doseTime is a factor, also: The longer you take omega-3s, the higher your blood levels go. You can accelerate the replacement of non-omega-3s with higher doses of omega-3s. But too much is not good either. Some participants in Track Your Plaque, for instance, have experimented with very high doses of EPA + DHA in the 9000-10,000 per day range and witnessed dramatic increases in LDL. Much of the uncertainty about dosing will also be cleared up as we get more experience with the Omega-3 RBC Index, i.e, the proportion of fatty acids in red blood cells that are omega-3s. We are currently aiming for an Omega-3 Index of 10%, given the heart attack reductions observed at this level. << 之前的文章 之后的文章 >> 之后的文章12...343536373839404142...123124之前的文章 l 99% Fat Free Boneless Skinless Chicken BreastsPilgrim's Pride CorporationEat Well Stay Healthy Chicken Breast SaladEat Well Stay Healthy Fresh Boneless Skinless Chicken Breasts with Rib Meat (15% Chicken Broth)Eat Well Stay Healthy Fresh Boneless Skinless Chicken Thin Sliced Breasts with Rib Meat (15% Chicken Broth)Eat Well Stay Healthy Fresh Chicken Breast Tenderloins (15% Chicken Broth)Eat Well Stay Healthy Fully Cooked Rotisserie Skinless Chicken Split Breasts - Garden HerbGold Kist Farms 100% Natural 99% Fat Free Boneless Skinless Chicken BreastGold Kist Farms All Natural 99% Fat Free Boneless Skinless BreastsGold Kist Farms/Kirkland Signature All Natural 99% Fat Free Boneless Skinless BreastsHyVee/Country Pride 97% Fat Free Boneless Skinless Chicken Breast Fillets with Rib Meat (15% Chicken Broth)HyVee/Country Pride 97% Fat Free Skinless Split Chicken Breasts with Ribs (12% Chicken Broth)HyVee/Country Pride 99% Fat Free Boneless Skinless Chicken Breast Tenderloins (15% Chicken Broth)Meijer Fresh Boneless Skinless Chicken Breast Tenderloins (15% Marination)Meijer Fresh Boneless Skinless Chicken Breasts with Rib Meat (15% Marination)Pilgrim's Pride Eat Well Stay Healthy Grilled Chicken Breast FilletsPilgrim's Pride Eat Well Stay Healthy Grilled Chicken Breast StripsPilgrim's Pride Eat Well Stay Healthy Italian Style Grilled Chicken Breast FilletsPilgrim's Pride Eat Well Stay Healthy Key Lime Flavor Chicken Breast FilletsPilgrim's Pride Eat Well Stay Healthy Kids Fully Cooked Breaded Chicken NuggetsPilgrim's Pride Eat Well Stay Healthy Kids Fully Cooked Breaded Popcorn ChickenPilgrim's Pride Eat Well Stay Healthy Lemon Herb Chicken Breast FilletsPilgrim's Pride Eat Well Stay Healthy Savory Chicken Breast FilletsPilgrim's Pride Eat Well Stay Healthy Szechwan Chicken Breast TenderloinsPilgrim's Pride Fresh Boneless Skinless Chicken Breasts with Rib Meat Individually Wrapped (15% Chicken Broth)Pilgrim's Pride Fresh Chicken 100% Natural Boneless Skinless Breasts with Rib MeatPilgrim's Pride Fresh Chicken 100% Natural Boneless Skinless Breasts with Rib Meat (15% Chicken Broth)Pilgrim's Pride Fresh Chicken 100% Natural Breast TenderloinsPilgrim's Pride Fresh Chicken 100% Natural Breast Tenderloins (15% Chicken Broth)Pilgrim's Pride Fresh Chicken 100% Natural Skinless Split Breasts with RibsPilgrim's Pride Fresh Chicken 100% Natural Skinless Split Breasts with Ribs (12% Chicken Broth)Pilgrim's Pride Fresh Chicken Breast Tenderloins Individually Wrapped (15% Chicken Broth)Pilgrim's Pride Individually Frozen Fully Trimmed 99% Fat Free All Natural Boneless Skinless Chicken Breasts (15% Chicken Broth)Schnucks 99% Fat Free Chicken Breast TenderloinsSchnucks 99% Fat Free Skinless Chicken Breast FilletsSchnucks 99% Fat Free Thin Sliced Skinless Chicken Breast FilletsQuaker Oats Company/Tropicana Products, Inc., TheCrystal Wedding OatsOld-Fashioned Quaker OatsQuaker Cinnamon LifeQuaker Essentials Oat BranQuaker Essentials Oatmeal Squares - Brown SugarQuaker Essentials Oatmeal Squares - CinnamonQuaker Essentials Toasted Oatmeal - Brown SugarQuaker Essentials Toasted Oatmeal - Honey NutQuaker Honey Graham LifeQuaker Instant Oatmeal - Apple CrispQuaker Instant Oatmeal - Apples & CinnamonQuaker Instant Oatmeal - Cinnamon & SpiceQuaker Instant Oatmeal - Cinnamon RollQuaker Instant Oatmeal - Flavor VarietyQuaker Instant Oatmeal - Maple & Brown SugarQuaker Instant Oatmeal - Raisins & SpiceQuaker Instant Oatmeal - Regular FlavorQuaker Instant Oatmeal Bakery Favorites Variety Pack (Apple Crisp/Cinnamon Roll/Banana Bread)Quaker Instant Oatmeal Crunch - Apples & CinnamonQuaker Instant Oatmeal Crunch - Magicolor CinnamonQuaker Instant Oatmeal Crunch - Maple & Brown SugarQuaker Instant Oatmeal Crunch - Mixed BerryQuaker Instant Oatmeal Lower Sugar - Apples & CinnamonQuaker LifeQuaker Life Chocolate Oat CrunchQuaker MultiGrain Hot CerealQuaker Oat Bran Hot CerealQuaker Take Heart Instant Oatmeal - BlueberryQuaker Take Heart Instant Oatmeal - Golden MapleQuick 1 Minute Quaker OatsTropicana Pure Premium Calcium + Vitamin D No Pulp Orange JuiceTropicana Pure Premium Fiber Some Pulp Orange JuiceTropicana Pure Premium Golden No Pulp Grapefruit JuiceTropicana Pure Premium Grovestand Calcium + Vitamin D Lots of Pulp Orange JuiceTropicana Pure Premium Grovestand Lots of Pulp Orange JuiceTropicana Pure Premium Healthy Heart No Pulp Orange Juice with Omega 3Tropicana Pure Premium Homestyle Some Pulp Orange JuiceTropicana Pure Premium Light 'n Healthy Calcium No Pulp Orange JuiceTropicana Pure Premium Light 'n Healthy Calcium No Pulp Orange JuiceTropicana Pure Premium Low Acid No Pulp Orange JuiceTropicana Pure Premium Original No Pulp Orange JuiceTropicana Pure Premium Ruby Red Some Pulp Grapefruit JuiceR.A.B. 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More on the American Heart Association Check Mark program 11. June 2007 William Davis (3) Take a look at the list of foods on the American Heart Association's (AHA) Check Mark endorsement program (below). After I saw the list, I was convinced either that the people who designed the program are either startlingly ignorant, or the AHA simply does this for money.Many of these foods have nothing to do with health, heart or otherwise. In fact, many of these foods are prominent culprits that contribute to the American epidemic of obesity. There are cured meats with sodium nitrite (a potent cause of colon cancer). Some of these companies have been accused of unhealthy food manufacturing practices. Tyson Foods, for instance, has been in court many times defending their brutal factory farm practices and were the focus of a federal investigation for paying bribe money to USDA Secretary, Mike Espy. (Espy was acquitted but two Tyson executives were convicted, only to be later pardoned by then President Bill Clinton.)This is a smarmy list to be included on. Though there are some rare healthy exceptions on the list, from the Track Your Plaque viewpoint, this is a list of shame, foods that have no place in a genuinely heart healthy nutrition program. 8th Continent, LLC8th Continent Fat Free Premium Original Soymilk8th Continent Fat Free Premium Vanilla Soymilk8th Continent Light Chocolate Soymilk8th Continent Light Original Soymilk8th Continent Light Vanilla Soymilk8th Continent Premium Chocolate Soymilk8th Continent Premium Original Soymilk8th Continent Premium Vanilla SoymilkAmerican Italian Pasta CompanyGolden Grain Mission Whole Grain Penne RigateGolden Grain Mission Whole Grain RotiniGolden Grain Mission Whole Grain SpaghettiHeartland Whole Grain PenneHeartland Whole Grain RotiniHeartland Whole Grain SpaghettiHeartland Whole Wheat Angel HairHeartland Whole Wheat Elbow MacaroniHeartland Whole Wheat PenneHeartland Whole Wheat RotiniHeartland Whole Wheat SpaghettiMueller's Whole Grain PenneMueller's Whole Grain RotiniMueller's Whole Grain SpaghettiAtalanta CorporationCelebrity 99% Fat Free Premium Imported Healthy HamBeefmaster Cattlemen, L.P.Nolan Ryan's All Natue also have data examining the use of pure omega-3 fatty acids in capsule (not intact fish) form, including studies like GISSI Prevenzione. Nonetheless, Dr. Grimes reminds us that both vitamin D and omega-3 fatty acids from fish oil play crucial roles in mental health and other aspects of health, and that it's the combination that may account for the extravagant health effects previously ascribed only to omega-3s.
Why does fish oil reduce triglycerides? 2. 十一月 2009 William Davis (9) Beyond its ability to slash risk for cardiovascular events, omega-3 fatty acids from fish oil also reduce triglycerides. There's no remaining question that omega-3s do this quite effectively. After all, the FDA approved prescription fish oil, Lovaza, to treat a condition called familial hypertriglyceridemia, an inherited condition in which very high triglycerides in the 100s or 1000s of milligrams typically develop. The omega-3 fraction of fatty acids are unique for their triglyceride-reducing property. No other fraction of fatty acids, such as omega-6 or saturated, can match the triglyceride-reducing effect of omega-3s. But why does fish oil reduce triglycerides? First of all, what are triglycerides? As their name suggests, triglycerides consist of three ("tri-") fatty acids lined up along a glycerol (sugar) "backbone." Triglycerides are the form in which most fatty acids occur in the bloodstream, liver, and other organs. (Fatty acids, like omega-3, omega-6, mono- or polyunsaturated, or saturated, rarely occur as free fatty acids unbound to glycerol.) In various lipoproteins in the blood, like LDL, VLDL, and HDL, fatty acids occur as triglycerides. Of all lipoproteins, chylomicrons (the large particle formed through intestinal absorption of fatty acids and transported to the liver via the lymph system) and VLDL (very low-density lipoprotein, very low-density because they are mostly fat and little protein) particles are richest in triglycerides. Thus, we would expect that omega-3s exert their triglyceride-reducing effect via reductions in either chylomicrons or VLDL. Indeed, that seems to be the case. The emerging evidence suggests that omega-3 fatty acids from fish oil reduce triglycerides through:--Reduced VLDL production by the liver (Harris 1989)--Accelerating chylomicron and VLDL elimination from the blood --Activation of peroxisome proliferator-activated receptor gamma (PPAR-gamma)--Omega-3s ramp up the cellular equipment used to convert fatty acids to energy (oxidation) (Gani 2008)Combine omega-3 fatty acids from fish oil with wheat elimination and you have an extremely potent means of reducing triglycerides. Read a previous Heart Scan Blog post here to read how a patient reduced triglycerides 93.5% from 3100 mg/dl to 210 mg/dl in just a few weeks using fish oil and wheat elimination.
Fish oil makes you happy: Psychological distress and omega-3 index 30. 十月 2009 William Davis (24) For another perspective on omega-3 blood levels, here's an interesting study in northern Quebec Inuits. Traditionally, Inuits consumed large quantities of omega-3-rich seal, fish, caribou, and whale, even eating the fat. However, like the rest of the world, modern Inuits have increased consumption of store-bought foods, largely processed carbohydrates. Along with this trend has emerged more heart disease, diabetes, and depression. A group from Laval University and University of Guelph, both in Canada, examined the relationship of plasma EPA + DHA levels and measures of psychological distress. This group had previously shown that Inuits older than 50 years had twice the plasma omega-3 levels (11.5%) compared to those younger than 50 years (6.5%), reflecting the shift away from the traditional diet. Psychological distress was measured with The Psychological Distress Index Santé-Québec Survey (PDISQS-14): the higher the score, the greater the psychological distress. (In the graphs, tertile 1 is least distressed; tertile 5 is most distressed. Sorry about the small chart graphic--click on the graphic to make it bigger.)From Lucas M et al 2009 (http://www.nutrasource.ca/NDI/Assets/Articles/Plasma%20omega-3%20and%20psychological%20distress%20among%20Nunavik%20Inuit.pdf)"Our main finding was that women in the second and third tertiles of EPA+DHA concentrations in plasma PLs [phospholipids] had a 3 times lower risk of having a high-level PD [psychological distress] score than women in the lowest tertile."While the relationship is stronger for women, you can see that, the higher the EPA + DHA plasma level, the lower the likelihood of psychological distress. Interestingly, the tertile with the greatest distress and lowest EPA + DHA levels had a plasma level of 7.0-7.5%--far higher than average Americans. (Plasma levels of EPA + DHA were used in this study, which tend to reflect more recent omega-3 intake than the more stable and slower-to-change RBC Omega-3 Index that we use. Plasma levels also tend to run about 10-20% lower than RBC levels.)Of course, there's more to psychological distress than omega-3 blood levels. After all, eating fish or taking fish oil capsules won't make money worries go away or heal an unhappy marriage. But it is one variable that can be easily and safely remedied.
Hospitals are a hell of a place to get sick 29. 十月 2009 William Davis (19) I answered a page from a hospital nurse recently one evening while having dinner with the family. RN: "This is Lonnie. I'm a nurse at _____ Hospital. I've got one of your patients here, Mrs. Carole Simpson. She's here for a knee replacement with Dr. Johnson. She says she's taking 12,000 units of vitamin D every day. That can't be right! So I'm calling to verify." WD: "That's right. We gauge patients' vitamin D needs by blood levels of vitamin D. Carole has had perfect levels of vitamin D on that dose." RN: "The pharmacist says he can replace it with a 50,000 unit tablet."WD: "Well, go ahead while Carole's in the hospital. I'll just put her back on the real stuff when she leaves." RN: "But the pharmacist says this is better and she won't have to take so many capsules. She takes six 2,000 unit capsules a day." WD: "The 50,000 units you and the pharmacist are talking about is vitamin D2, or ergocalciferol, a non-human form. Carole is taking vitamin D3, or cholecalciferol, the human form. The last time I checked, Carole was human." RN: (Long pause.) Can we just give her the 50,000 unit tablet? WD: "Yes, you can. But you actually don't need to. In fact, it probably won't hurt anything to just hold the vitamin D altogether for the 3 days she's in the hospital, since the half-life of vitamin D is about 8 weeks. Her blood level will barely change by just holding it for 3 days, then resuming when she's discharged." RN: (Another long pause.) Uh, okay. Can we just give her the 50,000 units?"WD: "Yes, you can. No harm will be done. It's simply a less effective form. To be honest, once Carole leaves the hospital, I will just put her back on the vitamin D that she was taking." RN: "Dr. Johnson was worried that it might make her bleed during surgery. Shouldn't we just stop it?" WD: "No. Vitamin D has no effect on blood coagulation. So there's no concern about perioperative bleeding."RN: "The pharmacist said the 50,000 unit tablet was better, also, because it's the prescription form, not an over-the-counter form." WD: "I can only tell you that Carole has had perfect blood levels on the over-the-counter preparation she was taking. It works just fine."RN: "Okay. I guess we''ll just give her the 50,000 unit tablet."From the alarm it raises trying to administer nutritional supplements in a hospital, you'd think that Osama Bin Laden had been spotted on the premises. I laugh about this every time it happens: A patient gets hospitalized for whatever reason and the hospital staff see the supplement list with vitamin D, fish oil at high doses, iodine, etc. and they panic. They tell the patient about bleeding, cancer, and death, issue stern warnings about how unreliable and dangerous nutritional supplements can be. My view is the exact opposite: Nutritional supplements are a wonderful, incredibly varied, and effective array of substances that, when used properly, can provide all manner of benefits. While there are selected instances in which nutritional supplements do, indeed, have interactions with treatments provided in hospitals (e.g., Valerian root and general anesthesia), the vast majority of supplements have none.
Does fish oil cause blood thinning? 27. 十月 2009 William Davis (20) Omega-3 fatty acids from fish oil have the capacity to "thin the blood." In reality, omega-3s exert a mild platelet-blocking effect (platelet activation and "clumping" are part of clot formation), while also inhibiting arachidonic acid formation and thromboxane. But can fish oil cause excessive bleeding? This question comes up frequently in the office, particularly when my colleagues see the doses of fish oil we use for cardiovascular protection. "Why so much fish oil? That's too much blood thinning!" The most recent addition to the conversation comes from a Philadelphia experience reported in the American Journal of Cardiology:Comparison of bleeding complications with omega-3 fatty acids + aspirin + clopidogrel--versus--aspirin + clopidogrel in patients with cardiovascular disease.(Watson et al; Am J Cardiol 2009 Oct 15;104(8):1052-4). All 364 subjects in the study took aspirin and Plavix (a platelet-inhibiting drug), mostly for coronary disease. Mean dose aspirin = 161 mg/day; mean dose Plavix = 75 mg/day. 182 of the subjects were also taking fish oil, mean dose 3000 mg with unspecified omega-3 content. During nearly 3 years of observation, there was no excess of bleeding events in the group taking fish oil. (In fact, the group not taking fish oil had more bleeding events, though the difference fell short of achieving statistical significance.) Thus, 3000 mg per day of fish oil appeared to exert no observable increase in risk for bleeding. This is consistent with several other studies, including that including Coumadin (warfarin), with no increased bleeding risk when fish oil is added. Rather than causing blood thinning, I prefer to think that omega-3 fatty acids from fish oil restore protection from abnormal clotting. Taking omega-3 fatty acids from fish oil simply restores a normal level of omega-3 fatty acids in the blood sufficient to strike a healthy balance between blood "thinning" and healthy blood clotting.
Heart Scan Blog readers take impressive doses of omega-3s 24. 十月 2009 William Davis (28) Here are the results from the latest Heart Scan Blog poll:What is your dose of omega-3 fatty acids, EPA + DHA, from fish oil? (Add up the total content of EPA + DHA per capsules; multiply times number of capsules.)The 479 respondents answered:Less than 1000 mg per day 65 (13%) 1000-1999 mg per day 145 (30%) 2000-2999 mg per day 98 (20%) 3000-3999 mg per day 79 (16%) 4000-4999 mg per day 33 (6%) 5000-5999 mg per day 14 (2%) 6000 mg per day or more 45 (9%)The poll did not discriminate between who has heart disease, who does not; who is taking omega-3 fatty acids for high triglycerides or for reduction of lipoprotein(a) (which requires high doses), or other indications. So variation is to be expected. We can say that nearly all respondents are likely receiving sufficient omega-3s to impact cardiovascular risk, since the benefits begin just by consuming fish twice per month. I am especially impressed at the proportion of respondents (53%) who take at least 2000 mg per day of EPA + DHA. It's clear that people are really embracing the notion that omega-3 fatty acids pack a real wallop of health benefits. Because different people in different situations and lipid/lipoprotein patterns have different omega-3 needs, there is really no "right" or "wrong" dose of omega-3 fatty acids. However, there are several factors that enter into knowing your ideal omega-3 intake:--Higher triglycerides require higher doses--Lipoprotein(a) can respond to higher doses--Having coronary or carotid plaque means you desire a "therapeutic" dose of omega-3s, not just a "preventive" doseTime is a factor, also: The longer you take omega-3s, the higher your blood levels go. You can accelerate the replacement of non-omega-3s with higher doses of omega-3s. But too much is not good either. Some participants in Track Your Plaque, for instance, have experimented with very high doses of EPA + DHA in the 9000-10,000 per day range and witnessed dramatic increases in LDL. Much of the uncertainty about dosing will also be cleared up as we get more experience with the Omega-3 RBC Index, i.e, the proportion of fatty acids in red blood cells that are omega-3s. We are currently aiming for an Omega-3 Index of 10%, given the heart attack reductions observed at this level.
More on the American Heart Association 9. June 2007 William Davis (1) I'm very troubled by the American Heart Association's (AHA) willingness to lend its logo and stamp of approval to a multitude of garbage foods like Cocoa Puffs and Berry Kix cereals.So I contacted the AHA and spoke to the manager of the Food Certification Program, Ms. Linda Rupp. Ms. Rupp proved very helpful in helping me to understand.I originally called her to find out just how many products were turned down. In view of 768 products on the approved list, I wondered how many had been rejected to generate this "select" group.Unfortunately, she said that the number of products rejected was not tracked, though she did intimate that it was not a lot. Sometimes, she added, a rejected product will undergo a few "improvements" to help it achieve the criteria necessary for AHA approval.What exactly is considered in an application for the Food Certification Program?A food must have 1)total fat 3.0 grams or less, 2) saturated fat 1.0 gram or less, 3) 20 grams or less cholesterol, 4) 480 mg or less sodium, all per serving.She also pointed out that, given the fact that a food as useless and lacking in health qualitites as jelly beans could meet this criteria, the AHA employs a special "Jelly Bean Rule" that stipulates that 10% of the Daily Value of 6 nutrients (e.g., fiber, vitamins A and C, etc.) must also be contained in a serving.So those are the startlingly lax requirements to gain the privilege of affixing the AHA Heart Check Mark on your product and informing the public that your box of Cocoa Puffs, Cookie Crisp cereal, or Berry Kix is "heart healthy."There is an epidemic of obesity in the U.S. I don't believe that the AHA endorsement helps. In fact, I believe that it has been a contributor to obesity.Pardon me while I eat this bag of M&M's for my heart.
Exercise and blood pressure 7. June 2007 William Davis (0) Stan did everything right. He followed the Track Your Plaque "Rule of 60". He was slender, had run a marathon a few months earlier, in fact. He included fish oil at therapeutic doses. He replenished vitamin D to a blood level of 57 ng/ml 25-OH-vitamin D3. Though ambitious and hard-working, he was a generally happy, optimistic person. Yet his CT heart scan score increased 28% in one year, from a starting score of 379 to 485. What did he do wrong? Well, Stan did nothing wrong. But I suggested to him that one "hole" in his program could be exercise-induced high blood pressure. I've witnessed this effect many times. Blood pressure normal or "borderline" high while seated and relaxed, sky-high with exercise. So we put Stan on a treadmill. Starting blood pressure: 123/76. Blood pressure with exericse (13 mets): 220/78--sky high. That's why Stan's heart scan score went up. A good pressure with this level of exercise: 150/70, but certainly no higher than 170/80. If blood pressure is high with exercise, it's probably high with emotional upset, anxiety, being in a hurry, etc., also, all the irritations and pressures of life. We'll see in future how much of a role reducing Stan's blood pressure will play in gaining better control over his heart scan score. A practical difficulty will be in assessing the adequacy of blood pressure control in Stan, since its full potential only becomes evident with exerise. It means that future blood pressure assessments are more likely to be on a treadmill. It would also explain why Stan's thoracic aorta was mildly enlarged and his aortic valve was mildly leaky when I met him, both potential consequences of intermittent high blood pressure.
Cheese and vitamin K2 6. June 2007 William Davis (5) If you've been following the Track Your Plaque conversation, you know that, contrary to prevailing opinion among many cardiologists, there is an emerging notion that coronary calcification is an active process, a true part of the disease. Vitamin D3 is an important aspect of this question. So is vitamin K2. Not to be confused with K1 that plays a role in blood coagulation, K2 has an important role in calcium metabolism. Thus, vitmain K2 deficiency is related to osteoporosis and to coronary calcification. Getting K2, like getting D, is difficult from food sources. The choices for K2 sources includes:--Natto--generally, an impalatable choice. I've had it and it was intolerably gooey and weird-tasting. It is, nonetheless, the most concentrated food source of K2.--Pate--Though liver products have the potential for containing many other unhealthy things, like pesticide residues, since the liver acts as a filter for the blood.--Fermented cheeses--Since K2 is a product of fermentation of cheese, as it is in Natto. For years, we've advised people to avoid or minimize cheese because of saturated fat or cholesterol content. I think that there's reason to re-think this advice based on the emerging data. How can you tell the difference between fermented and non-fermented cheese? First, look for the holes in the cheese. The holes are the remnants of gas pockets created during fermentation. Second, look for the word "cultures" on the label, meaning organisms for fermentation were added. If "processed cheese" is anywhere on the label, this is a dairy product that has been chemically coagulated and is not fermented. Fermented cheeses are generally "gourmet" cheeses, not eaten a pound at a time on a pizza, but meant to be eaten in small portions. How much fermented cheese is necessary for its presumed inhibitory benefits on coronary calcification and osteoporsis? Are some fermented cheeses better than others? These issues remain unsettled. Stay tuned.
Vitamin D disappointment ahead 5. June 2007 William Davis (9) Anyone following the Track Your Plaque conversation know that we are rabid fans of normalizing blood vitamin D blood levels (25-OH-vitamin D3).A wonderful report on vitamin D was aired this morning on the NBC Today show. The interviewed guests did a good job of describing the health effects of vitamin D, thought the focus was on some new data on the use of vitamin D for breast and prostate cancer. I learned that shiitake mushrooms have some vitamin D--I didn't know that! (They contain 260 units per 4 mushrooms.) Unfortunately, the closing comments from the guests, among whom was nutritionist and author, Joy Bauer,MS, was that you should get vitamin D from your multivitamin or your calcium with vit D. That is absolutely wrong. When you check blood levels of vitamin D, as we do in everybody we see, you quickly learn what works and what doesn't. Vitamin D in multivitamins is very poorly absorbed, if at all. Likewise, about 90% of the D in most calcium preparations is not absorbed. The vast majority of tablet or powder preparations, such as those in calcium tablets, are not absorbed to any significant extent. Take all you want and you remain vit D-deficient with osteoporosis, growing coronary plaque, low HDL, and exposed to risk for prostate and colon cancer. If you take vitamin D in supplement form, it must--MUST--be in an oil-based capsule. The tablets are simply much too poorly and erratically absorbed to be reliable. There's nothing more frustrating to take, for instance, 4000 units of vitamin D in tablet form, only to have a blood level of 12 ng/ml--severe deficiency. Take the same 4000 unit dose in capsule form and blood level skyrockets to 58 ng/ml. And it's no more expensive.One other thing: If you want to waste time and money, take the prescription vitamin D prescribed by many doctors. This is vitamin D2, also known as "ergocalciferol". Why use the synthetic vitamin D2 when D3 is the form your body needs? Because the D2 is patent-protectable and profitable to the drug manufacturer, similar to using Premarin (horse estrogens) when human preparations would suffice--or be superior. I saw a woman today taking 50,000 of prescription D2 once per week. Her blood level of 25-OH-vitamin D3? 17 ng/ml--severe deficiency. Don't waste your time with this garbage.
In search of truth 4. June 2007 William Davis (2) I am continually amazed at the amount of time and energy we all expend in the search for truth. Rely on your hospital and you will be steered towards strategies that, at worst, aim to increase your use of hospital procedures. At best, they steer you towards physicians who are often under their employ. How about your doctor? This is a source of immense frustration. Doctors remain interested in treating the catastrophic illness. They remain lukewarm towards prevention and self-empowerment. Thus, supplements are dangerous, everything requires a doctor's endorsement. Drug companies? That's like relying on a used car salesman for truth. Exagerration, slick talk, and plain deception might be better descriptions of what you can count on from the drug manufacturers. The internet? Perhaps, if you're selective. WebMD? An obvious voice-box for the drug industry. Just look at the proliferation of drugs ads that accompany each report. In fact, the majority (80%) of WebMD's revenues come from drug manufacturers. The profit motive has created a mountain of good information. It has also created a sea of mis-information, all created to provide personal financial enrichment. But I continue to be optimistic that the internet will also become a forum for truth, particularly through its capacity for networked interaction among participants. As our collective wisdom permits us to more effectively separate the wheat from the chaff in looking for the truth, I believe that we will zigzag towards a system of healthcare that is self-empowering, self-directed, and resorts to hospitals and procedures only in the most dire circumstances, saving billions of dollars every year.
American Heart Association stamp of approval 2. June 2007 William Davis (8) The American Heart Association (AHA) has a program called the Heart-Check Mark, an "approval" process that permits a food manufacturer to affix the AHA logo and stamp of approval on various food products. A company simply makes application to the AHA. The application and product details are reviewed and then approved or turned down. To date, 106 companies have obtained the AHA stamp of approval on 768 products. What kinds of products are on the approved list? Here's a sample:--Honey Bunches of Oats--Kellogg's Frosted Mini-Wheats --Cocoa Puffs cereal--Cookie Crisp cereal ("The great taste of chocolate chips in every bite!")There are 764 others. If you doubt this, just go to the store and take a look at the product containers. What the heck is going on here? Most of us with any judgment know that these products are pure sugar. They may contain "no more" than 15-40 grams sugar per sugar, but the principal products--corn, wheat, fructose--mean that these products are, in effect, nearly pure sugar. Yet they carry the AHA stamp of approval. What do products like this cause? It's a long list but the major effects include:--Obesity--Diabetes--Drop in HDL--Rise in triglycerides--Small LDL particles--Heightened inflammation (i.e., C-reactive protein)--Mental cloudinessNeed I go on? Why are products like these and many others deserving of the AHA heart-check approval? Because they lack high fat and saturated fat (3.0 grams, 1.0 grams respectively, by AHA criteria). In other words, just lacking these ingredients means that, to the AHA, they qualify as "heart healthy." By that same line of reasoning, many candy bars are "heart healthy", as are many cookies and cupcakes. What's the reason behind this extraordinary absurdity? Is the AHA stupid? There may be many reasons, but one very suspicious fact becomes immediately obvious when you realize these endorsements product a substantial revenue source for the AHA, since companies must pay for the right to use the heart-check approval mark. Also, just look at the major contributors (millions of dollars) to the AHA: ConAgra, General Mills, Kraft, etc.) You get the picture.Does this make the AHA evil? Not necessarily. But it seriously erodes credibility. it also should make you very leery of any advice that comes from such an agency that is reluctant to bite the food manufacturer hands that feed it.In my view, we simply cannot rely on the AHA for genuine, unbiased heart health advice.
"Your heart scan score means nothing" 1. June 2007 William Davis (7) Charles was visibly confused. He'd gotten his CT heart scan after hearing one of the local scan center's ads on the radio. His score 2773, obviously in the 99th percentile for any age. "Do you think the score means anything? My primary doctor said that it was meaningless because it was all in the deep wall of the artery. He said that it has nothing to do with risk for heart attack. As long as I feel good, he says don't do anything."What exactly did his doctor mean, in the "deep wall of the artery"?What the doctor is referring to is the fact that some people with a long history (many years) of diabetes or kidney failure (also for many years) tend to develop calcium deposits in the media, or muscular layer of arteries. The media is the tissue thin layer just below the intima, the most inner layer of arteries that we usually associate with atherosclerotic plaque and the layer that is most prone to calcium accumulation that we score on heart scans.Aging, generally into your late 70s, 80s, and onwards, also increases the likelihood of medial calcification. Lastly, longstanding deficiency of vitamin D encourages medial calcification.Is there any way to distinguish intimal vs medial calcification on a heart scan? No, there is not. Having read many thousands of CT heart scans, I can tell you that there is no practical way in 2007 to tell the difference. Then how did this doctor "know" that Charles' calcium was "deep walled" or medial? Simple: He didn't. This was yet another example of ignorance based on old thinking. Unfortunately, he did Charles a serious disservice by dismissing his heart scan score that predicted a 25% per year risk for heart attack. Interestingly, whether calcium is intimal as in atherosclerotic plaque, or medial, both are strongly associated with risk for heart attack. In other words, if calcium is confined to the intima, heart disease risk is present. If calcium is limited to the media, risk is still present. In all practicality, the only difference we make of the intima vs. media argument (that is, when the distinction has been made by some other means like intracoronary ultrasound, the test that is truly necessary to distinguish the two patterns) is that medial calcification may be more powerfully related to vitamin D deficiency. Thus, someone with heavy medial calcification may require closer attention to maintaining a perfect year-round blood level of 25-OH-vitamin D3. But that's the only practical difference.
Vitamin D toxicity? 30. May 2007 William Davis (3) "My primary care doctor said to stop the vitamin D because it's toxic. So I stopped it and I just take a multivitamin. He said that a multivitamin and two glasses of milk a day was all I needed."So proclaimed Eleanor to me. This happens around once every week by doctors frightened of the vitamin D. So I reminded Eleanor that, before starting vitamin D supplementation, her blood level of 25-OH-vitamin D3 had been 17 ng/ml--severe deficiency. On 4000 units per day (oil-based gelcap), her blood level had been 37 ng/ml--still deficient, below the desirable range of 50-60 ng/ml. That's the dose Eleanor's doctor had declared "toxic."When exactly does deficiency develop? There's not full agreement on this, but Dr. Michael Holick of Boston University, among the most experienced and insightful authorities on vitamin D, states that toxicity is more likely when blood levels exceed 150 ng/ml (Nutr Clin Pract. 2007 Jun;22(3):297-304).In other words, Eleanor and her doctor should not be concerned with toxicity, but with the persistent levels of deficiency she is suffering. Some authorities call the behavior of vitamin D "bi-phasic": Deficiency is toxic, excessive levels are toxic. We're really just trying to achieve a middle ground in vitamin D levels that are above deficiency but below toxicity. In reality, deficiency is exceptionally common. In fact, it's the rule around here (northern U.S.), with >95% of everybody we check severely deficient in winter, mildly-moderately deficient in summer. Very few people approach normal levels year round without supplementation. Toxicity, on the other hand, is exceedingly rare. I have seen it once in a woman who was taking a toxic dose of 50,000 units a day on the instructions of her (mis-guided) doctor. Thankfully, no ill-effects developed from this little "experiment."So, it's not toxicity that is the overwhelmingly common worry, but deficiency, severe and sustained.
Non-profit hospitals 30. May 2007 William Davis (0) Take a look at your local hospital and you're likely to notice several curious things:1) It is likely non-profit, meaning it enjoys a non-profit status with the Internal Revenue Service and enjoys the tax benefits of not paying taxes on profits. This provides an advantage to tax-protected hospitals. 70% or more of hospitals in the U.S. are "non-profit."2) Non-profit or no, many hospitals operate under the guise of a religious affiliation, e.g., St. Mary's Hospital, Trinity Hospital, All Saints', Jewish Hospital, etc. 3) Executives in non-profit hospitals can make capitalistic salaries. One CEO of a Milwaukee hospital took home $3.7 million dollars in salary last year. That's not including the very substantial perks and business interests in the spin-off businesses the hospital owns, including pharmacies, drug and medical device disitributors, even a venture capital division. "Non-profit" does not have to mean that executives within the operation can't benefit handsomely. That same hospital system spends over $10 million dollars in a year in local marketing for TV ads, print advertising, etc. Ads are slick and professionally produced. Make no bones about it: These are "non-profit" for tax purposes only . They are for-profit in every other sense of the phrase, including rich rewards for the insiders.Guess how those fat executive salaries and large marketing budgets are paid for? That's right: the 12-inch incision in your chest; the four stents, defibrillator, and repeated nuclear stress tests; the revolving door of hospitalization after hospitalization that typifies the "heart patient" experience. See the hospital for what it is: In the 21st century, it is no longer a charitable operation worthy of your volunteer time and donations. It is a business no different than Home Depot, IBM, or--Enron. Yes, they do perform needed services, as well. But the perverse equation that often determines who needs hospitalization and who doesn't, who needs a heart procedure and who doesn't, is not always based on necessity but on financial return. Just ask the CEO.