How important is high blood pressure? 24. June 2006 William Davis (0) Control of blood pressure is crucial for coronary plaque control and stopping your heart scan score from increasing. Dr. Mehmet Oz (of Oprah fame and a cardiac transplant surgeon at Columbia University) made graphic point of this on the ABC TV news show, 20/20, last evening on an episode called "Our Bodies: Myths, Lies, and Straight Talk". (See a summary on the ABC News 20/20 website at http://abcnews.go.com/2020/story?id=2109291&page=1) Although I believe he somewhat overstated the case for hypertension (proclaiming "If you're going to remember one number, if you're going to focus and fixate on one number in your entire health profile, it better be your blood pressure"), he made the point that a blood pressure of 115/75 is what you should have for optimal health. I couldn't agree more. Unfortunately, the old advice that desirable blood is 140/90 or less is absolutely wrong. At this level, we see flagrant increases in heart scan scores. We also progressive enlargement of the thoracic aorta, the large vessel that leaves the heart and branches to provide the major arteries of the body. Growth of the aorta to an aneurysm is also common at these formerly acceptable blood pressure. (The diameter of your aorta in the chest is an easily obtainable measure on your CT heart scan.) The blood pressure you need for halting and reversing plaque growth on your heart scan is indeed 115/75 or less. (Not so low, however, that you're lightheaded.) This is the blood pressure that you were meant to have evolutionarily. It's also the blood pressure that helps tremendously in keeping your aorta from enlarging. Watch for an upcoming exhaustive report on blood pressure and its plaque-raising effects and how to reduce it using nutritional strategies on the www.cureality.com membership website.
Is your doctor in cahoots with the hospital? 21. June 2006 William Davis (0) I got a call from a doctor about a patient we've seen in past."I've got Tricia in the office. She's been having some kind of chest and abdominal pain. I think it's esophageal reflux, but just to be safe I'm sending her to the hospital."I advised this physician that, given Tricia's low heart scan score, she was unlikely to be having a coronary "event" like heart attack or unstable symptoms. It wasn't impossible, but just highly unlikely. As the patient was without symptoms at the moment and had driven herself to his office, I offered to perform a stress test immediately. (Though stress tests are of limited usefulness in people without symptoms, they can be useful provocative maneuvers in people with symptoms of uncertain significance.) The doctor declined. Tricia was, after all, in his office and he was responsible for any decisions despite any objections I voiced. Well, Tricia was directed by her doctor to go to a local hospital, though one with an especially notorious reputation for putting virtually anyone they can get their hands on through as many procedures as possible. As you might guess, this doctor was closely associated with this hospital. He and his colleagues obtain incentives (or are penalized) if they do not generate revenue-producing procedures for the hospital. So, guess what? Tricia ended up with several procedures, all of which yielded nothing--except $30,000 in revenues from Tricia's insurance company. I harp on this deplorable state of affairs because it is utterly, painfully, and shamefully TRUE. Just look at the hospital and you'd better brace yourself for a series of tests that could cost you the equivalent of a nice 3 bedroom home. If they were truly necessary after the failure of preventive and other simple efforts, fine. But, all too often, they are driven by profit motives. Could I have stopped this somehow from occurring? After all, Tricia was reasonably aware of the way we do things around here. I fear that even this failed to serve Tricia well. But I remain hopeful that, as we build broader awareness of these issues, that more and more people and physicians will stand up and refuse to tolerate the status quo.
Where is the Track Your Plaque program going? 21. June 2006 William Davis (1) I spend a lot of time worrying about how people can be helped to navigate through this program. Take, for instance, the man in rural Texas who, while traveling in Dallas, got a heart scan on a whim. His score was 990. When he took the report back to his doctor, he got a smirk--and that's all. When he came to the Track Your Plaque program, he lacked a physician advocate to help him. Or the woman from Florida who sought opinions from two reputable cardiologists for her heart scan score of 377. Both advised her that she needed a heart catheterization--despite her lack of symptoms, her 5-day-a-week exercise program, and normal stress test. She also lacks a physician advocate who acts on her behalf, helping her achieve success, rather than just churning her for money from hospital procedures.For people like this and for others, I see the Track Your Plaque program evolving in several directions:1) An online clinic--You enter and we take your "hand" and lead you step by step through the process, not only at the beginning, but over the months and years. This would help clear up some of the confusion and zigzags that some people experience trying to navigate through the program. 2) Develop physician and non-physician partners--The woman in Florida, for instance, could be referred to a doctor nearby who understands the program and is able to assist her. At present, this is virtually impossible because of the bias towards heart procedures, drugs as the sole treatment for heart disease risk, and the superficial physician-patient relationship. The majority of practicing physicians just don't understand the program despite the fact that it is based on sound clinical and experimental data. But it will in time.Looking back, we've come a long way. I remember first having patients undergo heart scans 10 years ago. My colleagues laughed or called it "silly". The general public didn't know what they meant. Now we're talking about how to broadcast the most powerful heart disease prevention program available in the world to a larger audience, but making it easier and more accessible. Mass media like Oprah's two hour-long spots helped, but we need to make the next leap. Not just identifying hidden heart disease to feed the hungry cardiovascular hospital procedure monster, but to educate/inform/empower the public on what to do with the scan once they've had it.
Who cares about triglycerides? 19. June 2006 William Davis (0) Walter's triglycerides were 231 mg. His LDL cholesterol was "favorable" at 111 mg, HDL likewise at 49 mg."Everything looks good," his doctor declared. "Do you think the triglycerides are okay, too?" Walter asked. "Well, the guidelines do say that triglycerides should be less than 150, but I believe you're close enough. Anyway, triglycerides don't really cause heart disease."When I met Walter, I made several comments. First of all, in light of his heart scan score of 713, none of his numbers--HDL, LDL, or triglycerides-- were acceptable. But the triglycerides were glaringly and terribly too high. Why? What exactly are triglycerides? Triglycerides are a basic fat particle that, though they do not cause heart disease directly, trigger the formation of an array of abnormal lipoprotein particles in the blood that are among the most potent causes of heart disease known.These abnormal lipoprotein particles include small LDL, VLDL, and IDL (intermediate-density lipoprotein--a really bad pattern). Excess triglycerides also cause HDL to drop. They also cause a distortion of HDL structure, causing the particles to become abnormally small. Small HDL is also useless HDL, unable to provide the protection that HDL is designed to do. So Walter's elevated triglycerides are, in reality, a substantial red flag for an entire panel of abnormal particles that contribute to the growth of his coronary plaque. So, if you get this kind of commentary on your triglycerides, ask for another opinion. (Track Your Plaque Members: Also see Triglycerides: Mother of meddlesome particles at http://www.cureality.com/library/fl_dp002triglycerides.asp.)
Total cholesterol and heart scans 19. June 2006 William Davis (0) Andy was fearful of heart disease in his life. At age 52, he'd already had four CT heart scans--one each year on or near his birthday. Yet, when I looked at Andy's scans, his scores had been increasing 20-24% per year. Each and every score was greater by 20% or more over the previous. So I asked Andy what steps he had taken to stop this relentless progression. "Well, I've always been real health conscious. But ever since my first scan, I really started sticking to a healthy diet, exercising nearly every day, and I take a bunch of supplements.""What did your doctor advise?" I asked. "Well, Dr. ---- said that nothing needed to be done, since my total cholesterol was always below 200."Men's Health magazine's fabulous story about the folly of using total cholesterol to gauge heart disease risk. Aaaauuuggghhh!! Wrong! This man was, in fact, at rapidly escalating risk for heart attack. This rate of growth simply can't continue forever without igniting this bomb. A total cholesterol below 200 is meaningless, as Andy's increasing coronary plaque proved. For instance, you can have a total cholesterol of 165 mg but with an HDL cholesterol of 27 mg. This would constitute very high risk for heart disease despite the low total cholesterol. The low HDL pattern is among the most common reasons for a misleading total cholesterol. Small LDL, high triglycerides, and lipoprotein (a) are other frequent reasons. Andy, run the other way! Do not heed this doctor's advice! You need a solid answer to the question: Why exactly do I have coronary plaque in the first place? Then, agree on a treatment program that corrects your specific causes.
Cardiologists out of touch 17. June 2006 William Davis (0) This weekend, I'm fulfilling some responsiblities I have every so often to some of the local hospitals. It gives me a chance to interact with many of my colleagues who are likewise "on call" for the weekend. I tried to strike up several conversations with colleagues about how they were managing heart disease prevention. I received blank stares, puzzled looks, indifference. One colleague declared that 80 mg of Lipitor is all you need to know. These same colleagues are the ones scrambling for the heart attack patients in the emergency room, climbing over one another for consultation in the hospital for patients with chest pain and heart failure. They're consumed with expanding the range of procedures they can perform. Carotid stenting is hot. So is stenting of the leg arteries. Defibrillators have been a financial bonanza. Opportunities abound on how to add these procedures to a cardiologist's abilities. But heart disease prevention? How about heart disease reversal? Frankly, I'm embarassed by my colleagues' lack of interest. Imagine we had a cure for breast cancer--not a palliative therapy that just slows the disease down or prolongs life, but actually cures it once and for all. I would hope that all physicians and oncologists would learn how to accomplish this. What if instead they focused on learning new ways to remove breasts, administer new toxic chemotherapies, etc. but ignored the whole idea of cure? This is what is happening with coronary plaque reversal. The answer is right in front of them, but the vast majority (99%) of cardiologists choose to ignore it. After all, prevention and reversal simply don't pay the bills.That means that, in 2006, you simply cannot rely on your cardiologist to counsel you on how to achieve regression or reversal of coronary plaque. How about your internist, family physician, or primary care doctor? Well, they're busy doing pneumovax injections, Pap smears, managing knee and hip arthritis, low back pain, diarrhea, headaches, sinus infections and . . yes, dabbling in heart disease prevention. And, for the most part, doing a miserable job of it. What you generally get echoes the drug manufacturers pitch: Take a statin drug, cut the fat in your diet. Until the majority of doctors catch on, you're going to have to rely on sources like the Track Your Plaque program for better information.
What if your lipoproteins are perfect? 16. June 2006 William Davis William Davis (8) A 23-year old man came to my office having experienced weeks of extreme anxiety, palpitations, and 19 pounds of weight loss triggered by an overactive thyroid. It all happened because of a large dose of iodine received during a CT scan using iodine-containing x-ray dye. (X-ray dyes are made visible on x-ray due to the iodine content.) This is a reaction first described in the 19th century by German physician, Karl Adolph von Basedow. (Jod is German for iodine.)[caption id="attachment_4313" align="alignleft" width="217" caption="Dr. von Basedow. Image courtesy Wikipedia"][/caption] Now, here's the kicker: Jod-Basedow only occurs when there is pre-existing iodine deficiency. Indeed, this young man had an enlarged thyroid, signaling longstanding iodine deficiency (a goiter).This example is among the more flagrant examples of something I have been witnessing: the return of iodine deficiency. As Americans cut back on their intake of iodized salt and fail to obtain iodine in sufficient quantities from seafood, seaweed, or supplementation, goiters and iodine deficiency are making a return in all its glory, reminiscent of the early 20th century, pre-iodized salt. This young man's frightening experience is yet another way iodine deficiency can show itself, by the overenthusiastic thyroid response to a large dose of iodine when iodine deficiency has been present for a prolonged period. Iodine deficiency and goiters have been lost to memory for most people. Even the FDA, in its advice for Americans to reduce salt and sodium intake, have forgotten to remind everyone to obtain iodine from an alternative source. "Those who cannot remember the past are condemned to repeat it."Get your iodine.
Carb counting 5. August 2011 William Davis (20) In the recent Heart Scan Blog post, Can I eat quinoa, I discussed how non-wheat carbohydrate sources like quinoa, amaranth, black beans, brown rice, fruit, etc. do not exert the inflammation-provoking, appetite-increasing effects of wheat (since gliadin and gluten are not present), nor do they increase blood glucose as enthusiastically as the amylopectin A of wheat--but non-wheat grains can still increase blood sugar quite substantially. Of course, any food that triggers blood sugar also trigger hepatic de novo lipogenesis, thereby increasing triglyceride levels and postprandial particles (e.g., chylomicron remnants), which, in turn, triggers formation of small LDL particles. So these non-wheat carbohydrates, or what I call "intermediate carbohydrates" (for lack of a better term; low-glycemic index is falsely reassuring) still trigger all the carbohydrate phenomena of table sugar. Is it possible to obtain the fiber, B-vitamin, flavonoid benefits of these intermediate carbohydrates without triggering the undesirable carbohydrate consequences?Yes, by using small portions. Small portions are tolerated by most people without triggering all these phenomena. Problem: Individual sensitivity varies widely. One person's perfectly safe portion size is another person's deadly dose. For instance, I've witnessed many extreme differences, such as 1-hour blood sugar after 6 oz unsweetened yogurt of 250 mg/dl in one person, 105 mg/dl in another. So checking 1-hour blood sugars is a confident means of assessing individual sensitivity to carbs. Some people don't like the idea of checking blood sugars, however. Or, there might be times when it's inconvenient or unavailable. A useful alternative: Count carbohydrate grams. (Count "net" carbohydrate grams, of course, i.e., carbohydrates minus indigestible fiber grams to yield "net" carbs.) Most people can tolerate around 40-50 grams carbohydrates per day and deal with them effectively, provided they are spaced out throughout the day and not all at once. Only the most sensitive, e.g., diabetics, apo E2 people, those with familial hypertriglyceridemia, are intolerant to even this amount and do better with less than 30 grams per day. Then there are the genetically gifted from a carbohydrate perspective, people who can tolerate 50-60 grams, occasionally somewhat more. People will sometimes say things like "You don't know what the hell you're talking about because I eat 200 grams carbohydrate per day and I'm normal weight and have perfect blood sugar and lipids." As in many things, the crude measures made are falsely reassuring. Glycation, for instance, from postprandial blood sugars of "only" 140 mg/dl--typical after, say, unsweetened oatmeal--still works its unhealthy magic and will lead long-term to cataracts, arthritis, and other conditions. Humans were not meant to consume an endless supply of readily-digestible carbohydrates. Counting carbohydrates is another way to "tighten up" a carbohydrate restriction.
One hour blood sugar: Key to carbohydrate control and reversing diabetes 2. August 2011 William Davis (27) Diabetics are instructed to monitor blood glucose first thing in the morning and two hours after eating. This helps determine whether blood sugar is controlled with medications like metformin, Januvia, Byetta injections, or insulin. But that's not how you use blood sugar to use to prevent or reverse diabetes. Two-hour blood sugars are also of no help in deciding whether you have halted glycation, or glucose modification of proteins the process that leads to cataracts, brittle cartilage and arthritis, oxidation of small LDL particles, atherosclerosis, kidney disease, etc. So the key is to check one-hour after-eating (postprandial) blood sugars, a time when blood glucose peaks after consumption of carbohydrates. (It may peak somewhat sooner or later, depending on factors such as how much fluid was in the meal; protein, fat, and fiber content; presence of foods like vinegar that slow gastric emptying; the form of carbohydrate such as amylopectin A vs. amylopectin B, amylose, fructose, along with other factors. Once in a while, you might consider constructing your own postprandial glucose curve by doing fingersticks every 15 minutes to determine when your peak occurs.)I reject the insane notion that after-eating blood sugars of less than 200 mg/dl are acceptable, the value accepted widely as the cutoff for health. Blood sugars this high occurring with any regularity ensure cataracts, arthritis, and all the other consequences of cumulative glycation. I therefore aim to keep one-hour after-eating glucoses 100 mg/dl or less. If you start in a pre-diabetic or diabetic range of, say, 120 mg/dl, then I advise people to not allow blood glucose to go any higher. A pre-meal blood glucose of 120 mg/dl would therefore be followed by an after-eating blood glucose of no higher than 120 mg/dl. No doubt: This is strict. But people who do this:--Lose weight from visceral fat --Heighten insulin sensitivity--Drop blood pressure--Drop HbA1c and fasting glucose over time--Reduce small LDL and other carbohydrate-sensitive measures By the way, if you inadvertently trigger a high blood sugar like I did when I took my kids to the all-you-can-eat Indian buffet, go for a walk, bike, or burn the sugar off with a 30-minute or longer physical effort. Check your blood sugar again and it should be back in desirable range. But then learn from your lesson: Eliminate or reduce portion size of the culprit carbohydrate food.
Wheat Belly coming to bookstores! 31. July 2011 William Davis (18) Anyone following the conversations on these pages know that I have some very serious concerns about this thing being sold to us called "wheat"--cause it ain't wheat! It is the result of incredible genetics shenanigans inflicted on this plant, mostly in the name of increased yield per acre. I now classify wheat as "Public Enemy #1," the prime nutritional culprit underlying obesity, heart disease, "cholesterol" abnormalities, hypertension, arthritis, psychiatric illness, and on and on. Once you read the full story, I believe that you will agree: Modern Triticum aestivum, the plant that now serves as the source for virtually all the wheat flour products now consumed--organic, whole grain, multigrain, sprouted . . . it makes no difference--does not belong in the human diet. So many people, searching for solutions for their fatigue, weight gain, leg edema, incurable rashes, joint pain, etc., will find their answers here. Wheat Belly: Lose the wheat, lose the weight and find your path back to health will be on bookstore shelves including Barnes and Noble August 30, 2011 or is available for preorder here at Amazon. Wheat Belly will also be available as a downloadable Kindle book and as unabridged audio CDs.You can also follow the Wheat Belly conversations on my Wheat Belly Blog. One of my recent posts discusses the herbicide-resistant semi-dwarf wheat strain, Clearfield, that is now making its way to more and more supermarket shelves. You'll also find more conversation on the Wheat Belly Facebook pages.
The exception to low-carb 31. July 2011 William Davis (60) I witness spectacular results restricting carbohydrates, both in the office as well as in my online experiences, such as those in Track Your Plaque. Of course, the diet I advocate is not just low-carb; it starts with elimination of wheat (for a long list of reasons). So the diet is wheat-free in the setting of low-carbohydrate. What does this accomplish? Here's a partial list:--Weight loss-Specifically, loss of visceral fat, the kind hinted at on the surface as "love handles" or what I call "wheat belly."--Reduced blood sugar and HbA1c (reflecting prior 60-90 days glucose)--Marked reduction in small LDL and triglycerides, increased HDL--Reduced inflammatory measures like c-reactive protein--Reduced leptin and leptin resistance, increased adiponectin--Reduced estrogen and prolactin in men, accompanied by shrinkage or loss of enlarged breasts ("man boobs"); reduced estrogen in females accompanied by reduced risk for breast cancerPretty impressive. But there's one group of people who can experience unexpected effects with this diet: The 25% of people with apoprotein E4. Everybody has two genes for apo E; the most common type is apo E 3/3. Around 1 in 4 people have 1, less commonly 2, genes for apo E4. I hate apo E4. I hate apo E4 because it means I've got to dust off the nonsense I used to tell patients about cutting their fat, cutting their saturated fat. But that's what apo E4 people have to do. But it doesn't end there. Apo E4 people also typically have plenty of small LDL particles triggered by carbohydrates. Put fats and carbohydrates together and you get an explosion of small LDL particles. Remove fats, small LDL goes down a little bit, if at all. Remove carbohydrates, small LDL goes down but total LDL (mostly large) goes up. The large LDL in apo E4 does seem to be atherogenic (plaque-causing), though the data are fairly skimpy. So apo E4 creates a nutritional rock and a hard place: To extract full advantage from diet, people with apo E4 have to 1) go wheat-free, low-carb, then 2) not overdo fats, especially saturated fat. It still gives me the creeps to tell an apo E4 person that they've got to watch their fats, worse than watching Starsky and Hutch reruns.
Can I eat quinoa? 29. July 2011 William Davis (15) . . . or beans, or brown rice, or sweet potatoes? Or how about amaranth, sorghum, oats, and buckwheat? Surely corn on the cob is okay!These are, of course, non-wheat carbohydrates. They lack several crucial undesirable ingredients found in our old friend, wheat, including no:Gliadin--The protein that degrades to exorphins, the compound from wheat digestion that exerts mind effects and stimulates appetite to the tune of 400 additional calories (on average) per day. Gluten--The family of proteins that trigger immune diseases and neurologic impairment.Amylopectin A--The highly-digestible "complex" carbohydrate that is no better--worse, in fact--than table sugar. So why not eat these non-wheat grains all you want? If they don't cause appetite stimulation, behavioral outbursts in children with ADHD, addictive consumption of foods, dementia (i.e., gluten encephalopathy), etc., why not just eat them willy nilly?Because they still increase blood sugar. Conventional wisdom is that these foods trend towards having a lower glycemic index than, say, table sugar, meaning it raises blood glucose less. That's true . . . but very misleading. Oats, for instance, with a glycemic index of 55 compared to table sugar's 59, still sends blood sugar through the roof. Likewise, quinoa with a glycemic index of 53, will send blood sugar to, say, 150 mg/dl compared to 158 mg/dl for table sugar--yeah, sure, it's better, but it still stinks. And that's in non-diabetics. It's worse in diabetics. Of course, John Q. Internist will tell you that, provided your blood sugars after eating don't exceed 200 mg/dl, you'll be okay. What he's really saying is "There's no need for diabetes medication, so you're okay. You will still be exposed to the many adverse health consequences of high blood sugar similar to, though less quickly than, a full diabetic, but that's not my problem."In reality, most people can get away with consuming some of these non-wheat grains . . . provided portion size is limited. Beyond limiting portion size, there are two ways to better manage your carbohydrate sensitivity to ensure that metabolic distortions, such as high blood sugar, glycation, and small LDL particles, are not triggered. More on that in the future.
Lipoproteins . . . zero! 27. July 2011 William Davis (23) With the recent refinements in our approach to correction of the lipoprotein abnormalities that lead to coronary plaque and heart disease risk, I have been witnessing more and more people achieve:Small LDL particles 0 nmol/LLipoprotein(a) 0 nmol/LFor instance, Ted, a 58-year old man I saw in the office today started with:Small LDL 1673 nmol/LLipoprotein(a) 219 nmol/LIn other words, both small LDL particles and lipoprotein(a) are being knocked down to zero values. Incidentally, the combination of lipoprotein(a) with small LDL is among the most atherogenic (atherosclerotic plaque-causing) patterns known. Despite his athletic, slender build and avoidance of unhealthy habits, Ted's heart scan score was 922--very high. So Ted followed the diet I advocate, i.e., wheat elimination followed by elimination of cornstarch, oats, and sugars; high-dose fish oil (total daily EPA + DHA of 6000 mg/day); vitamin D supplementation sufficient to achieve a 25-hydroxy vitamin D level of 60-70 ng/ml; iodine supplementation; and thyroid normalization which, in Ted's case, required supplementation with the T3 thyroid hormone, liothyronine, at a small dose. The result:Small LDL particles 0 nmol/LLipoprotein(a) 0 nmol/LNot everybody, of course, is achieving these incredible--and previously impossible--results. But the numbers are growing. Ted is the third person to achieve zeroes all around, in fact, over the past 10 days. Heart disease prevention is getting better and more powerful every day. And it ain't all about Lipitor and low-fat.
Chocolate almond biscotti 22. July 2011 William Davis (8) Biscotti are twice-baked biscuits or cookies that are perfect for dipping into coffee, latté, or espresso. These wheat-free, low-carb biscotti are rich with the taste of chocolate and almonds.Yield: approximately 15 biscottiIngredients:2 cups almond meal½ cup chopped walnuts1/4 cup cocoa powder (undutched)½ cup dark chocolate chipsSweetener equivalent to ½ cup sugar (e.g., liquid stevia, Truvia)½ cup ricotta cheese, room temperature (replace with coconut milk if lactose intolerant)4 tablespoons butter, melted (replace with coconut oil if lactose intolerant)2 large eggs¼ cup milk, unsweetened almond milk, or soy milk¼ cup almond, peanut, or sunflower seed butter, room temperaturePreheat oven to 350º F.Mix almond meal, walnuts, sweetener, cocoa powder, and chocolate chips in bowl. Mix in ricotta, butter, eggs, milk, and nut butter and blend by hand thoroughly.Pour mix onto baking pan lined with parchment paper or greased with coconut oil or other oil. Shape into loaf approximately 1 inch deep and 3½ to 4 inches in width. Place in oven and bake for 40 minutes.Remove loaf and allow to cool 15 minutes. Slice into approximately ¾-inch widths and lay each biscotto on its side on baking pan. Put back in oven for 10 minutes.Remove pan and flip biscotti over. Place back in oven and bake an additional 5 minutes. Remove and cool.Optional: For a little dark chocolate "icing":Melt 3-4 oz semisweet or dark chocolate in microwave (in 15 second increments until melted) or in metal bowl placed in heated water. Stir in 1-2 teaspoons butter. Dip each biscotti into melted chocolate mix or drizzle chocolate mixture over top of each biscotto.
Sun green tea 21. July 2011 William Davis (11) Here's a great way to enjoy the health benefits of green tea during the summer: sun green tea. I dropped two green tea bags into approximately one-half gallon of cold water in a clear glass jar. I placed the jar in the sun (with top on) for four hours, then brought it into the kitchen. I served it as iced tea with a slice of lemon and mint leaf. The sun green tea was a smoother than standard green tea brewed with hot water. Ordinarily, if you brew hot green tea for more than 3-5 minutes, it becomes more bitter or tannic. This sun green tea, despite steeping for four hours, was not the least bit bitter or tannic. The green tea lasted well for about 48 hours, more than enough to enjoy several glasses per day.