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Aitor Calero García

PaNu - PāNu Blog - Paleo 2.0 - A Diet Manifesto - 0 views

  • until I read Good Calories, Bad Calories (GCBC) by Gary Taubes I still thought that food was just fuel and obesity was always due to bad genes, or overeating, or lack of exercise - the usual suspects
  • Some diseases that are very common today, which we call Diseases of Civilization or DOCs, do not occur with any frequency in native or hunter-gatherer populations until western foods are introduced
  • The background assumption was that cancer, heart disease and obesity are only issues because we live long enough to get them now, and aren’t we lucky for modern medicine?
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  • There was really no print equivalent to today’s 24/7 propaganda of pop nutrition via MSN and Yahoo, with perky titles about the latest worthless observational study associating a colorful plant with some tertiary biomarker of health status
  • But in Gary’s book, the descriptions of populations that ate native whole-foods diets, and what happened to them when they started to eat the white man’s food, was totally eye opening and had never been hinted at in my medical school curriculum
  • You all know this one - The vegan menace. Killing infants and robbing adults of their vitality is the ultimate denial of biology. Endorsed by countless brainless celebrities
  • It seemed that the only commonly agreed-upon element among those claiming to invoke what we are “evolved” to eat, might be that cereal grains should not be a predominant part of the diet
  • That we are eating some things we are clearly inadequately adapted to seems certain, but the idea that the dietary bright line is narrow and exists at the 10,000 year mark is a cartoon view not supported by the science
  • In biology, “putative” means an agent that we think is the responsible or active agent, but we are always trying to falsify our hypothesis. We are always looking for evidence that we might be wrong about our agent.
  • The problem in wheat is proteins, not carbohydrate. White flour is dense and highly concentrated in these problematic proteins and antinutrients. Wheat causes problems even in those who’ve been eating it for thousands of years
  • Eat potatoes, sweet potatoes or root veggies for your starch, and stop eating all bread, cookies cakes and other baked goods
  • Fructose is a carbohydrate, but metabolically it is quite different from the glucose that comes from starch
  • the actual requirement is so small it might be better considered a micronutrient
  • As n-3 and n-6 precursors compete for the same enzyme in the eicosanoid pathway, the excess of n-6 in the diet means that n-3 is outcompeted at the enzyme level. The result is a preponderance of inflammatory molecules. Increased cancer and inflammation are both likely related to this
  • Many are aware that 6:3 ratio is important, so they try to compensate by taking fish oil to balance the 6:3 ratio
  • High total PUFA, especially including the highly unstable n-3, leads to oxidative damage to your cells. Your arteries, liver and  other organs don't appreciate extra oxidative damage
  • Stop eating all temperate vegetable oils – cooking and frying oils like corn, soy, canola, flax, all of it. And go easy on the nuts and factory chicken
  • a substantial fraction of nutrition from animal sources is necessary for health
  • Reject the alternative hypothesis of saturated fat or cholesterol as a Neolithic agent – the so-called diet/heart hypothesis
  • Discount the absolute importance of macronutrient ratios in the nutritional transition
  • whole foods diet that includes adequate micronutrients is the best way to eat healthy
  • tubers, root vegetables and other sources of starch can be healthy for normal people
  • A diet that is archaic, in the sense of appealing to the past with both science and history, but not intending to re-enact a battle that has only happened in our imaginations
Aitor Calero García

Coconut Oil - From Villain to Health Food - A Good Appetite - NYTimes.com - 0 views

  • “Virgin coconut oil, which has not been chemically treated, is a different thing in terms of a health risk perspective. And maybe it isn’t so bad for you after all.”
  • And while it’s true that most of the fats in virgin coconut oil are saturated, opinions are changing on whether saturated fats are the arterial villains they were made out to be. “I think we in the nutrition field are beginning to say that saturated fats are not so bad, and the evidence that said they were is not so strong,” Dr. Brenna said.
  • Lauric acid increases levels of good HDL, or high-density lipoprotein, and bad LDL, or low-density lipoprotein, in the blood, but is not thought to negatively affect the overall ratio of the two
Aitor Calero García

Americans Are "Sickeningly Sweet" - 0 views

  • Babies and Beverages – “A study from the American Journal of Clinical Nutrition found that reduction in sugar-sweetened beverages (regular soda, fruit drinks and fruit punch) had a significant effect on weight change at 6 months and 18 months, even more of an impact than solid- calorie reduction.”
  • Liquid caloric consumption can be quite a significant contribution to weight gain so this is a tremendous effort to educate the public,” said Dr. Bartfield
Aitor Calero García

I predict a riot… « Weight loss, gallstones and the obesity crisis - 0 views

  • Bernard Gesch is probably the most important scientist in world studying effects of nutrition and behaviour right now
  • Aylesbury Young Offenders Institute, where half the prisoners got a food supplement, the other half a placebo. Result? The ones receiving a real supplement committed 37% fewer violent offences. Placebos – no change. Stunning
  • Sugar + processed food = increases in violence.
Aitor Calero García

Synthetic surfactant food additives can cause inte... [Med Hypotheses. 2011] - PubMed r... - 0 views

  • In many cases the surfactants added to foods are exactly the same as the ones used in pharmaceutics as absorption enhancers. Numerous synthetic surfactant food additives have been shown to increase the intestinal permeability through paracellular and/or transcellular mechanisms and some of them were also shown to inhibit P-glycoprotein
Aitor Calero García

The Evolution of Human Diet / Anthropology Video | Evolvify - 0 views

  • A big factor in determining this is that there is little evidence of hominin plant consumption during the Acheulean (~1.6 m – 100,000 years ago) period of the paleolithic. Admittedly, part of this is because plant evidence doesn’t fossilize as well as bones, but it’s interesting that the plant eating assumption persists on such small amounts of evidence. As usual, this refutes the vegetarian position in terms of evolutionary biology
  • Humans specialize in nutrient dense, hard to extract sources, while chimpanzees specialize in ripe fruits and plants that have low nutrient density which are also easily collected
  • necessity of tool use and social organization to sustain expanding populations
Aitor Calero García

Association between pre-diagnostic circulating vit... [BMJ. 2010] - PubMed result - 0 views

  • CONCLUSIONS: The results of this large observational study indicate a strong inverse association between levels of pre-diagnostic 25-(OH)D concentration and risk of colorectal cancer in western European populations. Further randomised trials are needed to assess whether increases in circulating 25-(OH)D concentration can effectively decrease the risk of colorectal cancer
Aitor Calero García

Fatness leads to inactivity, but inactivity does not lead to fatness: a longitudinal st... - 0 views

  • Conclusions Physical inactivity appears to be the result of fatness rather than its cause. This reverse causality may explain why attempts to tackle childhood obesity by promoting PA have been largely unsuccessful
Aitor Calero García

Why existing efforts to combat childhood obesity are bound to fail. By Gary Taubes | hi... - 0 views

  • For the last 60 years, physicians and public-health authorities have been giving that exact same advice to obese people—children and adults—with little or no success
  • The subjects experience modest weight loss (maybe nine or 10 pounds in the first six months), and then they gain the weight right back. Weight loss doesn't last
  • The researchers enrolled nearly 50,000 mostly overweight or obese women into the trial, chose roughly 20,000 of them at random, and instructed that group to eat a low-fat diet, rich in fruits, vegetables, and fiber. These women were given regular counseling to motivate them to stay on the diet. If we believe what these women said they were eating, they also cut their average energy intake by well more than 300 calories a day
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  • After seven-plus years on the diet, these women lost an average of one pound each6 (PDF). And their average waist circumference—a measure of what the diet-book authors like to call "belly fat"—increased
  • whatever weight these women lost was not fat but lean tissue—muscle
  • Prior to the 1960s, clinicians used to argue that making an obese person exercise would just make them hungry—they'd work up an appetite—and that's the last thing you want for someone who needs to lose weight.
  • but it certainly speaks to the idea that getting kids to move more is not the answer
  • Making it possible for children to enjoy the benefits of physical activity is a wonderful thing, but expecting that they'll lose weight by doing so is naive
  • how the human body regulates fat metabolism and the accumulation of fat in our adipose tissue
  • why we accumulate fat—or more specifically, why our fat cells store more calories as fat than they release into the circulation to be burned for fuel
  • Insulin levels, for all intents and purposes, are controlled by the carbohydrates in the diet. The more refined and easily digestible those carbohydrates (the higher the glycemic index, as nutritionists would say), the more insulin will be secreted. And the sugars we consume—i.e., sucrose, the stuff we put in our coffee, as well as high-fructose corn syrup—will cause long-term increases in insulin production
  • Every woman knows carbohydrate is fattening: this is a piece of common knowledge, which few nutritionists would dispute
  • We have to tell children (and their parents) that carbohydrate-rich foods—especially sugars and liquid sugars, like fruit juice and soda—are literally fattening.
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    For the last 60 years, physicians and public-health authorities have been giving that exact same advice to obese people-children and adults-with little or no success
Aitor Calero García

High Fructose Corn Syrup (HFCS) Is Fine In Moderation… Wait, What?! - 0 views

  • HFCS has been shown to interfere with a key enzyme in the body that delivers copper to your vital organs. This effectively results in copper deficiency for many, adversely impacting a wide range of organ systems including the heart, testes, pancreas, and damaging the liver-generating inflammation and cirrhosis. It has been strongly linked to the sharp rise in both obesity and diabetes. Furthermore, fructose is 20-30 times more gylcating than glucose. It turns anyone into a raging AGE-producing factory. Animals fed a high-fructose diet in laboratory studies developed livers that looked a lot like those of hardcore, aging alcoholics-inflamed and shot through with dead cells and scar tissue-the condition known as “cirrhosis.”
Aitor Calero García

Kristin Wartman: A Big Fat Debate - 0 views

  • The low-fat trend finally appears to be on its way out. The notion that saturated fats are detrimental to our health is deeply embedded in our Zeitgeist--but shockingly, the opposite just might be true
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