Author Topic: the cholesterol scare  (Read 583 times)

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feinting goats

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the cholesterol scare
« on: April 19, 2012, 08:26:35 PM »
all began with this photo:



the cover of Time, March 1984.  Yes it coincides with the invention of the drug cholerestyramine in 1984.




the following quote is from the WAPF article "Good Fats, Bad Fats: Separating Fact from Fiction" , bolding mine.
http://www.westonaprice.org/know-your-fats/good-fats-bad-fats-separating-fact-from-fiction


"...The myth that saturated fatty acids are “bad fat” while polyunsaturated fatty acids (PUFA) are “good fat” emerged in the 1950s as the diet-heart hypothesis. This hypothesis stated that the saturated fat found in animal fats and tropical oils would contribute to heart disease by raising blood cholesterol levels while the PUFA found in vegetable oils would do just the opposite.

If the nutritional and medical establishments had taken the approach of Weston Price and endeavored to begin unraveling the causes of heart disease by studying the diets and lifestyles of populations that were immune to the disease, it is unlikely the diet-heart hypothesis would ever have emerged. The traditional diets of Pacific islanders free of heart disease, for example, vary widely in their proportions of fat and carbohydrate, but as can be seen in Figure 1, they are all rich in saturated fat and low in PUFA when compared to the standard American diet.1,2,3 Each of these traditional diets is based primarily on starches, fruits, coconut and fish, so the PUFA comes mostly from fish rather than from vegetable oils.

The foundation of the establishment’s approach to the riddle of heart disease featured no such investigation of traditional diets, and the result of this negligence was the diet-heart hypothesis. Advocates of this hypothesis supported it in the early 1950s with two key pieces of evidence. The first was that blood cholesterol levels were statistically associated with heart disease risk.4 The second was that, in highly controlled laboratory experiments, replacing saturated fats like butter, lard or coconut oil with polyunsaturated oils like corn or safflower oil would lower blood cholesterol levels.5,6 Playing a game of connect the dots, they argued that substituting vegetable oils for traditional animal fats and tropical oils would lower the risk of heart disease.

In 1957, the American Heart Association called the hypothesis “highly speculative,” and concluded that “the evidence at present does not convey any specific implications for drastic dietary changes, specifically in the quantity or type of fat in the diet of the general population, on the premise that such changes will definitely lessen the incidence of coronary or cerebral artery disease.”7 Four years later, the state of the evidence remained the same but three members of the committee were dropped and replaced by four new members, including Ancel Keys, a leading proponent of the hypothesis. The updated report recommended that men who are overweight, have high blood pressure or high cholesterol, lead “sedentary lives of relentless frustration,” or have a strong family history of heart disease should replace part of the saturated fat in their diets with PUFA.8

The hypothesis nevertheless remained controversial in the scientific community for decades. The tide turned in 1984 when the Coronary Primary Prevention Trial showed that cholestyramine could prevent heart attacks.9 Cholestyramine is a drug that binds bile acids in the intestine and causes their excretion in the feces. As a result, the liver takes cholesterol in from the blood in order to make more bile acids and the concentration of cholesterol in the blood falls. Time magazine hailed the trial as a vindication of the American Heart Association’s twenty-three-year-old stance against animal fats. Butter, eggs, and bacon were all conspicuously absent from the treatment protocol of this trial, but Time nevertheless ran a cover story entitled “Hold the Eggs and Butter,” which artfully featured a frowning face with eyes of sunnyside up eggs and a downturned mouth of a slice of fried bacon. The article declared, “cholesterol is proved deadly, and our diet may never be the same."

« Last Edit: April 19, 2012, 08:30:31 PM by feinting goats »