Word: fatted
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Dates: during 1990-1999
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...Summers has reason to throw up his hands again. The latest dispatch from the front lines of America's losing fight against fat -- one sure to fluster consumers as they frantically scan the nutritional labels on supermarket shelves -- comes from the Boston University Medical Center. Not only do some fats appear to be less harmful than others, say Dr. Edward Siguel and his colleague Dr. Robert Lerman, but diets deficient in "good" fats may actually be dangerous to human health. Backing up this startling assertion is a study Siguel and Lerman published in the journal Metabolism. In 47 patients with...
Fatty acids, the building blocks for fat, are divided into three chemical classes according to their hydrogen content: saturated, mono-unsaturated and polyunsaturated. Only the polyunsaturated ones are considered "essential," meaning they cannot be manufactured by the body. Like minerals and vitamins, they must be ingested as food. "If we don't eat enough," says Siguel, "then we won't have enough." And that would be unfortunate, for these compounds -- principally linoleic acid and linolenic acid -- are vital to the maintenance of cell membranes and to the manufacture of potent chemical messengers that regulate everything from blood pressure...
...oils in processed grains, advises Siguel. Food manufacturers generally remove these spoilage-prone compounds from pasta, bread and breakfast cereal in order to lengthen the shelf life of their products. Thus, Siguel ventures, a slice of pizza made with soybean oil may be healthier than portions of some low-fat foods containing the same calorie count...
What's wrong with this picture? Quite a lot, argues Dr. Scott Grundy of the University of Texas Southwestern Medical Center, an expert on the role of fat in heart disease. For starters, he says, there is no reason to believe that essential-fatty-acid deficiency is widespread. On average, Americans consume more of these fatty acids than their bodies require -- and that could be a problem. In laboratory animals, too much polyunsaturated fat has been linked to suppression of the immune system and the growth of malignant tumors. There is even reason to suspect that fatty acids derived from...
...opinions that results from incomplete knowledge and focus on a few unchanging verities. The reputations of margarine and soybean oil may rise and fall many times over. But butter is still bad. Fruits and vegetables are still good. And most scientists still agree that Americans eat too much fat of all kinds...