"These studies are revolutionary," said Dr. Jules Hirsch, physician in chief emeritus at Rockefeller University in New York City, who has spent a lifetime studying the effects of diets on weight and health. "They should put a stop to this era of thinking that we have all the information we need to change the whole national diet and make everybody healthy."
The study, published in today’s issue of The Journal of the American Medical Association, was not just an ordinary study, said Dr. Michael Thun, who directs epidemiological research for the American Cancer Society. It was so large and so expensive, Dr. Thun said, that it was "the Rolls-Royce of studies." As such, he added, it is likely to be the final word.
"We are not going to reverse any of the chronic diseases in this
country by changing the composition of the diet," Dr. Howard said.
"People are always thinking it’s what they ate. They are not looking at
how much they ate or that they smoke or that they are sedentary."
There is a common belief that Americans get fat because they eat too
many carbohydrates. The idea is that a high-carbohydrate, low-fat diet
leads to weight gain, higher insulin and blood glucose levels, and more
diabetes, even if the calories are the same as in a higher-fat diet. That did not happen here.
have said the opposite: that low-fat diets enable people to lose weight
naturally. But that belief was not supported by this study.
Calories In and Calories Out, It Appears