The Gravity of Weight

The daunting science of weight control.

From the Frying Pan into the Fire? Saturated Fat and Health

For the past fifty years, we have been told to avoid saturated fat in foods like whole milk, eggs, red meat, butter, and even lard. A new book by Nina Teicholz recommends we eat these foods and she revisits the science behind some of our deeply held beliefs about what constitutes a healthy diet. Read More

Katz's "refutation" consists

Katz's "refutation" consists mainly of his opinion that you shouldn't believe Teicholz because she's written a book, and people who write books can't be trusted, because they write books to make money.

Other than that, he doesn't refute anything. Teicholz analyzes and cites many studies to demonstrate how shoddy was the data supporting the low-fat recommendations. Katz says she's wrong. Teicholz spends many pages discussing the questionable ways in which Ancel Keys collected and presented his data. Katz says she's wrong about that, too.

Why should we believe his opinion, if he can't be bothered to bring the evidence to support it?

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Sylvia R. Karasu, M.D., is Clinical Professor of Psychiatry at Weill Cornell Medical College and senior author of The Gravity of Weight.

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