There are several problems with the popular-press interpretation of the study described in this article. The study saw a reduction to only 29 percent of calories from fat, which is still far above the 20 percent-or-less advocated by dietary and cardiovascular experts. Also, no one in the field of heart disease prevention would advocate solely reducing fat intake. For instance, salt intake needs to be reduced, exercise needs to be added, stress should be avoided, and diets should include more fruits and vegetables and less red meat and simple carbohydrates.

Glenn M. Gungel
Forreston, Ill.

Science takes another big hit from the results of the new low-fat study. What is troubling is the number of people whose behavior was affected by an earlier study’s faulty conclusions. Nonscientists are becoming increasingly cynical about scientific research. The fields of nutrition, medicine, and environmental studies appear to be particularly vulnerable to this problem. We scientists need to spend a little more time and some intelligent design in policing ourselves to ensure that our credibility is preserved.

James Seeser
St. Louis, Mo.

From the Nature Index

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