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Byline: David S. Ludwig and Steven B. Heymsfield Most diet trials in the best journals fail even the most basic of quality control measures. Most diet trials in the best [...]

Most diet trials in the best journals fail even the most basic of quality control measures. Most diet trials in the best journals fail even the most basic of quality [...]

Obesity rates in the United States continue to worsen. So, too, does economic inequality. Are these trends related? After remaining essentially flat in the 1950s and 1960s, the prevalence of [...]

Byline: DAVID S. LUDWIG Some people eat as little fat as possible to lose weight and stay healthy, while others avoid carbohydrates. A vegan diet (with no animal products) and [...]

CORRECTION APPENDEDBOSTON -- SINCE the publication of the federal government's 1980 Dietary Guidelines, dietary policy has focused on reducing total fat in the American diet -- specifically, to no more [...]

Byline: DAVID S. LUDWIG and MARK I. FRIEDMAN For most of the last century, our understanding of the cause of obesity has been based on the first law of thermodynamics: [...]

Ask the doctor Are artificial sweeteners a good alternative to sugar? Q. More and more nutrition advice seems to be anti-sugar these days. So are artificial sweeteners a good alternative? [...]

The article focuses on the need for the reduction of total fat in the diet indicated in the "1980 Dietary Guidelines" published by the U.S. government and its impact on food spending in the country.