While food diaries may seem difficult to some to keep up, the study shows that it can produce more weight loss, Diekman said.
One limitation of the study, also pointed out by the researchers, is that the women were mainly white, so the findings may not apply to others. However, much other research has found a link between food journals or diaries and weight loss, Diekman said.
To learn more about keeping a food diary, visit the U.S. National Heart, Lung, and Blood Institute.
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