THE DIET FIX: Why Diets Fail and How to Make Yours Work, by Yoni Freedhoff, M.D. Harmony Books, 336 pp., $25.99.

Dr. Yoni Freedhoff, a Canadian obesity specialist and online columnist for U.S. News & World Report, writes of what happens to "survivors of years -- often decades -- of multiple failed traumatic dieting efforts."

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He calls it "post-traumatic dieting disorder," with symptoms like "guilt, shame, failure, depression, despair, binge eating . . . is "not a trivial condition medically or psychologically . . . can be devastating."

To help, Freedhoff offers "the 10-day reset," including banishing hunger by organizing meals, snacks, calories and protein; "making friends with your kitchen" and "learning how to stop beating yourself up when things go awry."

THE SCOOP Keeping a food diary is just one tip he takes from the National Weight Control Registry of 10,000 dieters who've kept weight off for years.

THE BOTTOM LINE Since indulging is important, Freedhoff actually writes prescriptions for chocolate. But you'll have to learn: "How much of it do I need to be happy?"