What You Can (And Can’t) Eat On A Keto Diet So Long, Carbs. goodhousekeeping.com

Nutritionists, including the Good Housekeeping Institute's own Jaclyn London, MS, RD, CDN, remain more skeptical. The diet's aim of inducing ketosis — a metabolic process where the body uses fat instead of carbs for energy — can backfire tremendously. Besides the lack of long-term scientific research, this restrictive plan takes a lot of willpower, and any weight you may lose while on it will likely return when you stop. RDs and other experts like U.S. News and World Report agree that Mediterranean-style eating plans have more research behind them and produce better, more long-lasting results.

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