What It Is: The so-called full-fat diet builds off of research in January 2007 in which Swedish researchers found that women who had at least one serving of milk (whole milk, to be exact) or cheese each day experienced less weight gain over the following nine years than their counterparts who did not. Some concluded from this research that other full-fat daily foods may also provide these weight loss benefits -- though the researchers behind the Swedish study were hesitant to delve so deeply into the results to make a similar claim.
While the full-fat diet has many different versions, one of the most prominent proponents of eating foods in their full-fat form is New York-based nutritionist Esther Bloom, who delivers such advice in her book, "Eat, Drink and Be Gorgeous."
Expert Verdict:
Ayoob: "I like the non-diet mentality of this. It's the idea that you can 'have your cake and eat it too.' But it's clear about this: you can't have it all the time and in all amounts. It's the idea that nothing is forbidden, and that's good."
Ikeda: "Although Esther Blum is an RD [registered dietitian], which gives her a plus for credibility in my book, her enthusiasm for supplements negates the plus with a minus. None of the endorsements on her Web site come from credible nutrition experts."
Katz: "I didn't find enough information about this to make a judgment, but the usual promises were made."
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