The ketogenic diet—or, Keto—is the rage of the decade. Adherents are rabid about it. Keto dieters make one simple argument: It works! Yes, it works. That is why it is so popular. But, is it safe? The research is not yet conclusive. Yet, contrary to keto lovers’ claims, there are several studies associating long-term keto dieting with a host of medical maladies. And consider this: not a single reputable fitness/health certifying agency recommends the use of the ketogenic diet except under the care and supervision of a doctor. Read this linked essay for the thoughts of a professional dietician.