A number of readers have sent me e-mails in recent days with inquiries about obesity surgery. The heightened interest in the subject seems to stem from news reports about a pharmaceutical company, Allergan, which has asked the Food and Drug Administration (F.D.A.) to modify its existing policy on surgical procedures for the purpose of weight loss. For now, the F.D.A. considers operations of this kind to be appropriate only for patients with a body mass index (B.M.I.) of 40 and above, or 35 and above in cases where so-called "comorbidities" exist, meaning other serious health issues often connected with obesity, like diabetes and hypertension, among others........click for more

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