Comment Re:No (Score 2, Interesting) 330
Japan already has mandatory diets for those with BMI>30.
Not quite true. The relevant law mandates metabolic syndrome checks for people aged 40-74, and it catches people with (1) waist size >= 85cm (90cm for women) or BMI >= 25 and (2) high blood pressure, high cholesterol, or high blood sugar. Supposedly there's a financial penalty for not taking the exam, or for not following the directions (diet, etc.) you're given, but I haven't been able to find any specific mention of such.