No, you have it backwards friend. Obesity in very rare cases is tied to disregulation of hormones. In nearly all cases, it's tied to diet and lifestyle. When I walk into a bakery, I look around, and estimate that 95% of the patrons have no business eating that stuff, until they reach a safe body fat level.Obesity is in almost all cases entirely hormonal, specifically tied to disregulation of the hormones insulin and leptin.
