Is eating big portions of food and laying on the couch for too long the culprit in the obesity epidemic? Eating too much, and moving to little? That’s the message we’ve been fed for decades, during the obesity epidemic, so saying that it has not worked out great is quite an understatement.
Now a new genetic study conducted by Harvard-based Dr. David Ludwig and colleagues provides new support for an alternative explanation, with the fat-storing hormone insulin as the main controlling factor in obesity.
In the study they found that genes leading to higher insulin secretion are very strongly linked to higher body weight. This provides relatively strong support for the theory that the higher insulin (primarily released when eating carbs) actually causes obesity. This as we know that the genes come first, before any lifestyle factors during life.
Dr. David Ludwig and Professor Tim Noakes both supply interesting comments on the study:
- Dr. David Ludwig: Genetic study supports carbohydrate-insulin model of obesity
- Professor Noakes: So What Comes First: The Obesity or the Insulin Resistance? And Which Is More Important?
- The study: Genetic Evidence That Carbohydrate-Stimulated Insulin Secretion Leads to Obesity
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