142. Building a Case for Keto with Gary Taubes

Insulin and Fat

Gary Taubes explains the crucial role of insulin in fat storage and metabolism. He describes how insulin signals fat cells to hold onto fat, preventing its release into the bloodstream. This mechanism is essential for managing blood sugar levels, but it also means that high insulin levels can trap fat in the body 1. Taubes emphasizes that minimizing insulin is key to mobilizing fat, which is why ketogenic diets are effective for weight loss 2.

Insulin basically traps fat in your fat cells.

--- Gary Taubes

Reducing insulin through diet can help release stored fat, making it available for energy use 1.

   

Glucagon Role

The interaction between insulin and glucagon is pivotal in the body's metabolism. Gary Taubes explains that while insulin promotes fat storage, glucagon works to release stored fat for energy. This balance is disrupted in high-carb diets, which elevate insulin and suppress glucagon 3.

When you eat carbs, you raise insulin and you depress glucagon, which is the exact opposite of what you want to do.

--- Gary Taubes

Historically, low-carb diets were used to manage diabetes before insulin was discovered, highlighting the importance of glucagon in regulating blood sugar and fat metabolism 4.

   

Hormonal Eating

Gary Taubes challenges the calorie-focused approach to dieting, advocating for a hormonal perspective instead. He argues that obesity is not simply a result of overeating but is driven by hormonal imbalances, particularly involving insulin and glucagon 5.

This is not an eating too much problem. It's a hormonal problem.

--- Gary Taubes

Taubes critiques the historical view that overeating causes obesity, pointing out that hormonal regulation of fat storage was understood as early as the 1960s 6.