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Keto vs. Carnivore, Hormonal Chaos from High Protein, the *Surprising* Truth About Cold Exposure, and Why Carbs Are CRUCIAL with Jay Feldman

Boundless Life

NOTE

Long-term Keto Impact: Watch Your T3 Levels

Research on ketogenic diets shows a concerning trend of low T3 levels, even in individuals adhering to the diet for several years. While most studies are short-term, notable findings reveal that women on a four-year ketogenic diet exhibited low T3 and elevated reverse T3 levels, suggesting hormonal imbalances. In a study where these women switched to a carbohydrate-containing diet for three weeks, T3 levels increased significantly. However, returning to the ketogenic diet led to a decrease in T3 levels back to the original low. Additionally, trends in epilepsy patients indicate lower T3 and elevated TSH, alongside reproductive hormone issues. These insights highlight the need for more comprehensive long-term studies on the metabolic effects of prolonged ketogenic diets.

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