Most people have Hypothyroidism, we can starve, and in no way lose a pound. That's a genetic predisposition, most of the time. Absolute Nutrition has Thyrox T To T TSH, Thyroid Stimulating Hormone. No, it is not synthetic hormones, simplest Aminos, Choline and others to help gradual Thyroid, additionally has Phosphatidyl Choline which breaks down fats in the liver and is likewise Brain Food.