T3 And T4 Thyroid Hormones
T3 and T4 thyroid hormones play essential roles in the body especially when it comes to boosting metabolism and burning fat. Therefore, your body’s production of T3 and T4 thyroid hormones must be optimised for maximum weight loss. The thyroid gland is the site for the production of thyroxine (T4) and a portion of the triiodothyronine (T3), which boosts the metabolic rate, and therefore fat burning, of all cells. Triiodothyronine (T3) is about 5 times more active than T4 and its production in the body results mainly from the thyroid and liver’s conversion of T4 into T3. In order to function optimally, the thyroid gland requires iodine and a great source of iodine is kelp (a type of seaweed). Also, research has shown that thyroxine output may be increased by supplementing with gugglesterones. Phosphates, which have a positive impact on the levels of ATP in the liver may assist in the conversion of T4 to T3 since reduced ATP levels, as a result of dieting, inhibit the conversion.
Often when people want to lose body fat they will reduce their intake of carbohydrates. They may even follow one of the many low-carb diets that are on the market. Studies show that diets that restrict carbohydrates cause a reduction in T3 levels and that administering carbohydrates can restore T3 levels after they have declined. This is one reason why the fat piles back on after carbs are re-introduced into the diet. Accordingly, it is preferable to reduce carbs without eliminating them altogether, change the source of carbs (to more fruit and vegetables and less processed carbs) and combine this with periodic carb-load meals ( Treat Day ). Sleep has a marked affect on the body’s production of thyroid hormones. Sleep deprivation causes a decrease in the body’s production of these hormones. Exercise has the affect of increasing the production of thyroid hormones, however, the levels of these hormones in active individuals is normal, due to the higher ‘turnover’ that occurs in their bodies. This means that even though the production of these hormones increases, they are also metabolised by the body at a higher rate. If an excessive amount of exercise is performed (overtraining) then there is a reduction in the level of T3. Here’s a summary of T3 and T4 thyroid hormones’ functions: • Stimulates metabolic rate |
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