The product details mentioned T4 and T3, what are they?
Thyroid gland converts iodine into thyroid hormones: thyroxine (T4) and triiodothyronine (T3). T3 and T4 are then released into the bloodstream and are transported throughout the body where they control metabolism (conversion of oxygen and calories to energy). Every cell in the body depends upon thyroid hormones for regulation of their metabolism. The normal thyroid gland produces about 80% T4 and about 20% T3, however, T3 possesses about four times the hormone “strength” as T4.

Why does Thyroid T3 contain Phosphates?
According to studies, phosphates can avoid decrease in T3 (a thyroid hormone) and increase the basal metabolic rate (BMR). BMR is the number of calories one burns at rest. Phosphates are found in high-energy compounds such as ATP and phosphocreatine. Thyroid activity is directly related to the amount of energy one possesses, thus it is essential to ingest plenty of phosphates daily.

Most diets do work and change the human body in more ways than just burning the fat off. Hormone production lessons and muscle loss can occur. People find it very difficult to lose those last few pounds. The body has a shortage of calories and responds by storing fat again. That can cause frustration after so much hard work in keeping weight off.
The purpose of the thyroid gland is to extract iodine from foods and convert it into T3 (Tyrosine) and T4 (Trilodothyrine). These hormones are then transported by the bloodstream to every cell in the body regulating the metabolism of each. The hormone T3 is much stronger than T4 so having more of it is crucial in speeding up energy conversion of fat cells.
Phosphates prevent T3 reduction and are significant in maintaining a high Basal Metabolic Rate or BMR, which is the amount of energy the body burns while at rest. They are found in Phosphocreatine and ATP which are high energy compounds found in the thyroid. Keeping a large amount of phosphates is crucial in having a high BMR.
L-tyrosine is an amino acid found in T3 hormone. It is responsible for skin health, mental stability, and human growth. Phosphatidyl Choline found in T3, emulsifies and breaks down fatty tissue helping vital organs function normally.
Absolute Nutrition produces Thyroid T3 containing all natural ingredients. With 300mg of Guggulsterones (Gum Guggal Extract) to stimulate thyroid function; T4 converts to T3 at a faster rate to help support a healthy metabolism – making this product one of the most effective and unique supplemental blends on the market.