Sports Performance & Nutrition

Free thyroxine also referred to as T4 . It works to speed up the metabolism and is one of the two hormones produced by the thyroid gland. This test will only look to identify free T4 which means the the thyroxine is unbound in the body. Only when excessive T4 is unbound does it symbolise an issue.

Most sports supplements are safe for daily use when taken within recommended dosages. However, it's best to cycle certain supplements like creatine, pre-workouts, and testosterone boosters to avoid dependency.