T3 (Triiodothyronine)

Item Catalog Number: LC002188

T3 or triiodothyronine is the active form of the thyroid hormone. T3 acts as a metabolic throttle for fueling all of the daily cellular functions.

Hypothyroidism is a condition where T3 blood levels are low. This causes cellular dysfunction and metabolic breakdown. Symptoms may include weight gain, constipation, dry skin and hair loss. Low T3 levels may even lead to the development of chronic diseases such as heart disease and diabetes.

Hyperthyroidism is the term for elevated T3 blood levels. Symptoms can include anxiety, insomnia, heart palpitations, and bowel discomfort.

This test measures the total amount of T3 produced by the body. For a more extensive evaluation of thyroid function, Life Extension offers several comprehensive thyroid panels.

Fasting is not required. Take all medications as prescribed.