DaVinci Laboratories Thyroid Basics supports appetite, weight management, energy, mood, elevates cellular metabolism, and production of thyroid hormones T3 (Triiodothyronine) and T4 (thyroxine). Supports thyroid function and health. Recommended use: Take 2 capsules with food, twice daily until results occur. Then take 2 capsules daily with food, or as directed by a healthcare professional.