Understanding Thyroglobulin Antibody: What You Need to Know Kumar Jeetendra | March 14, 2024 TgAb targets thyroglobulin which is a protein that helps in the production of thyroid hormones and is manufactured by the immune system. The thyroid gland manufactures thyroglobulin which is important for metabolism control or regulation, growth or energy expenditure and also as a precursor for thyroxine (T4) along with triiodothyronine’s formation. On the opposite side, …