TG and type 2 diabetes mellitus: Therefore, in the present study, we aim to investigate the association between the levels of BCAAs and their metabolic byproducts, branched-chain keto acids (BCKAs), and thyroid hormone levels (including triiodothyronine (T3), thyroxine (T4), free triiodothyronine (FT3), and free thyroxine (FT4) [12]) in euthyroid T2DM patients, which may contribute to the development of novel diagnostic and therapeutic strategies for this population.