berberine for glp 1 induces GLP-1 secretion through activation of bitter taste receptor pathways Berberine is one of the

Hepatology 47 , 596604 (2008)

However, the potential for delaying or preventing the progression of T2DM in patients treated with GIP and GLP-1 remains uncertain, as there is currently no definitive evidence from human studies demonstrating that enhanced incretin activity directly affects -cell mass or alters the progressive loss of insulin secretory capacity in humans

That depends on which one youre on and what your goals look like

Molecular Structure and Sequence Likewise, The sequence contains norleucine, D-phenylalanine, N-terminal acetylation, C-terminal amidation, and a lactam bridge between aspartic acid and lysine