<prompt> Which isare the GI hormones stimulating insulin secretion?GIPGastrinSecretinAll of the above  <response>: GIP, Gastrin, Secretin CCK. Stimulating factor for insulin secretion: Glucose - Relationship between glucose concentration insulin secretion is SIGMOIDAL Mannose Amino acids arginine, leucine Intestinal hormones -GLP -1. GIP. Gastrin. Secretin. CCK b-keto acids Parasympathetic stimulation - Acetylcholine cAMP b-adrenergic stimulation. Drugs:Endocrine hormones like Growth hormone, Glucagon Glucocoicoids. Theophylline. Sulfonylureas 