GIP and type 1 diabetes mellitus: Furthermore, the same trial revealed that EVOO consumption resulted in high GLP-1 and gastric inhibitory peptide (GIP) levels in the circulatory system, while in another trial with type 1 diabetes (T1D) patients, an increase in gastric emptying and GPL-1 secretion was observed together with reduced glucose absorption through glucose–lipid competition that can contribute to a lower glycemic response [163].