What is the truth behind US Right to Know (USRTK), a creation of the Organic Consumers Association, and its ongoing campaign to discredit the GLP and agricultural biotechnology innovation? The truth is that GLP-1s don’t directly cause fatigue, but they can contribute to tiredness for a few different reasons related to how they affect your metabolism and digestive support for appetite balance system. Intravenously administered glucose does not cause the release of incretin hormones, and therefore leads to lower insulin secretion than orally given glucose; "incretin effect" is the potentiation of insulin secretion by incretins. When they do, the response also results in a release of insulin, which contributes to hormonal and metabolic balance. Gao H, Kiesewetter DO, Zhang X, Huang X, Guo N, Lang L, Hida N, Wang H, Wang H, Cao F, Niu G, Chen X. PET of glucagonlike peptide receptor upregulation after myocardial ischemia or reperfusion injury. Velikyan I, Eriksson O. Advances in GLP-1 receptor targeting radiolabeled agent development and prospective of theranostics. Selvaraju RK, Velikyan I, Johansson L, Wu Z, Todorov I, Shively J, Kandeel F, Korsgren O, Eriksson O. In vivo imaging of the glucagonlike peptide 1 receptor in the pancreas with 68Ga-labeled DO3A-exendin-4. Receptor density is also higher in the lungs of rats and mice than in humans.