does glp 1 occur naturally in the body Your Produce GLP-1? What You Need to Know The Multifaceted Nature of GLP-1:

Tryptophan oxidation is the degradation route most commonly detected by RP-HPLC in stored melanocortin analogues, with tyrosine at position 2 and histidine at position 6 secondary sites of concern, and freeze-thaw cycling accelerates both aggregation and oxidative degradation

J.TanabeK.FuchsJ.DehlkeK.GhamarnejadO.et al (2020)

But dont worry

This is because the FDA has noted that the current data isnt enough to fully understand the potential risks

While the vast majority of GLP-1 axons in the spinal cord evidently originates from lower brainstem neurons 9,20 , PPG-promoter driven transgene expression suggested that GLP-1 may be produced locally by a small population of neurons 20

doi: 10.1016/j.vaccine.2016.08.015 40 BretscherA