A peptide may contain a portion of protein chemically identical to something our bodies naturally produce, but theres often other components that are added to that molecule as well, Gelber said, to aid in absorption, its mechanism of action or to prevent degradation
Because glutathione is so central to our biology, the signs of a deficiency can be subtle and often mimic general "burnout." Many people don't realize their levels are low until they start a routine that actually restores them
Gastroenterology 98 , 694702
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doi: 10.1016/j.biopsych.2009.07.018