Glycine
Glycine is the simplest and most abundant non-essential amino acid in the human body, naturally found in high concentrations in collagen-rich foods such as bone broth, meat, and fish, and playing a remarkably diverse and fundamental role in maintaining overall health and physiological function. As a primary building block of collagen, it is indispensable for the structural integrity of skin, joints, bones, and connective tissues throughout the body. Glycine is most celebrated for its powerful calming effects on the nervous system, promoting deep and restorative sleep, reducing anxiety, and supporting healthy neurotransmitter balance. It also supports liver detoxification, regulates blood sugar, promotes muscle repair, and contributes to cardiovascular and cognitive health.