Your Body is Missing This Key Amino Acid—And It’s Accelerating Aging Did you know that your body falls short when it comes to producing enough glycine for collagen synthesis? While glycine is technically a non-essential amino acid, research shows that we only produce about 3 grams per day—but we need at least 10 grams daily to support collagen production for healthy skin, joints, and connective tissues. The problem? Most modern diets lack glycine-rich foods like bone broth, organ meats, and skin