6 Glycine Health Benefits: The Amino Acid that Helps You Sleep, Detox Our ancestors ate whole animals. Skin, cartilage, tendons, bones, organs. That meant they consumed massive amounts of glycine from collagen rich tissues. Modern humans eat almost exclusively muscle meat, which is extremely high Yes glycine can be a surprisingly inexpensive, effective alternative to many overpriced collagen powders, but with some important nuances. Here's a clear breakdown of what glycine is, how it compares to What is Glutathione? GoldBio NAC + Glycine Powder Solutions 4 Health