Only 3 out of 20 amino acids should be considered non-essential, and GLYCINE is not one of them
Current medical science calls glycine “non-essential” because our body can make it. At this moment, I think about 12 amino acids are said to be non-essential. But modern science is not a set, fixed body of unshakeable knowledge, and Dr. Alan Jackson from Southampton University says there are in fact only 3 really “non-essential” amino …