Say hello to the pour that gives you more with Silk Protein Complete Plant Protein Milk. A high protein plant-based milk, it contains 13g complete plant protein per serving to help keep you full and help support muscle health. Unlike some other plant-based protein sources, Silk Protein is a complete plant protein, meaning it delivers all 9 essential amino acids your body can’t make on its own in adequate amounts, as well as 3g dietary fiber per serving.