Since 1928 The Most Digestible Protein on The Planet Easy to Digest Dietary Supplement All Natural No Chemicals Gluten Free What is Caprotein? Caprotein is a premium quality whole protein powder produced from goat milk. It contains a natural ratio of both whey protein and casein. Caprotein is partially predigested via a process called lacto-fermentation. This process assists in the digestion and absorption of key nutrients while providing the body with beneficial probiotics and enzymes.Mt. Capra