Collagen touts all kinds of practical health benefits—strong nails, thick hair, firmer skin and better joint function. Much like gelatin, it is typically derived from beef or pork bones or the shells of crustaceans. In recent years, collagen has gained popularity as an easily soluble and digestible source of lean protein. One tablespoon boasts an impressive 6 grams of protein, which means it packs a major nutritional punch. Let us help you find the right supplement for your needs.