- The breakdown of protein begins in the mouth as we chew our food
- Maximum protein digestibility comes from animal sources rather than vegetable sources
- Insoluble fibers are plant fibers which the body cannot break down for digestion
- Undeveloped countries have lower protein digestibility from a diet of whole grains and legumes as an only source of protein
- Protein supplements as in whey, soy, egg, and casein supplements will measure up to protein digestibility over other food sources of protein
- Powdered supplements of protein and their amino acids are readily absorbed and easily digested
