Best Answer: Probably the same as any other major... probably even shorter than some (such as pre-med), so 4 years. For my school, you need Intro, Research Methods ...
Digestion of foods in the small intestine. The small intestine continues the process of digestion and various enzymes are present there to break starches down further. These enzymes are called disaccharidases. The best known is lactase, which is the enzyme necessary to digest milk sugar. This enzyme is normally present in all young mammals who need this to digest mother's breast milk. With age and as breast feeding finishes, production of this enzyme ceases for life.
Lactase Digestion and Digestive Enzymes. For those with lactose intolerance, you may be all too familiar with what we picked from our digestive enzymes, lactase. Lactase digestion helps you process the lactose in dairy, helping to prevent bloating, gas, constipation, diarrhea, and cramping that happens to many who ingest milk products. Lactose intolerance is not an allergy, it is about a missing enzyme necessary for the proper digestion of dairy.