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.
Digestion can also slow down or speed up with age, which is why people notice more digestive disturbances as they get older. Grand says that many people with low lactase can still digest some milk because bacteria in their large intestines take over the task of digesting lactose. For those who feel they truly canât digest it, he recommends calcium and vitamin D supplements to prevent deficiencies.