But just because you have a gym membership that you actually use doesnât mean you canât also have a few things at home for doing other types of workouts that you donât have time for at the gym, or for those days that you just canât make it out the front door.
The inside wall of the small intestine needs to be thin, with a really big surface area. This allows absorption to happen quickly and efficiently. If the small intestine had a thick wall and a small surface area, a lot of digested food might pass out of the body before it had a chance to be absorbed.
Fat-Soluble Vitamins. The cells in your small intestine easily absorb water-soluble vitamins, which include vitamin C and all the vitamins in the B complex, including B6, B12, folate, biotin, riboflavin, thiamine, niacin and pantothenic acid.These vitamins enter the bloodstream and any amounts unused get excreted from the body.ecause of this, water-soluble vitamins need continual replacement. Vitamin K and the other fat-soluble vitamins, including A, D and E, require the presence of fat for absorption.