Insta Keto Reviews - biotin, riboflavin, niacin, cobalamin and vitamin K. Therefore, after removing part of the small intestine, these vitamins will be absorbed to some extent in this place (read more about the adaptation mechanism).On the other hand, removal of the ileocecal valve during surgery can cause dislocation of bacterial flora, bacterial growth, and exacerbate the symptoms of short bowel syndrome.The small intestine, at each episode, plays a very important role in digesting and absorbing nutrients from food.