THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The colon houses trillions of bacteria that protect our gut and produce vitamins. The bacteria in the colon produce substantial amounts of vitamins by fermentation. Vitamin K and B vitamins, including biotin, are produced by the colonic bacteria. These vitamins are then absorbed into the blood.

Detailed explanation-2: -The large intestine (colon) is responsible for reabsorption of water, sodium, potassium, and vitamin K. However, retrospective studies have shown that the large intestine also is responsible for absorption of small amounts of calcium and magnesium.

Detailed explanation-3: -"Vitamin C is absorbed in the small intestine, where there’s a group of different proteins there that can take it up, ‘’ explains Michels.