During digestion and absorption in human, water-soluble vitamins are absorbed in ____.

Water-soluble vitamins, such as Vitamin B complex and Vitamin C, are absorbed directly into the blood capillaries present in the intestinal villi.

Fat-soluble vitamins (A, D, E, and K) are incorporated into micelles, then into chylomicrons, and are absorbed into the lacteals (lymphatic vessels) in the villi.

Answer: blood capillaries in the villi.