Micelles help in the absorption of

Micelles help in the absorption of fatty acids and fat-soluble vitamins.

Micelles are formed due to the amphipathic nature of bile salts: The hydrophobic regions of bile salts interact with the fatty acids and monoglycerides, and the hydrophilic regions of bile salts interact with the watery intestinal chyme. Once formed, the micelles move from the interior of the small intestinal lumen to the brush border of the absorptive cells. At that point, the fatty acids and monoglycerides diffuse out of the micelles into the absorptive cells, leaving the micelles behind in the chyme. Micelles also solubilise other large hydrophobic molecules such as fat-soluble vitamins (A, D, E, and K) and cholesterol that may be present in intestinal chyme, and aid in their absorption.