What Is Bile?
6. Absorption of Fat-Soluble Vitamins
Fat-soluble vitamins, which are characterized into the four major groups of vitamins A, D, E, and K, are important for human health. These vitamins are obtained from the environment and food. These vitamins are essential in various biological functions.
In order for the body to absorb them, the digestive system needs the emulsification actions of bile acids. As stated earlier, bile acids are synthesized from cholesterol and secreted into the small intestines. When these acids are present in high concentration, they act to emulsify fats and enable vitamin absorption into the body. Although it is known that bile acids are necessary for the absorption of fat-soluble vitamins, it is not known whether these vitamins affect the production of bile acids.
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