Which substance helps absorb certain vitamins in the digestive system?

Fat plays a crucial role in the absorption of certain vitamins in the digestive system, specifically the fat-soluble vitamins: A, D, E, and K. These vitamins require the presence of dietary fat to be effectively absorbed through the intestinal walls. When fat is consumed, it stimulates the release of bile from the liver, which helps emulsify the fats in the food, allowing the fat-soluble vitamins to dissolve and be absorbed more efficiently.

Without adequate dietary fat, the absorption of these essential vitamins can be significantly impaired, leading to deficiencies that can affect various bodily functions, such as vision, immune response, and bone health. Therefore, including healthy fats in the diet is vital not only for energy but also for the optimal absorption of these important vitamins.