Final answer:
The liver produces bile, which is a digestive enzyme that helps break down lipids in the small intestine. It also reduces the acidity of the food from the stomach for optimal enzyme function.
Step-by-step explanation:
The liver produces a digestive enzyme called bile. Bile is a fluid that is secreted into the small intestine through a duct. Its main function is to break down large globules of lipids into smaller ones, which are easier for enzymes to chemically digest. Bile also reduces the acidity of the food entering the small intestine from the stomach to create a less acidic environment for the digestive enzymes to function.