It should be side chain, by looking at a diagram online, idk if im right, but it looks logical.
Answer:
Fats
Explanation:
Fats are absorbed through the wall of the villi and enter the lacteal, tiny lymph vessels called lymph capillaries, where they form part of a fluid called chyle, a milky fluid consisting of lymph, fats, and free fatty acids. Lymphatic vessels then transport these fats into the bloodstream.