The digested food is absorbed in the small intestine, mainly through the inner walls lined with tiny finger-like projections called villi. These villi greatly increase the surface area for absorption. Each villus contains blood capillaries and lymph vessels that transport nutrients. The digested nutrients such as glucose, amino acids, fatty acids, and glycerol pass through the intestinal wall into the bloodstream and lymph. From there, they are carried to different parts of the body for energy, growth, and repair.