Where are glucose fatty acids and amino acids absorbed into the blood?

Glucose, fatty acids, and amino acids are primarily absorbed into the blood in the small intestine. Specifically, glucose and amino acids are absorbed through the intestinal villi into the bloodstream via active transport mechanisms, while fatty acids are absorbed into the lymphatic system and eventually enter the bloodstream through the thoracic duct. This absorption allows essential nutrients to be delivered to cells throughout the body for energy and growth.