What Nutrients Are Absorbed by Capillaries?
                                
                                
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                                    4 min read                                
                            
                                Approximately 90% of all nutrient absorption happens in the small intestine, where a vast network of capillaries and other structures facilitates the uptake of essential molecules. Understanding what nutrients are absorbed by capillaries is a fundamental step toward knowing how your body extracts and distributes fuel from the food you eat.