| | Conditions Treatments | Digestive Health In which digestive system does the blood absorb nutrients? Your question appears to contain a misunderstanding. The process of nutrient absorption mainly occurs in the small intestine, not in the bloodstream. Digestive Health - Related Articles Ibuprofen Medication Directions Herbs for Gout Homemade Flu Remedies How many times do you inhale and exhale daily? How to Find Water in an Emergency How to Know if You Pulled Your Hamstring Why is red-green color blindness not contagious?