Does calcium absorption differ between soymilk and cow’s milk?
No, recent research shows that calcium absorption from calcium-fortified soymilk is the same as that from cow’s milk. (7) Fortified soymilk usually contains more calcium than cow’s milk and is a significant source of calcium in the diets of non-dairy drinkers. Studies have also found that in comparison with animal protein, soy protein decreases calcium excretion, presumably due to the lower sulfur amino acid content of soy protein. Consequently, a soy-based diet allows one to maintain calcium balance with a lower calcium intake. (3 – 7) Learn more about soymilk and calcium.