Contains all key vitamins and minerals needed to support optimal bone growth and development – not just calcium and vitamin D. Calcium from Aquamin® naturally sourced from red algae Lithothamnion coralliodes – rich in trace minerals & better absorption than calcium carbonate. Superior nutrient forms that are highly bioavailable. High quality, research-backed bone nutrition formula. Vitamin K-free (safe with blood thinners). Delicious natural vanilla flavour.