VEGETARIAN FORMULA - Nu U Nutrition's Calcium, Magnesium, Zinc & Vitamin D3 Complex tablets are suitable for vegetarians. With 800 mg of calcium, 400 mg of magnesium, 10 mg of zinc, 1 mg of copper, and 400 IU of vitamin D3, the formula is designed to optimise nutrient synergy - most notably, vitamin D contributes to the normal absorption and utilisation of calcium.