The thing I always ask those who assert we can' t get enough calcium without dairy foods is ' Where do cows get their calcium?' The answer, of course, is green leafy vegetables. But you don' t have to eat grass - spinach, kale, broccoli, watercress, parsley and green cabbage are great sources of calcium as well as the magnesium needed to use it properly. Seeds and nuts are also rich in both calcium and magnesium. Finally, many products, like tofu, breakfast cereals and soya milk, are now fortified with calcium, so getting enough shouldn' t be a problem on a sensible vegan diet.