what are food sources of calcium?
['milk, cheese and other dairy foods.', 'green leafy vegetables – such as broccoli, cabbage and okra, but not spinach.', 'soya beans.', 'tofu.', 'soya drinks with added calcium.', 'nuts.', 'bread and anything made with fortified flour.', 'fish where you eat the bones – such as sardines and pilchards.']