Sip this power breakfast which boasts more than 300 milligrams of calcium while getting ready for work or on your way there. A scoop of powdered milk boosts the calcium contributed by the yogurt and the calcium-fortified orange juice. Additional nutritional benefits come from potassium-rich banana and antioxidant-rich berries. Frozen berries ensure a thick, creamy consistency, but you can also use fresh ones. Other frozen fruits, such as peaches or mangoes, work well, too.