The recommended amount for older people is 1,200 milligrams. Getting much more than that amount didn't result in any greater protection but those who got quite less than the 1200 mg had a higher rate of cancer.
Here are some calcium-rich foods:
Yogurt
Milk
Cheese, including American, ricotta, cheddar cheese and mozzarella cheese
Ice cream
Eggnog
Salmon
Tofu
Rhubarb
Sardines
Collard greens
Spinach
Turnip greens
Okra
White or baked beans
Broccoli
Peas
Brussel sprouts
Sesame seeds
Bok choy
Almonds
Calcium-fortified breakfast cerealCalcium-fortified orange juice
Calcium-fortified soy milk
SunnyD with Calcium
Instant oatmeal
Calcium-fortified bread or English muffins
Calcium-fortified drink mixes
'''''''''