1ounce of these seeds can give you 277mg of calcium.
1/2 cup of these can give you 230 mg of calcium.
1/2 cup tofu daily can give you 253 mg of rich calcium.
Salmon with bones offers you 212 mg of rich calcium.
A handful of almonds give you 72 mg of calcium although not as high an amount of calcium.
2 cups of this superfood give you 188 mg of calcium.