First and foremost, you don't need three servings of dairy to meet your calcium requirement. Secondly, milk is not the only source of calcium. There are other nutrient-rich foods that give you stellar amounts of calcium for your body. Read on:
Roasted Sesame Seeds
It is believed that 1 ounce of these seeds give you 277 mg of calcium.
Sprouted Soybean
Have half a cup of these and you get 230 mg of calcium.
Salmon
The good old salmon with bones offers you 212 mg of rich calcium.
Tofu
Have half a cup of tofu daily and you get a stellar 253 mg of rich calcium.
Kale
188 mg of calcium is what you get from 2 cups of this wonder superfood.
Almonds
While it may not give you as high an amount of calcium like the others in the list, but a handful of almonds give you approximately 72 mg of calcium.