If you're not including enough calcium-rich foods (e.g. dairy products) in your diet, supplementation may be necessary. But not all supplements are created equal.
A number of calcium supplements are available, containing different calcium compounds or salts. Take a look at the percentages of elemental calcium that are present in these different compounds: calcium carbonate – 40 %; calcium phosphate – 30-40%; calcium citrate – 24%; calcium citrate malate – 24%; calcium lactate – 13%; calcium gluconate – 9%. Read supplement labels carefully to make an informed choice in terms of calcium content.
Read more: Calcium supplements