Calcium citrate is the highest absorbable form of calcium. Unlike calcium carbonate supplements which might cause mild constipation or bloating, calcium citrate can be absorbed by the body on its own and does not require stomach acid.
Having the right amount of calcium is important for strong and healthy bones. When calcium levels in the body are low, your body will start to take calcium from your bones, reducing your bone density and increasing your risk of fracture. Calcium citrate can be used to treat people with low calcium levels or as a treatment for bone-loss conditions such as osteoporosis or rickets.
Calcium citrate can be taken with or without food, and is especially suited for individuals who have sensitive stomachs (e.g. experiencing heartburn, IBS, IBD or absorption disorders). To maximise the absorption rate of calcium citrate, take calcium citrate and magnesium in a 2 (500mg or less) : 1 (250mg or less) ratio at mealtimes.