Food is the best calcium source. Most experts agree food is the best source of calcium as there may be other factors found in calcium rich foods that also affect use by the body. Spread calcium intake throughout the day. Your body can best handle about 500 mg of calcium at one time, whether from food or supplements. Avoid excess caffeine.
Excessive caffeine can increase urinary excretion of calcium.
Consume less than 400 mg of caffeine per day. A six-ounce cup of coffee has about 100 mg of caffeine. Avoid excessive sodium. Excessive sodium also increases urinary excretion of calcium. Limit sodium intake to 2,400 mg a day.