The best time to take a calcium supplement depends on several factors, such as the type of calcium, according to Mayo Clinic. If the calcium supplement contains calcium carbonate, it is best to take it with food, as stomach acid increases its absorption.Continue Reading
It is suitable to take supplements that contain calcium citrate with or without food, notes Mayo Clinic.
The body best absorbs calcium in units of around 500 mg or less at a time. This means a dose of 1,000 mg should be split up. Additionally, since iron, zinc and magnesium may interfere with the absorption of calcium, it is best to take calcium supplements at a different time than a multivitamin or a meal rich in iron.Learn more about Vitamins & Supplements