Shop › Calcium & Magnesium Plus Image 1 of 2 Image 2 of 2 Calcium & Magnesium Plus $33.00 Add To Cart Added! As a dietary supplement, adults take 1 tablet, 2 times daily with food, or as directed by a healthcare professional. As a dietary supplement, adults take 1 tablet, 2 times daily with food, or as directed by a healthcare professional.