All: The perfect combination to keep you on track after bariatric surgery. Vitamin D3: Promotes strong bones and teeth by increg calcium absorption, supports proper immune function and healthy cell growth. Calcium Citrate: We use an optimal ratio of vitamin D3 & Magnesium to maximize Calcium benefits and improve your bone strength. Multivitamin with Iron: Bariatric Multivitamin with Iron has a complete blend of essential nutrients specifically designed to meet the unique vitamin and mineral needs post weight-loss surgeries. Contains: Multivitamin with Iron, Calcium Citrate, AND Vitamin D3.