Defy bone aging calcium citrate and a high level of vitamin D3. One serving has 400mg calcium to help support bone health and 12.5mcg (500IU) vitamin D3 to help with calcium absorption. Citracal Petites come in smaller, easier to swallow caplets are made with calcium citrate, a different kind of calcium. It's highly soluble, easily absorbed and can be taken with or without food. Sugar free. No. 1 doctor and pharmacist recommended calcium brand.