Details: Kirkland Signature Calcium 600 mg with Vitamin D3 is an important part of your daily regimen. Taking one tablet two times a day with a meal provides a daily intake of 1200 mg of calcium and 20 mcg (800 IU) of Vitamin D3. Calcium is a key mineral that supports many functions in the body. Vitamin D supports the action of calcium, so they work synergistically.
