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Product Overview
Kirkland Signature Calcium 600 mg + D3 helps supports strong bones. The addition of vitamin D helps your body to absorb calcium better.†- May reduce the risk of osteoporosis.†
- Vitamin D helps improve calcium absorption.†
- Calcium supports the growth of strong bones and teeth.†
Calcium is the most plentiful mineral in the body and is essential in processes such as nerve transmission, intracellular signaling, hormonal secretion, and vascular and muscle function.1 The large majority of the body’s calcium is stored in bones and teeth to help keep their structural strength and to establish reserves to conserve levels in the blood, muscles, and intracellular fluid.2 3
Recommended Daily Allowances (RDA) for calcium were established by the Institute of Medicine (IOM) based on age and gender. Men between 19-70 years old require 1,000 mg calcium daily, whereas men over 71 years need 1,200 mg per day. Women between the ages of 19-50 years old need 1,000 mg calcium per day and those over 50 years old need 1,200 mg per day.4 The Tolerable Upper Intake Level (UL) of calcium for men and women older than 18 years of age is 2,500 mg per day.4
Rich sources of calcium include dairy products, such as cheese, milk, and yogurt. Leafy greens, like kale, broccoli, and spinach also provide calcium in moderate amounts, but they contain other elements that may block calcium absorption. Oxalic acid or oxalate strongly inhibits calcium absorption and can be found in spinach and rhubarb. Foods fortified with calcium include fruit juices, tofu, and cereals.
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Suggested Use: Take one tablet two times daily, preferably with a meal.
Ingredients: Calcium Carbonate, Cellulose Gel, Maltodextrin, Croscarmellose Sodium, Magnesium Stearate, Titanium Dioxide (artificial color), Polyethylene Glycol, Triethyl Citrate, Polysorbate 80, Corn Starch, Gelatin, Yellow 6 Lake, Vitamin D3 (Cholecalciferol).
CAUTION: If you are pregnant, nursing, or taking any medications, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur.
No Artificial Flavors. No Preservatives. No Yeast or Gluten.
Vitamin Infoline 1-800-428-7782
Keep out of the reach of children.
Store at room temperature, tightly closed.
Avoid excessive heat. 
This item is verified by the United States Pharmacopeia (USP) which is an independent, scientific, non-profit organization that sets strict quality and purity standards for dietary supplements manufactured and distributed worldwide. The USP’s drug standards are enforceable in the United States by the Food and Drug Administration.
Since 1995, the Kirkland Signature brand has been providing high quality supplements at a great member value. Kirkland Signature vitamins, minerals, and supplements are made from carefully selected ingredients from trusted suppliers. The supplements are manufactured in accordance with the Good Manufacturing Practice standards. Additionally, many of the items are verified by the United States Pharmacopeia (USP) which is an independent, scientific, non-profit organization that sets strict quality and purity standards for dietary supplements.
More Kirkland Signature™ Products
- 1 Awumey EM, Bukoski RD. Cellular Functions and Fluxes of Calcium. In Weaver CM & Heaney RP, eds. Calcium in Human Health. New Jersey Humana Press. 2006.p.13-35.
- 2 Heaney RP. Bone as the Calcium nutrient reserve. In Weaver CM & Heaney RP, eds. Calcium in Human Health. New Jersey: Humana Press.
- 3 Flynn A. The role of dietary calcium in bone health. Proc Nutr Soc. 2003;62:851-8.
- 4 Institute of Medicine. Dietary Reference Intakes for Calcium and Vitamin D. Washington, DC: The National Academies Press; 2011.
- Brand: Kirkland Signature
