Eat a Diet Rich in Calcium
by Karen Schroeder Kassel, MS, RD, MEd
Calcium is the most prevalent mineral in the human body. It plays an important role in maintaining good health. For example:
The recommended intakes for calcium are:
Food Sources of Calcium
Dairy foods—milk, yogurt, and some cheeses—are the best dietary sources of calcium. These foods are also rich in vitamin D, which helps the body absorb calcium.
Absorption of calcium from some other dietary sources is not as great as that from dairy foods. Specifically, dark green vegetables contain oxalates, and grains contain phytates, which can bind with calcium and decrease their absorption. However, these foods still provide a good way to add calcium to your diet. Some examples of green vegetables that are good calcium sources are kale, broccoli, and Chinese cabbage.
Read the Nutrition Facts label on tofu and fortified products to determine specific calcium levels of these foods.
Tips for Increasing Your Calcium Intake
Dealing with Lactose Intolerance
Some people have difficulty digesting lactose, which is the main sugar in milk and some dairy products. This occurs when the body does not produce enough of the enzyme lactase to properly digest lactose. People with this condition, called lactose intolerance, may experience nausea, cramping, bloating, abdominal pain, gas, and diarrhea. This can occur anywhere from 15 minutes to several hours after eating milk or milk products.
If you have lactose intolerance, take the following steps to be sure you meet your calcium needs:
If you are unable to meet your calcium needs through dietary sources, ask your doctor if you should take a calcium supplement. The 2 main types of supplements are carbonate and citrate. Calcium carbonate (Tums and Rolaids) is best taken with food. Calcium citrate can be taken with or without food, and may have better absorption in people older than 50 years old. Some points to remember when choosing and using a calcium supplement include:
Eat Right—Academy of Nutrition and Dietetics
Office of Dietary Supplements
Dietitians of Canada
Calcium. Linus Pauling Institute at Oregon State University website. Available at:
...(Click grey area to select URL)
Updated August 4, 2015. Accessed March 22, 2017.
Calcium. Office of Dietary Supplements, National Institutes of Health website. Available at:
...(Click grey area to select URL)
Updated November 17, 2016. Accessed March 22, 2017.
Calcium and vitamin D for treatment and prevention of osteoporosis. EBSCO DynaMed Plus website. Available at: https://www.dyname.... Updated December 21, 2015. Accessed March 22, 2017.
Heaney RP. Calcium intake and disease prevention. Arq Bras Endocrinol Metabol. 2006;50:685-693.
Hofmeyr G, Duley L, et al. Dietary calcium supplementation for prevention of pre-eclampsia and related problems: A systematic review and commentary. BJOG. 2007;114(8):933-943.
Lactose intolerance in adults. EBSCO DynaMed Plus website. Available at: https://www.dyname.... Updated November 17, 2017. Accessed March 22, 2017.
Pittas AG, Lau J, et al. The role of vitamin D and calcium in type 2 diabetes. A systematic review and meta-analysis. J Clin Endocrinol Metab. 2007;92(6):2017-2029.
Straub DA. Calcium supplementation in clinical practice: A review of forms, doses, and indications [review]. Nutr Clin Pract. 2007;22:286-296.
Tips for making wise choices in the dairy group. USDA Choose My Plate website. Available at: https://www.choosemyplate.gov/dairy-tips. Updated June 26, 2015. Accessed March 22, 2017.
7/6/2006 DynaMed Plus Systematic Literature Surveillance https://www.dynamed.com/topics/dmp~AN~T113815/Osteoporosis: Villar J, Abdel-Aleem H, et al. World Health Organization randomized trial of calcium supplementation among low calcium intake pregnant women. Am J Obstet Gynecol. 2006;194(3):639-649.
7/6/2009 DynaMed Plus Systematic Literature Surveillance https://www.dyname...: Kumar A, Devi SG, et al. Calcium supplementation for the prevention of pre-eclampsia. Int J Gynaecol Obstet. 2009;104(1):32-36.
Last reviewed March 2017 by Michael Woods, MD, FAAP
Last Updated: 3/9/2015