by Kassel K

Here's Why:

calcium Calcium is the most prevalent mineral in the human body. It plays an important role in maintaining good health. For example:

  • Calcium is essential to build and maintain strong bones at all stages of life, and therefore help prevent and/or manage osteoporosis. Calcium may also help with weight loss. In addition, research suggests that calcium and vitamin D supplementation may help to optimize blood glucose metabolism.
  • Calcium helps reduce your risk for these serious health conditions:

The recommended intakes for calcium are:

Age Adequate Intake
0-6 months 200
7 months-1 year 260
1-3 years 700
4-8 years 1,000
9-18 years 1,300
19-50 years 1,000
Men 51-70 years 1,000
Men 71 years or older 1,200
Women 51 years and older 1,200
Pregnant and breastfeeding teens 1,300
Pregnant and breastfeeding adults 1,000

Here's How:

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.

Food Portion size Amount of calcium
Yogurt, plain low fat 1 cup 415
Milk, 2% 1 cup 285
Parmesan cheese, grated 1 tablespoon 55
Eggnog, nonalcoholic 1 cup 330
Chocolate milk, low fat 1 cup 288
Ricotta cheese, part skim ½ cup 335
Powdered milk 1/3 cup 283
Cheddar cheese 1 ounce 204
Swiss cheese 1 ounce 224
Provolone cheese 1 ounce 214
Cheese pizza 1 serving 113
Mozzarella cheese, part skim 1 ounce 207
American cheese 1 ounce 156
Cottage cheese, low fat 2% 1 cup 156
Frozen yogurt, soft serve ½ cup 103
Ice cream ½ cup 84

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.

Food Portion size Amount of calcium
Carnation breakfast bars 1 packet 250
Tofu, regular, processed with calcium salt ½ cup 253
Calcium-fortified soy milk 1 cup 200-400
Salmon, canned with edible bones 3 ounces 181
Calcium-fortified orange juice 1 cup 300
Calcium-fortified dry cereal ½-1 cup 100-1,000
Blackstrap molasses 1 tablespoon 135
Pudding, ready to eat ½ cup 55
Dried figs 1 cup 300
Sardines with edible bones, in oil 3 ounces 325
Turnip greens, boiled ½ cup 100
Okra, boiled 1 cup 100
Temphe ½ cup 75
Kale, cooked 1 cup 94
Mustard greens, cooked 1 cup 40
Orange 1 medium 60
Pinto beans, cooked ½ cup 39
  • When making oatmeal or other hot cereal, use milk instead of water.
  • Add powdered milk to hot cereal, casseroles, baked goods, and other hot dishes.
  • Make your own salad dressing by combining low-fat plain yogurt with herbs.
  • Add tofu (processed with calcium) to soups and pasta sauce.
  • If you like fish, eat canned fish, such as salmon or sardines, with soft bones on crackers or bread.
  • For dessert, try low-fat frozen yogurt, ice cream, or pudding.
  • In baked goods, replace half of the fat with plain yogurt.

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:

  • Eat smaller portions of dairy foods. It is possible that you can tolerate more dairy products if they are consumed with food. Many people find that they are able to tolerate ½ cup or ¾ cup of milk at a time, several times during the day, rather than 1 cup or more in one sitting.
  • Choose aged cheeses, such as Swiss, Colby, Parmesan, and cheddar, which have most of their lactose removed during processing.
  • Try dairy foods made with live, active cultures, such as yogurt and buttermilk. The "friendly" bacteria in these foods help to digest the lactose. These foods should have a "Live and Active Cultures" label.
  • Be sure to include nondairy sources of calcium in your daily diet.

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:

  • Since the amount of calcium differs among products, check the label.
  • Check your vitamin D intake too. This vitamin is essential for absorption of calcium. Milk is a great source of vitamin D, as is sunlight.
  • If you take both calcium and iron supplements, take them at different times of the day, because they can impair each other's absorption.
  • If you take more than 500 mg of supplemental calcium, space it out throughout the day; it is better absorbed that way.


Eat Right—Academy of Nutrition and Dietetics 

Office of Dietary Supplements 


Dietitians of Canada 

Healthy Canadians 


Calcium. Linus Pauling Institute at Oregon State University website. Available at: Updated August 4, 2015. Accessed March 22, 2017.

Calcium. Office of Dietary Supplements, National Institutes of Health website. Available at: Updated November 17, 2016. Accessed March 22, 2017.

Calcium and vitamin D for treatment and prevention of osteoporosis. EBSCO DynaMed Plus website. Available at: . 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: . 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: Updated June 26, 2015. Accessed March 22, 2017.

7/6/2006 DynaMed Plus Systematic Literature Surveillance : 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 : Kumar A, Devi SG, et al. Calcium supplementation for the prevention of pre-eclampsia. Int J Gynaecol Obstet. 2009;104(1):32-36.

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