SUPPLEMENT - MINERALS
Explore our effective micro-nutrients and premium ingredients
What is calcium and what does it do?
How much calcium do I need?
Birth to 6 months
Infants 7–12 months
Children 1–3 years
Children 4–8 years
Children 9–13 years
Teens 14–18 years
Adults 19–50 years
Adult men 51–70 years
Adult women 51–70 years
Adults 71 years and older
Pregnant and breastfeeding teens
Pregnant and breastfeeding adults
What happens if I don’t get enough calcium?
What are some effects of calcium on health?
Bone health and osteoporosis
Bones need plenty of calcium and vitamin D throughout childhood and adolescence to reach their peak strength and calcium content by about age 30. After that, bones slowly lose calcium, but people can help reduce these losses by getting recommended amounts of calcium throughout adulthood and by having a healthy, active lifestyle that includes weight-bearing physical activity (such as walking and running).
Osteoporosis is a disease of the bones in older adults (especially women) in which the bones become porous, fragile, and more prone to fracture. Osteoporosis is a serious public health problem for more than 10 million adults over the age of 50 in the United States. Adequate calcium and vitamin D intakes as well as regular exercise are essential to keep bones healthy throughout life.
Taking calcium and vitamin D supplements reduce the risk of breaking a bone and the risk of falling in frail, elderly adults who live in nursing homes and similar facilities. But it’s not clear if the supplements help prevent bone fractures and falls in older people who live at home.
Studies have examined whether calcium supplements or diets high in calcium might lower the risks of developing cancer of the colon or rectum or increase the risk of prostate cancer. The research to date provides no clear answers. Given that cancer develops over many years, longer term studies are needed.
Some studies have found that getting recommended intakes of calcium can reduce the risk of developing high blood pressure (hypertension). One large study in particular found that eating a diet high in fat-free and low-fat dairy products, vegetables, and fruits lowered blood pressure.
Preeclampsia is a serious medical condition in which a pregnant woman develops high blood pressure and kidney problems that cause protein to spill into the urine. It is a leading cause of sickness and death in pregnant women and their newborn babies. For women who get less than about 900 mg of calcium a day, taking calcium supplements during pregnancy (1,000 mg a day or more) reduces the risk of preeclampsia. But most women in the United States who become pregnant get enough calcium from their diets.
Although several studies have shown that getting more calcium helps lower body weight or reduce weight gain over time, most studies have found that calcium—from foods or dietary supplements—has little if any effect on body weight and amount of body fat.
For more information on calcium and weight loss, see our consumer fact sheet on Weight Loss.
Can calcium be harmful?
Getting too much calcium can cause constipation. It might also interfere with the body’s ability to absorb iron and zinc, but this effect is not well established. In adults, too much calcium (from dietary supplements but not food and beverages) might increase the risk of kidney stones. Some studies show that people who consume high amounts of calcium might have increased risks of prostate cancer and heart disease, but more research is needed to understand these possible links.
Where can I find out more about calcium?
1. Institute of Medicine. Dietary Reference Intakes for Calcium and Vitamin D. Washington, DC: The National Academies Press; 2011.
2. Heaney RP. Calcium. In: Coates PM, Betz JM, Blackman MR, et al., eds. Encyclopedia of Dietary Supplements. 2nd ed. London and New York: Informa Healthcare; 2010:101-6.
3. Weaver CM, Heaney RP. Calcium. In: Ross AC, Caballero B, Cousins RJ, Tucker KL, Ziegler TR, eds. Modern Nutrition in Health and Disease. 11th ed. Baltimore, MD: Lippincott Williams & Wilkins; 2014:133-49.
4. Weaver CM. Calcium. In: Marriott BP, Birt DF, Stallings VA, Yates AA, eds. Present Knowledge in Nutrition. 11th ed. Cambridge, Massachusetts: Wiley-Blackwell; 2020:321-48.
5. Wawrzyniak N, Suliburska J. Nutritional and health factors affecting the bioavailability of calcium: a narrative review. Nutr Rev 2021. [PubMed abstract]
6. Health information data from U.S. National Institutes of Health
Better than others
Nine medical doctors used their research findings to develop Dr’s Grow UP in the biotech lab. The result is a product containing 22 ingredients mixed in the perfect proportions to maximize bone health and height development.
Why Bone Science?
Carrying out extensive research and keeping up-to-date with the latest scientific findings is our key to develop superior formulations.
Best Growth Support for Kids & Teenagers
Our products contain essential ingredients for a healthy bone and height development of kids from 10 years and teenagers.
Fighting Aging Effects
We are dedicated to create formulations that delay and restrict the extent of adult’s bone density decrease.
Unmatched Product Quality
Only 100% natural ingredients that contain no soy, no gluten, no GMOs, no maltodextrin, and no artificial flavors, colors, or preservatives.
All of our products are manufactured in the US in an FDA and NSF cGMP registered facility.