The link between calcium and blood pressure was noticed years ago when researchers realized people drinking hard water had less high blood pressure than those drinking soft water. Hard water contains more minerals, including calcium.

Individuals receiving more than 800 mg of calcium daily have a 23 percent decreased risk of hypertension versus those consuming less than 400 mg of calcium per day.

Back in 1996, scientists compiled all the research to date on calcium and hypertension. The results showed calcium supplements given to individuals with high blood pressure lowered systolic blood pressure (top number) an average of 4.3 mm Hg and diastolic blood pressure (bottom number) 1.5 mm Hg.

Some people respond better to supplemental calcium than others. Those with the best results include African-Americans, elderly, pregnant women, menopausal women, people with salt-sensitivity, individuals with a high sodium intake, and those with Type II diabetes.

For the best results, don’t rely on a supplement alone. Work to increase your intake of calcium containing foods – dairy. To promote heart health, select low fat dairy products, such as low fat milk, cheeses, and yogurts.

Additional calcium sources:

Leafy greens (i.e. kale, collard, turnip, mustard greens)
Canned Salmon
Calcium fortified Orange Juice
Tofu (if made with calcium carbonate)

For even better results, supplement calcium along with vitamin D. One study supplemented women 1200 mg of calcium to reduce blood pressure. When they added 800 IU of vitamin D, systolic blood pressure decreased an average of 9.3 percent.

Don’t forget three other minerals affect how effective calcium – potassium, magnesium, and sodium. For calcium to have the greatest positive effect on blood pressure, your levels of these three nutrients need to be adequate as well.

Author's Bio: 

Be sure to sign up for the free e-course 7 Natural Ways to Lower Blood Pressure at today! Lisa Nelson RD, founder and owner of Heart Health Made Easy and Health Expert for The Health Central Network, is dedicated to guiding clients to heart health through practical diet and lifestyle changes.