Calcium: The "Miracle" Mineral

Stroke Prevention

A 1999 Harvard study reported that calcium supplementation protects against stroke in middle-aged women. In the ongoing Nurses' Health Study, 85,764 women, ages 35 to 59, reported that the mineral was tied to a 32% lower risk of stroke among those with the highest intake of the mineral. Women taking at least 400 mg of calcium supplements had a 12% lower risk of ischemic stroke (the type caused by plaque buildup in blood vessel walls). Dietary calcium, especially in dairy foods, reportedly reduced stroke risk, as did potassium.

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