Zinc, magnesium and copper in serum of women given a calcium supplement.

Earlier investigators have demonstrated in animal studies interrelationships between mineral elements. Serum zinc, magnesium and copper were monitored over a two year period in 120 women between the ages of 40 and 55 years. One group (65 women) was supplemented with calcium, the other served as a control. We concluded that calcium supplementation at a level of 1,500 mg Ca mainly does not affect serum zinc, magnesium and copper, however, serum copper concentration is elevated in women taking medication for hypertension.