Overview Natural Factors Calcium & Magnesium Plus Potassium & Zinc helps in the development and maintenance of bones and teeth. Medicinal ingredients Each tablet contains: Elemental calcium (carbonate/citrate) 250 mg Elemental magnesium (citrate/oxide) 250 mg Elemental potassium (citrate) 20 mg Elemental zinc (citrate) 5 mg Silicon (Equisetum arvense) (aerial) 50 mcg Non-medicinal ingredients Microcrystalline cellulose, coating (carbohydrate gum [cellulose], glycerin), vegetable grade magnesium stearate (lubricant). Suggested Use Helps in the development and maintenance of bones and teeth. Calcium intake, when combined with sufficient vitamin D, a healthy diet and regular exercise, may reduce the risk of developing osteoporosis.