补钙的产品众多,建议老年人选择易吸收的液体钙或珊瑚钙!Now Foods, Coral Calcium, 1000 mg, 100 VcapsNature's Way, Coral Calcium, 180 VcapsNature Made, Calcium with Vitamin D, 600 mg, 100 Liquid Softgels(液体)