Fortunately, lactose-reduced milk and dairy products are now available, as well as lactase tablets that can be taken with dairy products. High intakes of calcium may interfere with magnesium, which is important in building the bone matrix that helps bone absorb shock. If you take calcium supplements, consider those which contain magnesium. In excess amounts, sodium increases urinary calcium loss. If your sodium intake is higher, you probably need more calcium.
Vitamin D enables the absorption of calcium.
To absorb calcium, you must get 400 IU of vitamin D a day from fortified foods and supplements. Because sunlight is required for the body to synthesize Vitamin D, people who live in northern areas may have deficiencies even if they get enough calcium. Milk is fortified with vitamin D to guard against this problem. Calcium Supplements Calcium is not a cure for osteoporosis, but it is essential for enhancing bone health in everyone, including people who already have the disease. There are several types of calcium supplements available.