Before you can open a SHP file, you'll need to figure out what kind of file the SHP file extension refers to. Tip: Incorrect SHP file association errors can be a symptom of other underlying issues within your Windows operating system.
RDA for Calcium. According to the Institute of Medicine, the recommended dietary allowance for calcium for healthy males between the ages of 19 and 70 years is 1,000 milligrams per day. The recommendations increase to 1,200 milligrams for males after age 70. Vitamin D is also essential for absorption of calcium, and the RDA for vitamin D for men between ages 19 and 70 is approximately 600 IU per day and 800 units per day over age 70.
The recommended amounts of calcium for adults are as follows: 1  For pre-menopausal women 25-50 years old and post-menopausal women on estrogen replacement therapy: 1,000-1,200 milligrams of calcium per day.he recommended amounts of vitamin D for adults are as follows: 1  For people over 50 (and postmenopausal women): 400-800 i.u. of vitamin D per day. 2  For people over 65 or 70, at least 600 i.u. is usually recommended. 3  For people 25-50 years old (and premenopausal women): 400 i.u. of vitamin D per day.