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.
1 The recommended calcium intake for men and women in the age group of 19-50 is 1,000 mg per day. 2  While, for people in the age group of 50-70, the recommended daily calcium intake is 1,200 mg a day.ietary Reference Intakes (DRI) which is developed by the Food and Nutrition Board (FNB), provides you with the recommended intake of calcium for your body. The term DRI may be defined as a set of values that helps assess the daily nutritional requirement of a healthy person based on his age and gender.