Dietary Reference Intakes (DRIs)

Since the introduction of the Recommended Dietary Allowances (RDAs), our scientific knowledge about the relationship between nutrients and health has grown considerably. Current nutritional studies examine not only the prevention of disease as the result of nutritional deficiencies but also the reduction of risk for chronic diseases such as osteoporosis, cancer, and cardiovascular disease. In response to this expansion in our knowledge, the Food and Nutrition Board of the National Academy of Sciences is currently developing the Dietary Reference Intakes (DRIs) which will include at least 4 types of reference values rather than just the RDA's.

		Females		Males

DRIs		51-70	70+		51-70	70+
Vitamin D (mcg)		10	10		10	10
Calcium (mg)		1200	1200		1200	1200
Phosphorous (mg)		700	700		700	0
Magnesium (mg)		320	320		420	420
Fluoride (mg)		3.1	3.1		3.8	3.8
Source: National Academy of Sciences, Committee on Dietary Reference Intakes

The DRIs will emphasize nutritional needs to optimize health and reduce risk of chronic disease. For example, the levels of nutrients that can help prevent cardiovascular disease, osteoporosis, certain cancers, and other diseases that are diet-related will be specified. For the first time, separate recommendations are being developed for those who are ages 51 to 65 years of age and those who are over age 65.

Although the DRIs represent a step in the right direction, it has become obvious over the past decade that the average American does not consume a diet which contains the necessary concentrations of vitamins, minerals, fiber and calcium necessary to protect them from the diseases and disorders of aging. About 92% of Americans fall short of eating the 5 to 8 servings of fruits and vegetables that are recommended. Furthermore, even a healthy diet may not provide the recommended amounts of certain nutrients such as vitamin E.