The following is a summary of what you'll find on this page. Click the links to jump to the sections below the table of contents. Nutrients and Supplements to Use The following are the recommended nutritional values for this nutritional table. They are not the recommended dietary values. This is because the American Dietetic Association, a part of the US government, has established some other recommendations for people using vitamin or mineral supplements. Dietary Reference Values (DRV) are the most widely accepted and used reference values. The DVs for calcium and vitamin D are recommended values for all age groups. These values are considered to be an upper limit for the safe use of any individual nutrient. However, they don't necessarily apply to all people. People with low or very low intakes of all nutrients should consider using a diet with fewer nutrients, like a lower-fat, low-carb diet, which has been shown to lower blood pressure, cholesterol and triglyceride levels, among other benefits. In addition, the DRV is a guideline and it may not be a safe or appropriate value for everyone. A DRI is a nutrient reference value that is not recommended or supported by the American Dietetic Association and is used by some people to determine what level of a nutrient is safe for them, based on the type of nutrient, how much of that nutrient is in the food, and their age. In the past, some studies used the DRI as a reference value.