Wednesday, August 22, 2012

Recommended Daily Values for Nutrition


Recommended Daily Values for Nutrition
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If you have ever been on a diet, you may already be familiar with food nutrition labels and how to read them. The U.S. Food and Drug Administration established the use of food labels in order to provide consumers with key information regarding the nutritional content of packaged foods. In addition to providing information about serving size and caloric content, food labels also offer important information regarding the recommended daily values for certain nutrients.

History

Recommended daily values for nutrition are based on the Dietary Reference Intake guidelines established by the Institute of Medicine of the U.S. National Academy of Sciences. The Dietary Reference Intake system was developed in the late 1990s as an expansion of the Recommended Dietary Allowance guidelines, which date back to World War II. Today, the Institute of Medicine's Food and Nutrition Board is responsible for updating the Dietary Reference Intake guidelines.

Identification

The most easily recognizable symbol associated with recommended daily values are the labels that the U.S. Food and Drug Administration puts on food packaging. FDA nutrition labels must be prominently displayed on all packaged foods and they must contain several key pieces of information. According to the FDA, a proper food label should indicate serving size, servings per container, calories per serving, a breakdown of the fat, sodium and cholesterol content, carbohydrate and protein content and the guidelines for percentage of daily values.

Recommendations

Meeting your daily recommended value for certain nutrients can contribute to improved health overall. According to the Mayo Clinic, the average adult requires 3,500 milligrams of potassium, approximately 25 milligrams of fiber, 50 grams of protein, 5,000 International Units (IU) of vitamin A, 60 milligrams of vitamin C, 1,000 milligrams of calcium, 18 milligrams of iron, 400 micrograms of folate (more if you're pregnant or breastfeeding), 6 micrograms of B-12, 400 IU of vitamin D, 30 IU of vitamin E and 2 milligrams of vitamin B-6.

What to Limit

Consuming too much of certain other nutrients present in food can potentially lead to health problems. The Food and Drug Administration recommends consuming less than 65 grams of fat, 20 grams of saturated fat, 300 milligrams of cholesterol and 2,400 milligrams of sodium per day. In addition, the Mayo Clinic notes that there is no established daily value for trans fat or sugar, and you should avoid foods high in both to avoid increasing your risk for diabetes or cardiovascular disease.

Considerations

The information contained on food labels is based on a 2,000 calorie diet. If you regularly consume significantly more or less than that amount, you may need to adjust your percent daily values up or down to establish the appropriate intake level. Percent daily values are specific to the serving size of individual foods so you may also need to adjust your percent daily values if you are eating smaller or larger portions

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