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# The Percent Daily Value for Phosphorus

by
Aubri John
Aubri John has been a contributing researcher and writer to online physical and mental health oriented journals since 2005. John publishes online health and fitness articles that coincide with her licensed clinical skills in addictions, psychology and medical care. She has a master's degree in clinical social work and a Ph.D. in health psychology.
Check nutrition labels for percent daily value of nutrients in your favorite foods.

The mineral phosphorus resides primarily in your bones, but it is also used by every cell in your body as a major structural component. Phosphorus facilitates the use of carbohydrates and fat during metabolism and it helps synthesize proteins, which are important for normal growth and repair of your muscles, cells and tissues. The percent daily value of phosphorus is based on a standard 2,000-calorie diet but may vary depending on your health needs.

## Percent Daily Value of Phosphorus

Daily value and amount per serving refers to the measure of a particular nutrient in foods, and you can find this information on nutrition labels. The percent daily value of phosphorus is standardized at 1,000 milligrams. The percent daily value is different from the recommended dietary allowance, or RDA. The RDA serves as a guide to ensure that you get the total standardized daily intake of a nutrient to achieve normal health benefits from that nutrient. The RDA for daily phosphorus in adults is 700 milligrams.

## Calculating Percent Daily Value

Determine the amount of phosphorus in a food item using the amount per serving divided by the standardized daily value, which is 1,000 milligrams. Then multiply that number by 100 to get the percent daily value. For example, one slice of whole wheat bread contains 57 milligrams of phosphorus. Divide 57 by 1,000, which equals 0.057. Multiply 0.057 by 100 and the percent of phosphorus you get from that slice of bread is 5.7. Most nutrition labels include the percent daily value per serving of food so you may not have to calculate it.

## Daily Phosphorus Consumption

To maintain adequate health, consume 100 percent daily value for phosphorus based on your specific calorie needs. If you have kidney disease this may not be equivalent to 1,000 milligrams percent daily value. Kidney disease can alter your metabolic processes and too much phosphorus increases muscle weakness and pain in the joints or bones. If you are a healthy adult use the standardized daily value percentages listed on nutrition facts labels. Keep in mind that even healthy adults can consume too much phosphorus, which may result in abnormal blood levels of phosphate. The tolerable upper intake level for phosphorus should not exceed 4,000 milligrams per day.

## High Phosphorus Foods

Dairy products including milk and yogurt contain 247 to 385 mg of phosphorus per 8 oz. serving. A 3-ounce. serving of cooked beef, chicken, turkey or fish yields 155 to 252 milligrams of phosphorus. Nut varieties including almonds or peanuts contain 107 to 134 milligrams per 1-ounce serving and legumes or lentils have 170 to 200 milligrams per 1/2-cup cooked serving. Grains like bread or pasta and fruits or vegetables are generally low in phosphorus.

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