Phosphorus: Includes basic functions, food sources, suggested intake, and necessity in the diet.Phosphorus: Brief essay on the mineral with list of good food sources, suggested intake, and functions.Phosphorus: A discussion of phosphorus with functions, deficiency signs, food sources, supplements, and recommendations from the Linus Pauling Institute.Phosphorus Dietary Mineral: Facts about the mineral such as functions, RDA suggested intake, and food sources.