Source: Phosphorus is found in a great many foods, especially those rich in protein. It is found in dairy products such as milk and cheese, and also in egg yolks, chocolate, fish, liver, certain vegetables, leguminous vegetables, dried fruit (especially prunes) and whole cereals.

What does it do? It works in the membranes of cells, helps keep bones and teeth in good condition, and is involved in the metabolism of energy.

For whom? As with calcium, phosphorus intake must be increased as the body grows, and during pregnancy and breast-feeding, and sporting people require a higher intake,

Recommended intake (RI)

The recommended intake is 750 mg daily for adults, 800 for pregnant women and 850 for breast-feeding women. The reference intake has been set at 800 mg daily.