Proteins provide an important dietary source of which mineral element? Phosphorus
Nitrogen
Potassium
Calcium

Proteins provide an important dietary source of Phosphorus mineral element.

Explanation:

Phosphorus is found naturally in foods rich in protein, such as meat, poultry, fish, nuts, beans, and dairy products. Phosphorus is also added to many processed foods.

Phosphorus

Phosphorus is found in proteins. It is an important substance for our body, it is found in every cell and it keeps our bones and teeth healthy. The bone is made up of a calcium-phospurus compound called calcium-phosphate.