Your friend always refers to meat as protein. you try to correct her by stating that:

All foods have mixtures of the energy-giving nutrients.

Explanation:

Meat is not only made up of protein, iwrongt would be naive to say to meat is wholly protein, since other nutrients are present.

Every food possesses energy-giving nutrient mixtures. Meat for example, as high protein content, significant amount of lipids, fat-soluble vitamins (A, D, E and K), water-soluble vitamins (the vitamin B family).