Why do different meats have different amounts of protein?

Question

I.e salmon and chicken breast are especially high, including salmon compared to other fish, and chicken breast compared to chicken thigh.

In: 1

Answer 1

Because meat has other components, mostly fats, water, and connective tissue. Pork ribs, for example, have a huge amount of fat and connective tissue, which means less of their weight comes from protein compared to a lean, connective-tissue-light meat like chicken breast.