Question is as the title suggests, just a random thought that I had and couldn’t find a answer from a quick google search
Found this on this website
A typical chicken has about 1,037 calories, and this comes from 12 ounces of light meat and eight dark meat. A 3.5-ounce portion contains about 284 calories, three hundred and forty-seven milligrams of sodium, six grams of fat, and seventeen grams of protein.
Not a complete answer but gives you an idea