100 grams of meat is equivalent to 3.5274 ounces. Depending on the type of meat, the same amount might differ considerably in nutritional content.
One hundred grams of lean beef, for instance, typically contains 36 grams of protein and 199 calories, whereas the same quantity of chicken breast contains slightly less protein (33 grams) but almost 100 additional calories (298).
Lamb has the same amount of protein as lean beef but still more calories (279), while pork tenderloin has 32 grams of protein and 248 calories.
According to Men's Health, cod is a far better source of protein, containing 63 grams for every 100 grams in total weight.