What does "High in protein" mean to you ?

For me, high in protein is not the amount of protein food contains per 100g, but the amount of protein it contains per 10 / 100 kcal: A lot of people wrongly say that peanuts are a good source of protein - yea, they have 20 ish grams of protein per 100 grams which is a lot, but they also have around 500 kcal per 100 grams. Skimmed Milk, on the other hand, has 3.4 grams of protein per 100 grams (mililitres) - this might sound like little, but there are 35 kcal per 100 ml. At the end if you eat 100 kcal of peanuts you would be getting 4 grams of protein when if you drink 100 kcal of milk you would be getting 10 grams of protein.

Cheese can be another very good source of protein; even it looks it has a LOT of calories, it has a lot of protein to compensate it; a light cheese would have 280 kcal per 100 grams, but it would have around 28 grams of protein which would be at the end 10 grams of protein per 100 kcal =D, and in cottage cheese you would be able to get one which is around 15 grams of protein per 100 kcal ;).

Good quality Lean meat, chicken and tuna cannot be discussed, as they have 20+ grams of protein per 100 kcal; i would say this products are one of the best protein sources besides milk :P.

Soy Beans and its products, like milk, have 10 + grams protein per 100 kcal which i think is realy good, and an exelent source for vegetarians (If compared in protein: Tofu = cooked ham, soy milk = skimmed milk).

good mathematical analysis

thx for sharing

The best solution, of course, is to get a balanced and varied diet that included a lot of different sources of protein.  Because each brings with it a different set of accompanying nutrients.  Lean chicken may have 20g+ protein per 100kcal but it doesn't contain the calcium of cheese or the E vitamins of peanuts or the fibre of beans.