what's more food contains protein?

All meats (including fowl): e.g. beef; lamb; pork; venison; chicken; turkey.

All fish (including shellfish): e.g. cod; tuna; salmon; sardines; mackerel; prawns; shrimps.

Pulse vegetables: e.g. peas; beans; soya; peanuts.

Other important sources of protein include:

Dairy products, e.g. milk; yoghurt; which are also a very good source of calcium (necessary in maintaining good bone structure);

Eggs;

and “cereals” e.g. wheat; corn; oats; and although their protein levels are significantly lower than those found in “animal products” they provide a particularly important source of protein for vegetarians and vegans.

Dark meats, such as beef, are generally considered to be less healthy (high consumption of dark meats being correlated to high levels of bowel cancer) when compared to “white meats”, such as chicken. Additional health concerns include the high levels of “saturated fat” found in most cuts of animal flesh, with high intakes of saturated fats adversely affecting blood cholesterol levels, narrowing of the arteries, high blood pressure, heart disease, etc..

Fish is usually considered to be healthier than meat, due to the lower levels of saturated fat. “Oily” fish, e.g. salmon, is also an important source of omega-3 fatty acid which is an important component of a healthy diet.