In Abrahamic religions, eating pig flesh is clearly forbidden by Jewish (kashrut), Islamic (halal) and Adventist (kosher animals) dietary laws. The pig is considered an unclean animal as food in Judaism and Islam, and parts of Christianity.

Nutritionally, pork possesses a wide range of essential nutrients like energizing B vitamins, choline for developing babies, and iron for healthy red blood cells. A 3-ounce serving of lean pork is loaded with protein and low in fat. Eating lean pork daily can be a part of a well-balanced, high-nutrient diet.

Pork is classified a red meat because it contains more myoglobin than chicken or fish. When fresh pork is cooked, it becomes lighter in color, but it is still a red meat. Pork is classed as "livestock" along with veal, lamb, and beef. All livestock are considered red meat.

Is pork worse than beef? Both pork and beef are high in proteins, fats, vitamins, and minerals. However, beef tends to have more calories, saturated fat, and cholesterol than pork. Pork may be a better choice, then, if you're trying to manage your blood cholesterol levels.