Beef Products
Calorie-for-calorie, beef is one of the most nutrient-rich foods. Not only does it provide you with a bundle of essential nutrients, but it has one of the highest concentrations of these nutrients compared to many other proteins.
A three-ounce serving of lean beef contributes less than 10 percent of calories to a 2,000-calorie diet yet it supplies more than 10 percent of the Daily Value for nine essential nutrients. (Beef.org)