Meat, Fish and Eggs
People who consume a lot of meat tend to be fatter than those who consume little or none. Eliminating meat, fish and eggs from the diet—in other words, becoming vegetarian—can be an effective way to lose weight. However, going vegetarian doesn’t guarantee weight loss. A meatless diet that’s heavy on donuts is no better than a hamburger-heavy diet.
By the same token, a diet that includes meat, fish and eggs can also promote weight loss provided you make good choices within this food group (e.g. broiled salmon instead of hamburger) as well as outside of it (e.g. strawberries instead of donuts).