10 Muscle Building Foods

1. Quinoa

"Move over white rice and make room for this South American grain," says Lynn Grieger, an online health, food, and fitness coach (lynngrieger.com). Although technically a seed, this protein source contains a complete set of branch chain and essential amino acids, making it a tissue- and muscle-building powerhouse. "Its nutritional composition is better than most grains, so try to have one cup a week, alternating it with other healthy starches such as sweet potatoes and brown rice," says Bowerman. "It's a great breakfast cereal, especially when flavored with cinnamon."

2. Grass-Fed Beef

Nothing beats pure protein when it comes to building muscle. The problem with most store-bought beef, however, is that the majority of cattle are grain fed, which gives their meat a relatively high ratio of omega-6 to omega-3 fatty acids. That, in turn, contributes to inflammation. The fatty acids in grass-fed beef, on the other hand, are skewed toward the omega-3 variety. Such beef also contains conjugated linoleic acid (CLA), which studies have shown help reduce belly fat and build lean muscle. "Shoot for two six- to eight-ounce lean cuts [e.g., flank or tenderloin] a week," says Bowerman. "But don't grill it. Charring is carcinogenic. Roast or pan sear."

3. Nonfat Ricotta

"Men don't eat the 16 ounces of protein they need every day, and this is a great substitute if they don't like cottage cheese," says Dr. Dansinger. Made from whey, this soft cheese is rich in amino acids, which speed muscle recovery after a workout. Flavor it with jam and spread it on a cracker, or put half a cup in a blender with skim milk and fruit for a postworkout cheesecake-flavored smoothie. It also tastes great on its own with olive oil and fleur de sel.

4. Tofu

Made from soybeans, tofu was once the bastion of vegetarians. But the plant protein in these pressed bean curds — available firm or soft, and delicious when marinated and tossed into salads — provides a full complement of amino acids, as well as isoflavone, which helps muscles recover from exercise. "A serving is four ounces," says Andrews. "Eat one to three servings a week."

5. Lentils

These flat beans don't just make delicious soups. "They're packed with protein, not to mention B vitamins and zinc, which are important for good sexual health," says Andrews. Eat half a cup twice a week, cooking them for about 30 minutes (until they start to break apart) to create a satisfying mashed-potato-like texture. "A single serving will help you cover all of your nutritional bases," adds Andrews.

6. Eggs

The old school of thought was that you should eat egg whites rather than whole eggs in order to get the protein without the added cholesterol. But recent studies have proved that the fat in the yolk is important to keep you satiated, and the benefits of the minerals and nutrients in the yolk outweigh its cholesterol effect. Eggs deliver the most nutrients for the fewest calories and provide the most satiety per calorie consumed. Plus, eggs contain choline, a B vitamin that studies have linked to improved brain function. "Eat three or four servings a week for breakfast or as a protein alternative at other meals," says Bowerman.

7. Greek-Style Yogurt

All yogurt provides muscle-friendly protein as well as probiotics that keep your digestive tract healthy and your immune system in top form. "But the Greek variety is thicker than regular yogurt, so it has more protein, and it's sweeter and heartier," says Clark. "It's man-style yogurt, with a velvety texture." Mix eight ounces with fruit for breakfast, or spread it on flatbread and top with chicken and onions.

8. Quorn

A little-known protein source, Quorn is a great substitute if you're looking to add variety to your diet with nonanimal protein. "It's composed of a compound similar to mushroom protein: mycoprotein," says Dr. Dansinger. "As such, it is top-quality protein without unhealthy animal fat. If you're a vegetarian, this should be at the top of your list." Quorn is also lower in calories than chicken and turkey, and you can buy it cubed or ground, making it an ideal substitute for ground beef. Find it at your local specialty market, and shoot for six ounces a day if you're tired of soy.

9. Chocolate Milk

Believe it or not, the sweet brown milk you loved as a kid is actually good for you. "Chocolate milk is one of my favorite postexercise recovery drinks because it contains whey protein, which helps muscles recover and repair," says Grieger. "Plus, it tastes great while boosting calcium and vitamin D, which research shows is important for preserving cartilage and joint health." Indeed, a 2006 study in the International Journal of Sport Nutrition and Exercise Metabolism found that it is as good as or better than Gatorade for replacing glucose in fatigued muscles. "Drinking one large glass after you work out will boost muscle growth and speed recovery," says Grieger.

10. Wild Salmon

High in inflammation-fighting omega-3s, wild red or sockeye salmon (canned or fillet) is an excellent low-mercury alternative to canned solid tuna, which can be high in the toxic metal. "Defrosting a frozen fillet for dinner makes a great substitute for steak," says Dr. Dansinger, "or pan sear a fresh fillet with olive oil and kosher salt." Recent NFL probes suggest that many teams — including the Bengals and the Giants — serve it to players to lock in strength gains and fuel performance. But while pro athletes might eat 16 ounces at once, you're better off with three or four six-ounce servings a week.