Would you have guessed almonds, black beans, and dark chocolate are some of the top foods with which runners should be fueling themselves? Runners World contributor Liz Applegate, PhD., shares the best 15 foods that runners should be eating every week to maintain good health and top performance: Most supermarkets stock more than 30,000 items, yet every time we race up and down the aisles of the grocery store, we toss into our carts the same 10 to 15 foods. Which isn't such a bad thing, as long as you're taking home the right foods--ones that will keep you healthy, fuel peak performance, and easily cook up into lots of delicious meals. So before your next trip to the grocery store, add the following 15 foods to your must-buy list. Then, when you get home, use our tips and recipes to easily get them into your diet and onto your menu. Add to your cart: Almonds Runners should eat a small handful of almonds at least three to five times per week. Nuts, especially almonds, are an excellent source of vitamin E, an antioxidant that many runners fall short on because there are so few good food sources of it. Studies have shown that eating nuts several times per week lowers circulating cholesterol levels, particularly the artery-clogging LDL type, decreasing your risk for heart disease. And the form of vitamin E found in nuts, called gamma-tocopherol (a form not typically found in supplements), may also help protect against cancer. Add to your diet: Add almonds and other nuts to salads or pasta dishes, use as a topping for casseroles, or throw them into your bowl of hot cereal for extra crunch. Combine with chopped dried fruit, soy nuts, and chocolate bits for a healthy and tasty trail mix. Almond butter is perfect spread over whole-grain toast or on a whole-wheat tortilla, topped with raisins, and rolled up. Store all nuts in jars or zipper bags in a cool dry place away from sunlight and they'll keep for about two to four months. Storing them in the freezer will allow them to keep an extra month or two. Add to your cart: Eggs One egg fulfills about 10 percent of your daily protein needs. Egg protein is the most complete food protein short of human breast milk, which means the protein in eggs contains all the crucial amino acids your hard-working muscles need to promote recovery. Eat just one of these nutritional powerhouses and you'll also get about 30 percent of the Daily Value (DV) for vitamin K, which is vital for healthy bones. And eggs contain choline, a brain nutrient that aids memory, and leutin, a pigment needed for healthy eyes. Choose omega-3 enhanced eggs and you can also increase your intake of healthy fats. Don't worry too much about the cholesterol: Studies have shown that egg eaters have a lower risk for heart disease than those who avoid eggs. Add to your diet: Whether boiled, scrambled, poached, or fried (in a nonstick skillet to cut down on the need for additional fats), eggs are great anytime. Use them as the base for skillet meals such as frittatas. Or include them in sandwiches, burritos, or wraps as you would meat fillers. You can also add them to casseroles and soups by cracking one or two in during the last minute of cooking. This Thanksgiving Day standard should be on the plates of runners year-round. Just a single 100-calorie sweet potato supplies over 250 percent of the DV for vitamin A in the form of beta-carotene, the powerful antioxidant. Sweet potatoes are also a good source of vitamin C, potassium, iron, and the two trace minerals manganese and copper. Many runners fail to meet their manganese and copper needs, which can have an impact on performance since these minerals are crucial for healthy muscle function. There are even new sweet-potato varieties that have purple skin and flesh and contain anthocyanidins, the same potent antioxidant found in berries. Add to your diet: Sweet potatoes can be baked, boiled, or microwaved. You can fill them with bean chili, low-fat cheese, and your favorite toppings, or you can incorporate them into stews and soups. Baked as wedges or disks, sweet potatoes make delicious oven fries. Don't store sweet potatoes in the fridge because they will lose their flavor. Instead, stash them in a cool, dark place, and they should keep for about two weeks. Add to your cart: Whole-Grain Cereal with Protein Look for whole-grain cereals that offer at least five grams of fiber and at least eight grams of protein. For example, one cup of Kashi GoLean cereal, which is made from seven different whole grains, including triticale, rye, and buckwheat, fills you up with a hefty 10 grams of fiber (that's 40 percent of the DV) and is loaded with heart-healthy phytonutrients. It also contains soy grits, supplying 13 grams of protein per serving. If you pour on a cup of milk or soymilk, you'll get 30 to 40 percent of your protein needs as a runner in one bowl. Other high-protein/high-fiber cereals include Nature's Path Optimum Rebound and Back to Nature Flax & Fiber Crunch. Add to your diet: Of course whole-grain cereal is excellent for breakfast--a meal you don't want to skip since research indicates that those who eat breakfast are healthier, trimmer, and can manage their weight better than nonbreakfast eaters. Cereal also makes a great postrun recovery meal with its mix of carbohydrates and protein. Or you can sprinkle whole-grain cereal on top of your yogurt, use it to add crunch to casseroles, or tote it along in a zip bag. Add to your cart: Oranges Eat enough oranges and you may experience less muscle soreness after hard workouts such as downhill running. Why? Oranges supply over 100 percent of the DV for the antioxidant vitamin C, and a recent study from the University of North Carolina Greensboro showed that taking vitamin C supplements for two weeks prior to challenging arm exercises helped alleviate muscle soreness. This fruit's antioxidant powers also come from the compound herperidin found in the thin orange-colored layer of the fruit's skin (the zest). Herperidin has been shown to help lower cholesterol levels and high blood pressure as well. Add to your diet: Add orange sections to fruit and green salads, or use the orange juice and pulp for sauces to top chicken, pork, or fish. And to benefit from the antioxidant herperidin, use the orange zest in baking and cooking, as with my Grilled Herbed Salmon recipe (above). Select firm, heavy oranges, and store them in the fridge for up to three weeks. Orange zest can be stored dried in a glass jar for about a week if kept in a cool place. Add to your cart: Canned Black Beans One cup of these beauties provides 30 percent of the DV for protein, almost 60 percent of the DV for fiber (much of it as the cholesterol-lowering soluble type), and 60 percent of the DV for folate, a B vitamin that plays a key role in heart health and circulation. Black beans also contain antioxidants, and researchers theorize that this fiber-folate-antioxidant trio is why a daily serving of beans appears to lower cholesterol levels and heart-disease risk. In addition, black beans and other legumes are low glycemic index (GI) foods, meaning the carbohydrate in them is released slowly into the body. Low GI foods can help control blood sugar levels and may enhance performance because of their steady release of energy. Add to your diet: For a quick, hearty soup, open a can of black beans and pour into chicken or vegetable stock along with frozen mixed veggies and your favorite seasonings. Mash beans with salsa for an instant dip for cut veggies, or spread onto a whole-wheat tortilla for a great recovery meal. Add beans to cooked pasta or rice for extra fiber and protein. Add to your cart: Mixed Salad Greens Rather than selecting one type of lettuce for your salad, choose mixed greens, which typically offer five or more colorful delicate greens such as radicchio, butter leaf, curly endive, and mache. Each variety offers a unique blend of phytonutrients that research suggests may fend off age-related diseases, such as Alzheimer's, cancer, heart disease, and diabetes. These phytonutrients also act as antioxidants, warding off muscle damage brought on by tough workouts. You can usually buy mixed greens in bulk or prewashed in bags. Add to your diet: Toss a mixed greens salad with tomato, cucumber, scallions, and an olive oil-based dressing (the fat from the oil helps your body absorb the phytonutrients). You can also stuff mixed greens in your sandwiches, wraps, and tacos. Or place them in a heated skillet, toss lightly until wilted, and use as a bed for grilled salmon, chicken, or lean meat. Greens store best in a salad spinner or the crisper drawer in your fridge for up to six days. Just don't drench them in water or they won't keep as long... To read the entire article (and to find out all 15 foods runners need each week for best performance), visit Runnersworld.com.