The Healthy Runner's Diet

Rule #1: Eat seeds or foods made from seeds

What makes seeds so special? Seeds–including whole grains, many beans, and even tree nuts–contain the crucial mix of nutrients necessary to grow a new plant, which means they are packed with health-boosting compounds. In addition to traditional nutrients like protein and essential fats, seeds contain bioactive compounds, such as phenolic compounds and ferulic acid, which act as antioxidants.

Eating a diet with ample plant seeds has been shown to improve health and help maintain a healthier body weight. People who eat whole grains and beans have a lower risk for developing type 2 diabetes and certain cancers, and they tend to have lower cholesterol levels than people who don't eat nuts and seeds.

Rule #2: Eat five different colored fruits and vegetables daily

You already know that eating fruits and veggies supplies your body with vitamins, minerals, and the carbs it needs to fuel your running. Fruits and vegetables also fill you up with few calories, helping you maintain your weight. But to get the most from your produce, you need to think in terms of color–yellow, orange, red, green, blue, purple, and every shade in between. There are 400-plus pigments that light up the produce aisle, and each offers unique health benefits.

Rule #3: Eat plant foods with their skins intact

Drop the peeler. From apples and black beans to red potatoes and zucchini, plants' outer skins protect them from UV light, parasites, and other invaders. As a result, those skins are bursting with a wide range of phytochemicals that also protect your health. Grape skins, for example, are high in resveratrol, and onion skins contain quercetin, both of which can help lower your risk of heart disease and colon and prostate cancer, and boost your immunity.

 Rule #4: Drink milk and eat milk products that come from animals

Whether from a cow, a goat, or even a reindeer, mammal milk (as opposed to soy milk) and other dairy products, like cheese, yogurt, and kefir, should be a part of every runner's diet. Sure, milk supplies calcium, and calcium builds strong bones, which is great for your running. But animal milk offers much more.

 Rule #5: Eat foods that come from cold water

Fish and other seafood provide a unique combination of nutrients important to runners. Most seafood is an excellent source of quality protein (you need about 50 percent more protein than your nonrunning friends) and also contains zinc, copper, and chromium–minerals that are often low in a runner's diet. But the omega-3 fats found in fish, particularly those from cold waters, are what make seafood such an essential part of anyone's diet.

Rule #6: Eat meat, poultry, or eggs from free-range or grass-fed animals

By eating lean meats, poultry, and eggs, along with dairy products, runners can easily meet their increased protein needs and take in crucial minerals that can be hard to get from nonanimal sources. In particular, meats are a great source of iron and zinc, which support healthy red blood cells and a strong immune system. And these two minerals are simply better absorbed by the body when they come from meat instead of nonmeat sources.

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