April Graff, MS, RD, LD
Hy-Vee Dietitian
As a registered dietitian working with active individuals, I love helping runners fuel their bodies in ways that support both performance and recovery. One nutrient that often gets overlooked but plays a powerful role in a runner’s routine is omega-3 fatty acids. These essential fats, especially EPA and DHA, are not made by the body, so we need to get them from food or supplements. For runners, omega-3s offer a wide range of benefits that go beyond just heart health.
Running is a high-impact sport that can lead to inflammation, muscle soreness, and oxidative stress. Omega-3s help calm inflammation, support joint health, and even improve cardiovascular function. They’ve been shown to enhance oxygen delivery to muscles and may help reduce the risk of irregular heart rhythms during intense training. On top of that, omega-3s support muscle recovery by aiding in protein synthesis, which helps repair those tiny muscle tears that happen during long runs or speed workouts.
While the general recommendation for omega-3 intake is around 250 to 500 milligrams of combined EPA and DHA per day, athletes often need more. For runners, especially those training intensely or logging high mileage, a daily intake closer to 2000 milligrams may be more beneficial. Some research even supports up to 3,500 milligrams for enhanced recovery and reduced inflammation. It’s important to remember that individual needs can vary, which is why I often recommend getting your omega-3 levels tested.
Testing your omega-3 status, such as through the Omega-3 Index, gives you a snapshot of how much EPA and DHA is present in your red blood cells. An optimal range is between 8 and 12 percent, but many runners fall below that. Knowing your levels can help you tailor your nutrition plan and decide whether you need to increase your intake through food or supplements. This is especially helpful for plant-based runners, since the conversion of plant-based omega-3s like ALA into EPA and DHA is limited.
The best sources of omega-3s are fatty fish like salmon, mackerel, sardines, and herring. If fish isn’t a regular part of your diet, algae-based supplements are a great plant-based alternative. You can also include foods like chia seeds, walnuts, and flaxseed to boost your overall omega-3 intake, although they don’t provide the same direct benefits as EPA and DHA.
Omega-3 fatty acids are a simple yet powerful addition to a runner’s nutrition strategy. They support endurance, reduce soreness, protect your heart, and keep your joints feeling good. If you’re looking to stay strong, recover faster, and feel better on your runs, omega-3s are worth paying attention to. Consider getting your levels tested and talk with a dietitian or healthcare provider to find the right approach for you.
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