Omega-3 fish oils are widely recognized for their health benefits, particularly for the heart. However, many might not be aware that these healthy fats can also enhance workout performance.
Research has associated omega-3s with improved exercise performance, making them a potentially valuable addition for anyone who regularly engages in physical training.
Omega-3 fatty acids are unique fats found primarily in fish, seafood, nuts, and seeds (like walnuts and flaxseed), as well as certain plant oils.
The two primary forms of omega-3s are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Both EPA and DHA are crucial for the structure and function of various cells, particularly in the muscles, heart, and brain. They play a role in enhancing “membrane fluidity”, facilitating the flow of nutrients and chemicals into cells.
To maintain ideal omega-3 levels, it is essential to incorporate them into the diet. Although recommendations vary, most health organizations suggest an intake of 1.4-2.5g of omega-3 daily, with specific recommendations of 140-600mg from EPA and DHA. Approximately 500mg daily of combined EPA and DHA is adequate to support general health and enhance exercise.
Omega-3s and Exercise
Engaging in exercise, particularly resistance training like weight lifting and intense workouts such as CrossFit, places stress on the muscles. This stress results in minor damage, triggering inflammation as part of the body’s repair process. While some inflammation is necessary for adaptation, excessive or prolonged inflammation may hinder recovery and performance.
Omega-3s serve as “traffic controllers,” helping to regulate the body’s inflammatory response to exercise, which allows muscles to recover more efficiently.
Additionally, EPA appears to improve blood circulation to muscles following exercise and aids in muscle protein synthesis, the process by which the body builds new muscle tissue. These functions can enhance recovery following repeated workout sessions.
Studies involving physically active adults have indicated that taking fish oil supplements containing EPA and DHA for several weeks led to greater strength improvements in resistance training compared to those performing the same exercises without omega-3 supplements.
Thus, EPA and DHA appear to assist the body in recovering and adapting to training more effectively over time.
DHA also plays a vital role in brain and nervous system function, supporting cognitive abilities and nerve signals that help muscles operate efficiently during exercise. Regular exercisers who take omega-3 supplements show higher levels of DHA in their muscle cell membranes compared to those who are inactive. This may be significant for recovery and adaptation following workouts.
Maintaining Omega-3 Balance
Even though omega-3 fatty acids can be obtained from dietary sources, the levels of EPA and DHA in foods can vary based on the type of fish, whether it is wild-caught or farmed, the feed given to farmed fish, and how food is stored and cooked.
Contemporary diets often provide significantly more omega-6 than omega-3, which can contribute to inflammation. This disparity is due to omega-6 fats producing pro-inflammatory compounds, while omega-3s produce anti-inflammatory ones. A healthier balance can be achieved by increasing omega-3 intake and decreasing the consumption of processed foods and oils high in omega-6 (such as corn, safflower, and soybean oils).
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To maintain a healthy level of omega‑3s, it is advisable to include a variety of fatty fish, seafood, and plant-based sources such as chia seeds or linseed in your diet. Additionally, opt for low glycaemic carbohydrates like oats, legumes, and most fruits. Low glycaemic foods release sugar gradually into the bloodstream, endorsing better fat utilization as energy more effectively.
Conversely, high-glycaemic foods like white bread, sugary drinks, or refined grains release sugar rapidly. This can diminish how well omega-3s are taken up by cells, potentially increasing inflammation.
Most individuals can achieve adequate omega-3 levels through a nutritious diet rich in oily fish. However, supplements can serve as a practical alternative for those who may not consume these foods or require greater intakes. For noticeable improvements in muscle health and overall well-being, a daily intake for at least two weeks is recommended.
For many active individuals, this translates to 3-5g of fish oil per day, preferably with a high concentration of EPA and DHA. Omega-3s are better absorbed when taken with meals that include some fat. Therefore, dividing the dose (for instance, taking part with breakfast and part with dinner) may enhance absorption and tolerability.
For optimal muscle growth and functional performance, a supplement containing approximately 1.8g of EPA and 1.5g of DHA daily is recommended. This is roughly equivalent to the omega-3 content of 200–400g of fatty fish such as salmon, herring, or sardines.
If brain health, cognitive function, or mood enhancement is the goal, a higher ratio of DHA might be advantageous. Instead of a supplement providing an equal 1:1 ratio of EPA to DHA, consider one with an 1:8 ratio (for example, 100mg EPA and 800mg DHA). Since products can vary considerably, consumers should check the EPA and DHA content rather than just the total fish oil amount.
Omega-3 supplements are generally safe, but some individuals may experience a mild fishy aftertaste or stomach upset, especially at higher doses or when taken without food. Intakes exceeding 5g per day from supplements should be approached with caution unless otherwise advised by a healthcare professional.
In summary, omega-3s can support health, recovery, and adaptation to training, making them a vital nutritional aspect for those who exercise regularly. While a balanced diet should be the priority, omega-3 supplements can be particularly useful in meeting training demands when dietary sources are insufficient.
