Erectile Dysfunction / Fish Oil For Erectile Dysfunction

Fish Oil for Erectile Dysfunction: Benefits and Research

Written by Dr. Sharon Kumar
August 20, 2025
Fish Oil for Erectile Dysfunction: Benefits and Research

Fish oil has long been known for supporting heart health, but recent research shows it may also impact sexual health, especially erectile dysfunction (ED). Erectile dysfunction happens when blood flow to the penis isn’t strong enough to get or keep an erection. The omega-3 fatty acids in fish oil, that is, EPA and DHA, help improve circulation, reduce swelling (inflammation), and support healthy blood vessels, which may improve erection quality. Some men wonder, does fish oil help with erectile dysfunction, or can it cause erectile dysfunction?  In this article, we’ll explore the evidence, fish oil dosage for erectile dysfunction, and how omega-3s may benefit men’s overall health, including fertility, mental well-being, and heart function.

What is Fish Oil and Why Should Men Care About It?

  • Fish oil is obtained from oily fish and seafood such as salmon, mackerel, and sardines. It is rich in omega-3 polyunsaturated fats[1], which are essential fats that the body cannot produce on its own. 
  • These omega-3s, EPA (eicosapentaenoic acid)[2] and DHA (docosahexaenoic acid)[3], have been shown to provide numerous health benefits, particularly for men. 
  • The alpha-linolenic acid (ALA)[4] in these fatty acids helps protect heart health (cardiovascular health) and reduces damage caused by harmful stress (oxidative stress) in the body.
  • All these are indirectly related to helping men with ED. Erections are directly dependent on heart and blood circulation health.
  • In India, many men face health problems that could be improved by consuming more omega-3s from sources like cod liver oil or high-quality GNC fish oil supplements. But these important fats are often not consumed enough, while diets tend to have more saturated fats.[5]

fish oil for erectile dysfunction

Fish Oil and Erectile Dysfunction

Erectile dysfunction (ED) is a common issue for many men, and research shows that omega-3s in fish oil can help improve erection function. Fish oil helps with sexual dysfunction by improving endothelial dysfunction, which is important for good blood flow. Endothelial dysfunction refers to the inner lining of blood vessels, where it's not functioning properly.  Omega-3s make blood vessels more flexible and boost the production of a chemical (endothelial nitric oxide synthase), which helps relax and widen blood vessels. This supports the vascular/blood function needed for an erection.

Fish oil is a great way to support heart health. Omega-3 fatty acids help lower cholesterol and inflammation, both of which are essential for maintaining a healthy heart, leading to better erections.

Omega-3s help the penis get better blood flow by making blood vessels relax and stay open. This increases the pressure inside the penis, which is needed to keep an erection firm. They also protect the key nerve that controls erections, helping things work properly. Clinical trials have shown that men who take omega-3s often see better blood flow and improvements in erection function. Omega-3s may also help lower the risk of penile fibrosis, a condition that can make erections harder to achieve.[6]

fish oil for erectile dysfunction

Fish Oil for Testicular Health and Fertility

To improve sexual function, fish oil may also support men's reproductive wellness.  A study showed that:  Men who took fish oil regularly had improvements in sperm quality, including higher sperm count, more sperm volume, and better sperm motility (how well sperm can move). [7] Omega-3s are essential for the health of sperm structure, and they help improve overall sperm health, which is important for fertilization events (when sperm meets an egg). Fish oil may also boost testicular size and improve testicle health by increasing some important hormones (luteinizing hormone and follicle-stimulating hormone). These hormones play a role in reproduction.  Omega-3s help support certain enzymes in the body that keep testosterone levels healthy, which is important for male fertility and overall reproductive health. Omega-3s can help control certain hormones that are important for reproduction and protect the body from harmful chemicals like Bisphenol F[8], which can damage fertility. It might be a good idea for men to include fish oil in their routine to help improve their fertility and also their overall health.

fish oil for erectile dysfunction

Mental Health Benefits of Fish Oil for Men

Depression and anxiety are common mental health issues, but many men are hesitant to seek help.  Research shows that omega-3s, especially EPA, can help reduce depressive symptoms.[9] Omega-3s help calm down swelling (inflammation) and irritation in the brain, which is often linked to depression These fatty acids support overall brain health, enabling it to function more effectively. Studies suggest that men who take fish oil, particularly those with a high amount of EPA, may notice a decrease in depressive symptoms. Omega-3s can boost brain performance and may also reduce the risk of serious mental health problems, which are more common in men.

fish oil for erectile dysfunction

General Health Benefits of Fish Oil

Fish oil offers a lot of general health benefits for men, beyond just sexual and mental health. It helps improve heart health by lowering cholesterol levels and reducing high cholesterol[10], which lowers the risk of heart disease or cardiovascular disease.  Omega-3s help reduce swelling in the body, which can keep blood pressure under control and lower the chances of developing type 2 diabetes or other health problems like metabolic disorders (familial hyperlipidemia) related to high cholesterol. The anti-inflammatory effects of omega-3s also help keep blood pressure healthy and may reduce the risk of type 2 diabetes and other metabolic disorders, like familial hyperlipidemia. Omega-3s can also reduce joint pain [11] and joint inflammation [12], lowering the risk of arthritis. They help with skin health, including conditions like dry eye and dry eye disease, and may protect against age-related macular degeneration. When eaten as part of a balanced diet with foods like nuts, seeds, olive oil, whole grains, and less red meat, omega-3s offer a healthier choice compared to the usual Western diet full of unhealthy fats. The good fats in fish oil also help muscles recover faster and can support weight control Omega-3s may also help reduce the risk of prostate cancer and improve overall cardiovascular health. Adding omega-3s from fish oil to your diet could significantly improve your overall well-being.

fish oil for erectile dysfunction

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Conclusion

Fish oil, which is rich in omega-3 fatty acids, can do a lot for men’s health. It can improve blood flow for better erections, support fertility by keeping sperm and testicles healthy, and even help with mood issues like depression and anxiety. It also protects the heart, keeps blood pressure in check, and lowers the chances of problems like diabetes, joint pain, and even prostate cancer. When added to a healthy diet with nuts, seeds, whole grains, and less red meat, fish oil makes a big difference. With rising concerns about fertility and mental health, especially in countries like India, fish oil is an easy and effective way for men to boost overall health. Taking it regularly can support the heart, mind, and body, helping men live healthier, more energetic lives.

Most Asked Questions

Which is the best oil for erectile dysfunction?

Fish oil is one of the best options, as it improves blood flow and supports vascular health with its omega-3 fatty acids.

Can fish oil increase testosterone?

Fish oil doesn’t directly increase testosterone, but it supports testicular health and hormone balance, which can help maintain normal testosterone levels.

What is the best male supplement for erectile dysfunction?

Fish oil, along with L-arginine and zinc, is considered one of the most effective supplements for enhancing erectile function.

Can fish oil increase blood flow?

Yes, fish oil helps increase blood flow by improving vascular function and enhancing nitric oxide production.

What other foods can I consume to get omega-3s besides fish oil?

You can get omega-3s from foods like salmon, mackerel, walnuts, flaxseeds, and chia seeds, or you can use plant-based omega-3 supplements like algal oil.