QUICK SUMMARY: Yes, omega-3 fatty acids help lower the production of pro-inflammatory compounds, and higher omega-3 intake is consistently linked with lower inflammatory markers.
Inflammation is part of our body’s natural defense system. Have you noticed when you have a cut, it swells and turns red after a short while? That’s our body’s inflammatory response to something harming us. It essentially works to heal us!
However, our body’s inflammatory defense system can sometimes go into overdrive, often triggered by factors such as smoking, along with a poor diet and lifestyle.
If our body is in a state of inflammation for too long, it can wreak havoc on our health. Chronic inflammation has been shown to contribute to the development and progression of many chronic diseases, including cardiovascular disease, type 2 diabetes, arthritis, and certain cancers. (8)
That’s why this topic matters for health-conscious adults who want to reduce inflammation through nutrition, including people looking for clean-label, science-backed supplements such as vegans, vegetarians, biohackers, and those focused on cognitive and overall wellness.
There are many lifestyle changes and specific strategies we can implement to help prevent inflammation, and omega-3 is one of the most researched. This article looks at what omega-3 is, its wider health benefits, how it helps inflammation, the role of diet and lifestyle changes, and the best way to supplement for the strongest anti-inflammatory results.
Key Takeaways
- Inflammation is a natural defense response, but when it becomes chronic it’s linked to issues like heart disease, arthritis, diabetes, and other chronic conditions.
- Omega-3 fatty acids help reduce production of pro-inflammatory molecules such as certain eicosanoids and cytokines.
- Higher omega-3 intakes are consistently associated with lower inflammatory markers and better long-term health outcomes.
- Combining omega-3 supplementation with lifestyle changes—like quitting smoking and limiting ultra-processed foods—offers the best support for managing inflammation.

Omega-3 is one nutrient essential for our health and wellbeing and is known to be an effective anti-inflammatory.
Notably, omega-3 fatty acids can reduce the production of molecules and substances linked to inflammation, such as inflammatory eicosanoids and cytokines. (1) Studies have consistently observed a connection between higher omega-3 intake and reduced inflammation. (2, 3, 4)
Let's delve a little deeper. But first...
What are Omega 3 Fatty Acids?
Omega-3, often referred to as fish oils, are essential fatty acids. They are essential fatty acids because our body cannot produce them naturally, so we must obtain them from food.
These essential fatty acids are incredibly important for us. They have many powerful health benefits for our whole body, particularly the brain, heart, and eyes.
Omega-3 is split into three main types:
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Eicosapentaenoic acid (EPA)
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Docosahexaenoic acid (DHA)
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Alpha-linolenic acid (ALA)
EPA and DHA in particular both play critical roles in the body, such as being involved in the inflammatory response, various metabolic signaling pathways, and brain function.
Before the body can use ALA, it must first be converted into EPA and DHA. Unfortunately this conversion process is inefficient, with less than 10% converted to EPA and 5% to DHA. (9)
Sources of Omega 3

You can find omega-3 fatty acids in foods such as:
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oily fish and other seafood, with fatty fish among the top dietary sources of EPA and DHA, including salmon and mackerel
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flaxseeds, nuts, chia seeds, walnuts, and certain vegetable oils, which provide ALA
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Fortified foods.
Sources of natural DHA and EPA are valuable, but what if you don't eat fish? Supplementation is sometimes necessary for those who feel they don’t get enough through diet alone, or if they require a higher dose.
If you're looking for a vegan alternative to fish oil or you simply don't like fish (or the fishy burps that come with many traditional fish oil supplements), Performance Lab Omega 3 takes its fatty acids from the original source, algae. Algae is vegan-friendly and also provides Omega 3 direct in the useful DHA and EPA forms.
Let’s look at some of the health benefits of omega-3!
What Are the Benefits of Omega-3?
Omega-3 and Fish Oil Supplements for Heart Health

Fish oils have been shown to support heart health by:
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Increasing levels of “good” HDL cholesterol (10)
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Lowering triglycerides (a type of fat found in our blood) (11)
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Reducing blood pressure in people with elevated levels, which may be especially relevant for those with high blood pressure (12)
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May help stabilize advanced arterial plaques, making them less likely to rupture as arteries harden. (5)
Clinical Trial
A 2019 meta analysis of omega 3 supplementation in randomized clinical trials showed that people who took omega 3 daily lowered their risk for most cardiovascular disease outcomes, aside from stroke. Compared to placebo, for instance, they had an 8% lower risk of dying from heart attack and coronary heart disease -- research carried out by Brigham and Women's Hospital, alongside Harvard T.H. Chan School of Public Health. (13)
Note that this isn't the same as preventing heart disease in the first place.
Omega-3 for Depression
Studies have shown that some people with depression are particularly low in DHA and EPA. While more research is needed on this, in some studies supplementing with omega-3 fish oils has been shown to help reduce signs of depression in those who are severely depressed. (6)
Another small study showed that omega 3 supplementation helped to reduce anxiety by 20%. (14)
Omega-3 for Eye Health

DHA, one of the main types of omega-3, is a major structural component of the retina of your eye, thus lack of DHA may cause problems with vision. (7)
Sufficient intake of omega-3 has also been linked to reduced risk of macular degeneration, which is the leading cause of blindness. (15)
Omega-3: Does Fish Oil Help With Inflammation?
As we have established, inflammation is part of our body’s natural response to harm, infections, and damage in our body. Our inflammatory response is essential to our survival and health.
However, long-term, or chronic inflammation contributes to many illnesses such as heart disease and cancer. The main triggers of chronic inflammation are poor diet and lifestyle, and smoking.
So, it goes without saying that improving your overall diet and lifestyle would help reduce your risk of inflammation. By this, we mean stopping smoking, reducing intake of highly processed foods, getting adequate physical activity, and following a healthy, balanced, and varied diet.
Omega 3 May Reduce Inflammation

Omega-3 plays a significant role in a healthy diet, especially as they are classed as essential fats, meaning we can only get them through food. EPA and DHA enter immune-cell membranes, replacing arachidonic acid to help regulate the immune response away from pro-inflammatory eicosanoids and cytokines.
A higher intake of omega-3 fatty acids can reduce inflammation by inhibiting the COX pathway and lowering proteins and cytokines linked to it, including TNF-α, IL-1, and IL-6.1
DHA also helps block NF-κB activation, and the body converts EPA and DHA into compounds with anti inflammatory effects called resolvins, protectins, and maresins. (16)
In people with rheumatoid arthritis, higher-dose fish oil supplementation has been associated with reductions in joint pain, morning stiffness, and the need for anti-inflammatory medications in some patients. (22)
Overall, the research and current evidence suggests fish oil may help lower inflammation, and researchers found that higher doses can lower levels of inflammatory biomarkers, but further research and more data are still needed across other conditions and populations.
STUDY: A 2019 meta analysis of omega 3 supplementation among people with cardiovascular conditions and diabetes concluded that omega 3 fatty acids may help to lower inflammatory biomarkers. (17)
Other ways to avoid inflammation
Most importantly, avoiding smoking, reducing your intake of highly processed foods, eating a healthy diet, and consuming anti-inflammatory foods are all effective in preventing or reducing your risk of long-term inflammation.
Omega-3 For Inflammation: A Final Word
When choosing an omega-3 supplement, the most important thing to look for is the DHA and EPA. For general wellness, 250–500 mg of combined EPA and DHA per day is a common target, while anti-inflammatory support or joint pain may call for 2,000–3,000 mg daily because higher amounts are often needed for noticeable relief. (18, 19)
Fish oil supplements are generally considered safe as recommended, though some people notice mild GI upset or a fishy aftertaste. High doses, especially above 3 grams per day, can increase bleeding risk and potentially raise stroke risk, particularly with certain medications, so speak with doctors before taking fish oil supplements at those levels. (20, 21)

Performance Lab Omega-3 provides EPA and DHA at the ideal 2:1 DHA to EPA ratio. Made from algal oil, it avoids many of the potential side effects of fish oils, including fishy taste and fishy burps! It is also Clean Label certified.
When comparing supplements, it’s smart to choose dietary supplements tested for contaminants such as mercury since nonprescription oil supplements can spoil.
The FDA regulates dietary supplements, but they are not reviewed or approved for safety and effectiveness before marketing. All Performance Lab products are third-party tested for purity and contamination.
References
- Anderson, G. J., Connor, W. E., & Corliss, J. D. (1990). Docosahexaenoic acid is the preferred dietary n-3 fatty acid for the development of the brain and retina. Pediatric Research, 27(1), 89-97.
- Brigham and Women's Hospital. (n.d.). In major meta-analysis of clinical trials, omega-3 fish oil supplements linked with lower cardiovascular disease risk. Retrieved from https://www.brighamandwomens.org/about-bwh/newsroom/press-releases-detail?id=3450
- Calder, P. C. (2006). n-3 polyunsaturated fatty acids, inflammation, and inflammatory diseases. American Journal of Clinical Nutrition, 83(6 Suppl.), 1505S-1519S.
- Chavda, V. P., Feehan, J., & Apostolopoulos, V. (2024). Inflammation: The cause of all diseases. Cells, 13(22), 1906. https://doi.org/10.3390/cells13221906
- Cleland, L. G., James, M. J., & Proudman, S. M. (2006). Fish oil: What the prescriber needs to know. Arthritis Research & Therapy, 8(1), Article 202. https://doi.org/10.1186/ar2055
- EFSA Panel on Dietetic Products, Nutrition, and Allergies (NDA). (2010). Scientific opinion on dietary reference values for fats, including saturated fatty acids, polyunsaturated fatty acids, monounsaturated fatty acids, trans fatty acids, and cholesterol. EFSA Journal, 8(3), Article 1461. https://doi.org/10.2903/j.efsa.2010.1461
- Eslick, G. D., et al. (2009). Benefits of fish oil supplementation in hyperlipidemia: A systematic review and meta-analysis. International Journal of Cardiology, 136(1), 4-16.
- Kiecolt-Glaser, J. K., Belury, M. A., Andridge, R., Malarkey, W. B., & Glaser, R. (2011). Omega-3 supplementation lowers inflammation and anxiety in medical students: A randomized controlled trial. Brain, Behavior, and Immunity, 25(8), 1725-1734.
- Kiecolt-Glaser, J. K., Belury, M. A., Andridge, R., Malarkey, W. B., & Glaser, R. (2011). Omega-3 supplementation lowers inflammation and anxiety in medical students: A randomized controlled trial. Brain, Behavior, and Immunity, 25(8), 1725-1734. https://doi.org/10.1016/j.bbi.2011.07.229
- Li, K., Huang, T., Zheng, J., Wu, K., & Li, D. (2014). Effect of marine-derived n-3 polyunsaturated fatty acids on C-reactive protein, interleukin 6 and tumor necrosis factor α: A meta-analysis. PLoS ONE, 9(2), e88103.
- Li, K., et al. (2014). Effect of marine-derived n-3 polyunsaturated fatty acids on C-reactive protein, interleukin 6 and tumor necrosis factor α: A meta-analysis. PLoS ONE, 9(2), e88103.
- Linus Pauling Institute. (n.d.). Essential fatty acids. Oregon State University. Retrieved from https://lpi.oregonstate.edu/mic/other-nutrients/essential-fatty-acids
- Miles, E. A., & Calder, P. C. (2012). Influence of marine n-3 polyunsaturated fatty acids on immune function and a systematic review of their effects on clinical outcomes in rheumatoid arthritis. British Journal of Nutrition, 107(Suppl. 2), S171-S184. https://doi.org/10.1017/S0007114512001560
- Morris, M. C., Sacks, F., & Rosner, B. (1993). Does fish oil lower blood pressure? A meta-analysis of controlled trials. Circulation, 88(2), 523-533. https://pubmed.ncbi.nlm.nih.gov/8339414/
- National Institutes of Health, Office of Dietary Supplements. (n.d.). Omega-3 fatty acids: Fact sheet for consumers. Retrieved from https://ods.od.nih.gov/factsheets/Omega3FattyAcids-Consumer/
- National Institutes of Health, Office of Dietary Supplements. (n.d.). Omega-3 fatty acids: Fact sheet for health professionals. Retrieved from https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/
- Natto, Z. S., Yaghmoor, W., Alshaeri, H. K., et al. (2019). Omega-3 fatty acids effects on inflammatory biomarkers and lipid profiles among diabetic and cardiovascular disease patients: A systematic review and meta-analysis. Scientific Reports, 9, 18867. https://doi.org/10.1038/s41598-019-54535-x
- Patel, K. (2021). Fish Oil. Examine.com.
- Shearer, G. C., Savinova, O. V., & Harris, W. S. (2012). Fish oil: How does it reduce plasma triglycerides? Biochimica et Biophysica Acta, 1821(5), 843-851. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3563284/
- Simopoulos, A. P. (2002). Omega-3 fatty acids in inflammation and autoimmune diseases. Journal of the American College of Nutrition, 21(6), 495-505.
- Su, K. P., Huang, S. Y., Chiu, C. C., & Shen, W. W. (2003). Omega-3 fatty acids in major depressive disorder: A preliminary double-blind, placebo-controlled trial. European Neuropsychopharmacology, 13(4), 267-271.
- Wu, J., Cho, E., Giovannucci, E. L., Rosner, B. A., Sastry, S. M., Willett, W. C., & Schaumberg, D. A. (2017). Dietary intakes of eicosapentaenoic acid and docosahexaenoic acid and risk of age-related macular degeneration. Ophthalmology, 124(5), 634-643. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5401792/