Supplement Facts
Serving Size: 1 vegan softgel
Amount Per Serving
%DV
Calories
5
_
Total Fat
0.5 g
<1%‡
Microalgae Oil (40% DHA)which typically provides:
500 mg
*
DHA (Docosahexaenoic Acid) [Ω-3]
200 mg
*
The product is found useful for the following medical conditions
Allergies details
SCIENTIFIC SCORE
Possibly Effective
Based on 28 Researches
7.6
USERS' SCORE
Good
Based on 6 Reviews
8.7
8
We discovered that a diet enriched with omega-3 fatty acids can effectively reduce symptoms of allergic conjunctivitis (AC) in mice. This reduction occurred without influencing the typical immune responses usually associated with allergies. Instead, omega-3s worked by changing the lipid molecules linked to inflammation.
Notably, these fatty acids completely suppressed itching near the eyes and significantly decreased the presence of eosinophils, cells commonly involved in allergic reactions. However, total serum IgE levels and T2 cytokine expression remained unchanged, suggesting that omega-3s tackle AC symptoms in a unique way.
Notably, these fatty acids completely suppressed itching near the eyes and significantly decreased the presence of eosinophils, cells commonly involved in allergic reactions. However, total serum IgE levels and T2 cytokine expression remained unchanged, suggesting that omega-3s tackle AC symptoms in a unique way.
9
Immediate moisturising effect
Most Useful Review
2 people found this helpful
The ingredients are excellent and suitable for my fish allergies. The quality is fantastic as I noticed an immediate moisturising effect on my skin from the second day. I also appreciate that there is no aftertaste; it is sweet and easy to swallow.
Updated: Mar 2026
Arthritis details
SCIENTIFIC SCORE
Possibly Effective
Based on 26 Researches
7.3
USERS' SCORE
Good
Based on 3 Reviews
8.6
8
We analyzed various trials to see how omega-3 fish oil affects rheumatoid arthritis (RA). Our research included 18 randomized controlled studies with 1,018 RA patients. The results showed omega-3 supplementation significantly increased beneficial omega-3 fatty acids, like EPA and DHA, and reduced triglycerides and tender joint count.
However, it didn't lead to significant changes in some inflammation markers and overall disease activity. While there are positive outcomes regarding certain symptoms, we found no remarkable evidence for its effectiveness in reducing inflammation levels.
However, it didn't lead to significant changes in some inflammation markers and overall disease activity. While there are positive outcomes regarding certain symptoms, we found no remarkable evidence for its effectiveness in reducing inflammation levels.
9
Reduces inflammation
Most Useful Review
105 people found this helpful
Phenomenal product! Omega-3s are renowned for enhancing heart health and lowering triglycerides. Studies indicate they may aid conditions like rheumatoid arthritis. Since starting DEVA algae pills over a year ago, I notice when I forget to take them; I feel stiffer and achier. It's as though my joints are not lubricated, akin to a car engine needing oil. This product, free from GMOs and suitable for vegans, stands out due to its microalgae source, devoid of ocean contaminants. I encourage those taking fish oil to consider where the fish source their Omega-3s: from algae!
Updated: Apr 2025
Heart Disease details
SCIENTIFIC SCORE
Possibly Effective
Based on 31 Researches
7.7
USERS' SCORE
Good
Based on 2 Reviews
8.6
9
We examined the relationship between plasma omega-3 levels and heart failure (HF), focusing on how this affects mortality in patients with existing HF. Our analysis of the UK Biobank, which included nearly 272,000 participants without HF, showed that higher omega-3 levels were linked to a 21% lower risk of developing HF over nearly 14 years.
For those already diagnosed with HF, higher omega-3 levels significantly reduced the risk of all-cause and cardiovascular mortality by around 50%. These findings suggest that boosting omega-3 intake could be beneficial for heart health.
For those already diagnosed with HF, higher omega-3 levels significantly reduced the risk of all-cause and cardiovascular mortality by around 50%. These findings suggest that boosting omega-3 intake could be beneficial for heart health.
9
Maintains heart health
Most Useful Review
1 people found this helpful
Deva Omega 3 DHA is an excellent vegan supplement. These tablets are easy to consume and effective. Omega-3 fatty acids support heart, eye, and nervous system health. Since taking these, I’ve noticed improvements in my health overall. They are gluten-free and vegan-friendly, making them a great choice for heart health.
Updated: Mar 2026
Reflux details
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 3 Reviews
8.6
8
We investigated the role of resolvin D1 (RvD1) in protecting esophageal epithelial cells from damage caused by acid reflux. Through exposure tests, we found that RvD1 could effectively block oxidative stress and DNA damage linked to acid exposure.
Notably, RvD1 not only reduced harmful reactive oxygen species but also enhanced the cell's ability to repair DNA damage, signaling a promising potential for treatment in patients with gastroesophageal reflux disease. However, we need more studies to confirm its benefits in clinical settings.
Notably, RvD1 not only reduced harmful reactive oxygen species but also enhanced the cell's ability to repair DNA damage, signaling a promising potential for treatment in patients with gastroesophageal reflux disease. However, we need more studies to confirm its benefits in clinical settings.
9
Easy on reflux
Most Useful Review
The red capsules are smooth and easy to swallow. They don't leave a fishy taste or cause reflux like fish omegas do. This vegan product is of good quality and value.
Updated: Mar 2026
Chronic Fatigue Syndrome details
SCIENTIFIC SCORE
Possibly Effective
Based on 4 Researches
7.3
USERS' SCORE
Good
Based on 2 Reviews
8.5
8
Eicosapentaenoic acid shows potential
We assessed how eicosapentaenoic acid, an essential fatty acid, impacts chronic fatigue syndrome (CFS). A group of CFS patients took a specific supplement rich in this fatty acid. Remarkably, every participant reported symptom improvement within eight to twelve weeks.
These findings align with other research that shows the positive effects of eicosapentaenoic acid, hinting that it could be a promising treatment option for some individuals living with CFS.
These findings align with other research that shows the positive effects of eicosapentaenoic acid, hinting that it could be a promising treatment option for some individuals living with CFS.
9
Increased energy
Most Useful Review
I was initially hesitant about this substitute for another vegetarian Omega-3. However, this product has been perfect and has no unpleasant aftertaste. Since taking Omega-3, I feel far more energetic, shaking off the stress and fatigue that had plagued me, including symptoms of chronic fatigue syndrome. I'm committed to ordering this from Korea. Thank you, iHerb!
Updated: Mar 2026
Headache details
SCIENTIFIC SCORE
Possibly Effective
Based on 19 Researches
7.3
USERS' SCORE
Good
Based on 4 Reviews
8.5
9.5
We examined the effects of eicosapentaenoic acid (EPA) on episodic migraine patients through a 12-week randomized double-blind trial. Seventy participants were divided into two groups, one receiving EPA and the other a placebo.
Those taking the EPA experienced significant decreases in migraine frequency, medication use, headache severity, and improvements in overall quality of life.
Notably, women benefitted particularly from this treatment. Overall, high-dose EPA showed promise as an effective preventive option for episodic migraines, with no major side effects observed.
Those taking the EPA experienced significant decreases in migraine frequency, medication use, headache severity, and improvements in overall quality of life.
Notably, women benefitted particularly from this treatment. Overall, high-dose EPA showed promise as an effective preventive option for episodic migraines, with no major side effects observed.
9
Headache relief
Most Useful Review
1 people found this helpful
I used to prefer animal omega, but it didn't suit me. This omega combined with 5-htp interestingly alleviated my headache. The price-quality ratio is satisfactory.
Updated: Mar 2026
Nausea details
SCIENTIFIC SCORE
Questionable
Based on 4 Researches
6.5
USERS' SCORE
Good
Based on 3 Reviews
8.5
7
We aimed to see how omega-3 fatty acids from fish oil could ease nausea and other symptoms in patients with advanced lung cancer suffering from Systemic Immune-Metabolic Syndrome (SIMS). The study involved a small group of patients divided into treatment groups, some receiving fish oil and others a combination of fish oil with celecoxib.
After six weeks, we noted improvements in appetite, fatigue, and lower inflammation markers in both fish oil groups. Interestingly, those who received fish oil alongside celecoxib showed even greater benefits in weight gain and muscle strength. These findings suggest that fish oil may help manage certain symptoms associated with nausea but not specifically reduce it alone.
After six weeks, we noted improvements in appetite, fatigue, and lower inflammation markers in both fish oil groups. Interestingly, those who received fish oil alongside celecoxib showed even greater benefits in weight gain and muscle strength. These findings suggest that fish oil may help manage certain symptoms associated with nausea but not specifically reduce it alone.
9
Nausea relieved
Most Useful Review
37 people found this helpful
Pregnant safe :). I was concerned about reviews stating this pill had a fishy taste/smell. However, being vegetarian, I was eager to ensure my baby and I received the proper nutrients, so I gave it a try. I'm glad I did! Now, nearing the end of my pregnancy, I'm still very pleased with this pill. It even didn’t trouble me during my first trimester nausea. I refrigerate the pills as suggested by another reviewer. If you're undecided about trying this, I recommend going for it.
Updated: Mar 2026
Depression details
SCIENTIFIC SCORE
Questionable
Based on 24 Researches
6.9
USERS' SCORE
Good
Based on 3 Reviews
8.4
7
We conducted a study to see if omega-3 fatty acids could help people with major depressive disorder as a standalone treatment. Over 12 weeks, 60 participants took either omega-3 supplements or a placebo.
Results showed that those taking omega-3 had lower depression scores at various points throughout the study. While there were hints of improved outcomes in terms of remission and response rates, these weren't statistically significant.
Overall, omega-3 fatty acids could be a promising alternative, but further research is necessary to confirm their effectiveness.
Results showed that those taking omega-3 had lower depression scores at various points throughout the study. While there were hints of improved outcomes in terms of remission and response rates, these weren't statistically significant.
Overall, omega-3 fatty acids could be a promising alternative, but further research is necessary to confirm their effectiveness.
9
Alleviates depression
Most Useful Review
2 people found this helpful
I began taking this vegan DHA during my pregnancy, and I’ve continued as it significantly alleviates my depression. I've tried other brands, but none have worked as effectively as Deva.
Updated: Mar 2026
Cardiovascular Disease details
SCIENTIFIC SCORE
Possibly Effective
Based on 29 Researches
7.5
USERS' SCORE
Good
Based on 4 Reviews
8.3
9
We investigated the link between plasma omega-3 levels and the risk of heart failure (HF) in a large UK cohort study. Our analysis revealed that higher omega-3 levels were associated with a 21% lower chance of developing HF over nearly 14 years.
For individuals already diagnosed with HF, elevated omega-3 levels corresponded to about a 50% reduction in the risk of overall and cardiovascular mortality. These results suggest that boosting omega-3 intake through diet or supplements may help prevent HF and increase longevity for those already facing heart challenges.
For individuals already diagnosed with HF, elevated omega-3 levels corresponded to about a 50% reduction in the risk of overall and cardiovascular mortality. These results suggest that boosting omega-3 intake through diet or supplements may help prevent HF and increase longevity for those already facing heart challenges.
9
Environmental choice
Most Useful Review
Deva Vegan Omega-3 DHA is remarkable! These 90 vegan softgels are rich in DHA, essential for brain and heart health while being environmentally friendly. With strict quality control, they contain no artificial additives and are easy to swallow, offering an excellent health choice.
Updated: Mar 2026
Heart Attack details
SCIENTIFIC SCORE
Possibly Effective
Based on 30 Researches
7.2
USERS' SCORE
Good
Based on 2 Reviews
8.3
9
Omega-3s' mixed effects on heart health
We examined the impact of omega-3 fatty acids, often found in fish oil, on heart attack risks, particularly in patients with high triglyceride levels. The studies indicate that while omega-3s can effectively lower triglycerides and reduce certain cardiovascular disease outcomes, including fatal heart attacks, their overall benefit remains debated. Despite extensive research demonstrating some positive outcomes, many experts still question the magnitude of their effects on heart attack prevention. Improved guidance on omega-3 supplementation is still evolving as new evidence emerges.
7.5
Heart health improvement
Most Useful Review
1 people found this helpful
My dad has taken this excellent supplement for years, and it aids in maintaining his heart's healthy function. A great source of omega.
Updated: Apr 2025
Knee Pain details
SCIENTIFIC SCORE
Possibly Effective
Based on 17 Researches
7.3
USERS' SCORE
Good
Based on 4 Reviews
8.3
We explored whether purified docosahexaenoic acid (DHA), an omega-3 fatty acid, can ease knee pain and swelling in a mouse model of arthritis. Mice with arthritis were treated with either oral or injected DHA, and we observed notable improvements in pain behavior and knee swelling.
This study highlights that DHA may reduce pain and inflammation in knee arthritis, suggesting it could be a helpful option for those suffering from rheumatoid arthritis. However, it’s essential to keep in mind that these results come from an animal model, and human studies are necessary.
This study highlights that DHA may reduce pain and inflammation in knee arthritis, suggesting it could be a helpful option for those suffering from rheumatoid arthritis. However, it’s essential to keep in mind that these results come from an animal model, and human studies are necessary.
9
Vegan supplement benefits
Most Useful Review
This supplement is fantastic for my knee pain. I need to take a DHA/EPA supplement regularly to avoid the pain, and I appreciate that this one is vegan sourced with quality ingredients.
Updated: Mar 2026
Cancer details
SCIENTIFIC SCORE
Possibly Effective
Based on 30 Researches
7.6
USERS' SCORE
Moderately Good
Based on 2 Reviews
7.8
8
We explored the impact of a high omega-3, low omega-6 diet with fish oil on men with prostate cancer under active surveillance. In a year-long study involving 100 participants, those following the omega-rich regimen showed a notable 15% decrease in the Ki-67 index, a key marker for cancer progression.
In contrast, the control group experienced an increase in this index. While the diet showed promise in slowing down potential cancer growth, no significant differences were noted in other cancer-related measurements. Our findings encourage further research on dietary strategies in prostate cancer management.
In contrast, the control group experienced an increase in this index. While the diet showed promise in slowing down potential cancer growth, no significant differences were noted in other cancer-related measurements. Our findings encourage further research on dietary strategies in prostate cancer management.
2
Irritating side effects
Most Useful Review
12 people found this helpful
Highly irritating orange oil gave me interstitial cystitis. I've taken this supplement for years, and never suspected a link until now. I've eliminated irritants related to IC, and stopped taking the deva dha; my symptoms improved within a week. I hope the prolonged inflammation hasn't led to bladder cancer.
Updated: Apr 2025
High Cholesterol details
SCIENTIFIC SCORE
Moderately Effective
Based on 28 Researches
8.1
USERS' SCORE
Moderately Good
Based on 5 Reviews
7.5
9
We conducted a comprehensive trial to understand how different types of omega-3 fatty acids affect cholesterol levels and inflammation in adults struggling with high cholesterol.
Over 12 weeks, participants took various doses of omega-3s, including EPA and DHA, revealing notable benefits. Those receiving higher doses of EPA and DHA saw their triglycerides drop significantly—by up to 15.78%—compared to controls.
Interestingly, ALA supplementation did not lead to improvements in cholesterol or inflammation status, highlighting the superior role of EPA and DHA in managing these health issues.
Over 12 weeks, participants took various doses of omega-3s, including EPA and DHA, revealing notable benefits. Those receiving higher doses of EPA and DHA saw their triglycerides drop significantly—by up to 15.78%—compared to controls.
Interestingly, ALA supplementation did not lead to improvements in cholesterol or inflammation status, highlighting the superior role of EPA and DHA in managing these health issues.
7.5
Visible improvement
Most Useful Review
4 people found this helpful
I noticed visible changes in my skin within a week of taking a high dose of 6 softgels daily. My skin became smoother and pores finer. Studies suggest that a higher omega-3 intake may help prevent brain shrinkage with age. I found that one softgel daily was ineffective; at least three per day, one with each meal, is necessary for it to work well, particularly in managing high cholesterol.
Updated: Mar 2026
Data last updated:
