Last update
3/13/2026
Research Authors

Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 3 Researches
7.7
USERS' SCORE
Moderately Good
Based on 35 Reviews
7.3
Supplement Facts
Serving Size:   2 Softgels
Amount Per Serving
%DV
Calories
20
 
Total Fat
2 g
3%**
Saturated Fat
0.5 g
3%**
Polyunsaturated Fat
1 g
Monounsaturated Fat
0.5 g
Fish Oil Concentrate
2 g (2,000 mg)
Eicosapentaenoic Acid (EPA)
360 mg
Docosahexaenoic Acid (DHA)
240 mg
📅 Last updated:

Top Medical Research Studies

We conducted a double-blind randomized controlled trial to understand how prenatal supplementation of docosahexaenoic acid (DHA) might influence infant health, particularly concerning the common cold. Pregnant women were given either a daily dose of 400 mg of DHA or a placebo starting at 18 to 22 weeks of gestation until childbirth.

Caregivers then reported on their infants’ health at 1, 3, and 6 months, sharing details about common illness symptoms. We found that DHA supplementation appeared to reduce the number of colds at one month and also seemed to lessen the duration of various cold symptoms in infants. Specifically, infants in the DHA group experienced fewer cold symptoms and had shorter durations of cough and wheezing.

While the overall occurrence of specific illness symptoms was similar between the DHA and placebo groups, DHA did bring about noteworthy benefits. At 1 month, infants in the DHA group had a 26% shorter duration of cough and 30% shorter wheezing; however, they experienced a longer duration of rash.

Furthermore, by the time the infants reached 3 months, those whose mothers took DHA were ill for 14% less time overall. At 6 months, the DHA group showed significantly reduced durations of several illness indicators, although they did experience longer episodes of vomiting.

This study suggests that prenatal DHA not only seems to impact the occurrence of colds in children but may also play a role in the duration of symptoms over the first half-year of life.
Read More
7
Omega-3 effects on viral infections
We examined the MITIGATE study, focusing on the effects of icosapent ethyl (IPE), a purified omega-3 fatty acid, in adults with cardiovascular disease at risk for viral upper respiratory infections.

With about 16,500 participants, this clinical trial compared IPE treatment against usual care. The goal was to see if IPE could lessen the severity and impact of viral infections over six months.

Unfortunately, there was no significant evidence found that IPE improved outcomes for upper respiratory infections in this group.
Read More
We investigated whether feeding infants formula supplemented with docosahexaenoic acid (DHA) and arachidonic acid (ARA) could impact the development of allergies and respiratory illnesses until age three.

In a well-structured, randomized, double-blind study, we followed children who received either supplemented or nonsupplemented formulas during their first year of life. Our findings showed that those on the DHA/ARA formula had significantly lower chances of developing upper respiratory infections and common allergic diseases.

Notably, the DHA/ARA group experienced a delayed onset and reduced incidence of respiratory issues, indicating potential benefits of early nutrition on long-term health.
Read More

Most Useful Reviews

9
Prevents illness
131 people found this helpful
I've been taking Omega-3 daily for four months, and I haven't caught a common cold. I experienced outbreaks of herpes after a two-month break, so I'll resume taking it. If my review helped you, please like it.
Read More
9
No colds caught
19 people found this helpful
Initially, I pursued Omega-3 to balance hormonal levels and support my cardiovascular system, alongside treating varicose veins. Although hormonal improvement remains elusive, I've noticed significant benefits in my veins. I began my regimen during a very active vacation, walking 10-20 km daily. I experienced no colds this year, even with other supplements like garlic and vitamin C aiding my immune system.
Read More
9
Boosted immunity effect
7 people found this helpful
I adore this product! I regularly take it to maintain my immunity and I feel fantastic. I no longer suffer from headaches or winter colds, and I’ve experienced a surge of energy. My joints aren’t squeaking anymore, which was unpleasant previously. It’s a great product!
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 3 Researches
7.7
  • All Researches
We investigated whether feeding infants formula supplemented with docosahexaenoic acid (DHA) and arachidonic acid (ARA) could impact the development of allergies and respiratory illnesses until age three.

In a well-structured, randomized, double-blind study, we followed children who received either supplemented or nonsupplemented formulas during their first year of life. Our findings showed that those on the DHA/ARA formula had significantly lower chances of developing upper respiratory infections and common allergic diseases.

Notably, the DHA/ARA group experienced a delayed onset and reduced incidence of respiratory issues, indicating potential benefits of early nutrition on long-term health.
Read More
We conducted a double-blind randomized controlled trial to understand how prenatal supplementation of docosahexaenoic acid (DHA) might influence infant health, particularly concerning the common cold. Pregnant women were given either a daily dose of 400 mg of DHA or a placebo starting at 18 to 22 weeks of gestation until childbirth.

Caregivers then reported on their infants’ health at 1, 3, and 6 months, sharing details about common illness symptoms. We found that DHA supplementation appeared to reduce the number of colds at one month and also seemed to lessen the duration of various cold symptoms in infants. Specifically, infants in the DHA group experienced fewer cold symptoms and had shorter durations of cough and wheezing.

While the overall occurrence of specific illness symptoms was similar between the DHA and placebo groups, DHA did bring about noteworthy benefits. At 1 month, infants in the DHA group had a 26% shorter duration of cough and 30% shorter wheezing; however, they experienced a longer duration of rash.

Furthermore, by the time the infants reached 3 months, those whose mothers took DHA were ill for 14% less time overall. At 6 months, the DHA group showed significantly reduced durations of several illness indicators, although they did experience longer episodes of vomiting.

This study suggests that prenatal DHA not only seems to impact the occurrence of colds in children but may also play a role in the duration of symptoms over the first half-year of life.
Read More
7
Omega-3 effects on viral infections
We examined the MITIGATE study, focusing on the effects of icosapent ethyl (IPE), a purified omega-3 fatty acid, in adults with cardiovascular disease at risk for viral upper respiratory infections.

With about 16,500 participants, this clinical trial compared IPE treatment against usual care. The goal was to see if IPE could lessen the severity and impact of viral infections over six months.

Unfortunately, there was no significant evidence found that IPE improved outcomes for upper respiratory infections in this group.
Read More

User Reviews

USERS' SCORE
Moderately Good
Based on 35 Reviews
7.3
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Prevents illness
131 people found this helpful
I've been taking Omega-3 daily for four months, and I haven't caught a common cold. I experienced outbreaks of herpes after a two-month break, so I'll resume taking it. If my review helped you, please like it.
Read More
9
No colds caught
19 people found this helpful
Initially, I pursued Omega-3 to balance hormonal levels and support my cardiovascular system, alongside treating varicose veins. Although hormonal improvement remains elusive, I've noticed significant benefits in my veins. I began my regimen during a very active vacation, walking 10-20 km daily. I experienced no colds this year, even with other supplements like garlic and vitamin C aiding my immune system.
Read More
9
Boosted immunity effect
7 people found this helpful
I adore this product! I regularly take it to maintain my immunity and I feel fantastic. I no longer suffer from headaches or winter colds, and I’ve experienced a surge of energy. My joints aren’t squeaking anymore, which was unpleasant previously. It’s a great product!
Read More
7.5
Significant immunity boost
6 people found this helpful
Excellent! I used Omega-3 to lower cholesterol at my doctor's suggestion. Since completing my course, I’ve noticed improved immunity, fewer colds, and normalised blood pressure. I lost 7 kg without changing my diet. I plan to order more! I recommend it for health restoration!
Read More
9
Improved immunity
5 people found this helpful
Omega-3 is an excellent fish oil that my entire family takes, 1 capsule per day with meals. As the cold season approaches, we seem to be immune, which I attribute to our boosted immune systems. I recommend it. After three months of use and increasing my intake to 6-7 capsules daily as suggested in an Atkins book, my headaches ceased. I'd advise reading that book for its many useful recommendations. I purchased various dietary supplements online, which I found beneficial. If my review was helpful, please click Yes.
Read More

Frequently Asked Questions

9
Improved immunity
17 people found this helpful
Bought this for my husband and me, and we adore it! After a month of use, we've noticed our immunity improving, as we rarely catch the common cold. My skin looks more radiant and dewy. They are easy to swallow despite their size, and the quality is excellent at an economical price. Being from a reliable company, I trust this product in these challenging times when many sell counterfeit supplements. If you find my review helpful, please thumbs up! Thank you!
9
Winter skin hydration
2 people found this helpful
I've been taking this omega-3 for over two months per my doctor's advice due to my constant cold, and it has helped. Even in winter, my skin remains hydrated and I feel better overall, with no difficulty swallowing the capsules.
9
Prevents illness
131 people found this helpful
I've been taking Omega-3 daily for four months, and I haven't caught a common cold. I experienced outbreaks of herpes after a two-month break, so I'll resume taking it. If my review helped you, please like it.
9
Reduced colds
2 people found this helpful
The price and volume are commendable. We have been taking this for a few months, and my husband did not get sick this winter; colds had little effect on him. He generally suffers from a persistent cough, but thankfully, that has not been the case this year, and he only took Omega-3 twice a day. I've even ordered for my parents.
9
Skin improvements
3 people found this helpful
Delight! I’ve been taking omega for the second winter season and it has exceeded my expectations. My hands no longer crack or dry, plus I feel more awake during winter. A lovely side effect has been my glowing skin. If you find my review useful, please let me know!
7.5
Enhances well-being
I ordered Omega-3 along with other vitamins and started taking it ten days ago. The capsules are easy to swallow and have positively impacted my mood during this dreary season.
9
No colds caught
19 people found this helpful
Initially, I pursued Omega-3 to balance hormonal levels and support my cardiovascular system, alongside treating varicose veins. Although hormonal improvement remains elusive, I've noticed significant benefits in my veins. I began my regimen during a very active vacation, walking 10-20 km daily. I experienced no colds this year, even with other supplements like garlic and vitamin C aiding my immune system.
7.5
Less frequent colds
1 people found this helpful
I consistently order Omega-3 for my family and have noticed significantly fewer colds. In my opinion, this is one of the best Omega-3s available, offering excellent quality for the price. Give it a try and see the difference.
7.5
Strengthens immune response
We take Omega-3 ourselves and give it to our adult children. It’s a beneficial supplement that strengthens the immune system during cold season, making our bodies less susceptible to viruses, especially when seafood isn’t a regular part of our diet.
9
Significant coldness relief
2 people found this helpful
Since I started taking this over a year and a half ago, I barely notice the coldness in my limbs. I've struggled with this since my twenties. I continue taking one tablet a day post-supper, finding it beneficial for my coldness and skin.
9
Improved immunity
5 people found this helpful
Omega-3 is an excellent fish oil that my entire family takes, 1 capsule per day with meals. As the cold season approaches, we seem to be immune, which I attribute to our boosted immune systems. I recommend it. After three months of use and increasing my intake to 6-7 capsules daily as suggested in an Atkins book, my headaches ceased. I'd advise reading that book for its many useful recommendations. I purchased various dietary supplements online, which I found beneficial. If my review was helpful, please click Yes.
7.5
Healthy skin improvement
269 people found this helpful
Everyone knows that Omega-3 is a reservoir of nutrients that positively affects well-being and appearance. I remember being made to drink cod-liver oil as a child. Omega-3 fatty acids are a treasure in fish oil. My journey with iHerb began with a search for fish oil. I started with a few capsules to assess my body's reaction. The capsules are a lovely transparent yellow and have no smell, making them easy to swallow. I followed the manufacturer's advice of taking two capsules twice daily without breaks. My results: my skin is less dry; I haven’t suffered from colds; and my gastrointestinal system has improved. I will continue taking Omega-3, but I intend to buy a larger bottle.
7
Omega-3 effects on viral infections
We examined the MITIGATE study, focusing on the effects of icosapent ethyl (IPE), a purified omega-3 fatty acid, in adults with cardiovascular disease at risk for viral upper respiratory infections.

With about 16,500 participants, this clinical trial compared IPE treatment against usual care. The goal was to see if IPE could lessen the severity and impact of viral infections over six months.

Unfortunately, there was no significant evidence found that IPE improved outcomes for upper respiratory infections in this group.
We conducted a double-blind randomized controlled trial to understand how prenatal supplementation of docosahexaenoic acid (DHA) might influence infant health, particularly concerning the common cold. Pregnant women were given either a daily dose of 400 mg of DHA or a placebo starting at 18 to 22 weeks of gestation until childbirth.

Caregivers then reported on their infants’ health at 1, 3, and 6 months, sharing details about common illness symptoms. We found that DHA supplementation appeared to reduce the number of colds at one month and also seemed to lessen the duration of various cold symptoms in infants. Specifically, infants in the DHA group experienced fewer cold symptoms and had shorter durations of cough and wheezing.

While the overall occurrence of specific illness symptoms was similar between the DHA and placebo groups, DHA did bring about noteworthy benefits. At 1 month, infants in the DHA group had a 26% shorter duration of cough and 30% shorter wheezing; however, they experienced a longer duration of rash.

Furthermore, by the time the infants reached 3 months, those whose mothers took DHA were ill for 14% less time overall. At 6 months, the DHA group showed significantly reduced durations of several illness indicators, although they did experience longer episodes of vomiting.

This study suggests that prenatal DHA not only seems to impact the occurrence of colds in children but may also play a role in the duration of symptoms over the first half-year of life.
We investigated whether feeding infants formula supplemented with docosahexaenoic acid (DHA) and arachidonic acid (ARA) could impact the development of allergies and respiratory illnesses until age three.

In a well-structured, randomized, double-blind study, we followed children who received either supplemented or nonsupplemented formulas during their first year of life. Our findings showed that those on the DHA/ARA formula had significantly lower chances of developing upper respiratory infections and common allergic diseases.

Notably, the DHA/ARA group experienced a delayed onset and reduced incidence of respiratory issues, indicating potential benefits of early nutrition on long-term health.

References

  1. Ambrosy AP, Malik UI, Thomas RC, Parikh RV, Tan TC, et al. Rationale and design of the pragmatic randomized trial of icosapent ethyl for high cardiovascular risk adults (MITIGATE). Am Heart J. 2021;235:54. 10.1016/j.ahj.2021.01.018
  2. Birch EE, Khoury JC, Berseth CL, Castañeda YS, Couch JM, et al. The impact of early nutrition on incidence of allergic manifestations and common respiratory illnesses in children. J Pediatr. 2010;156:902. 10.1016/j.jpeds.2010.01.002
  3. Imhoff-Kunsch B, Stein AD, Martorell R, Parra-Cabrera S, Romieu I, et al. Prenatal docosahexaenoic acid supplementation and infant morbidity: randomized controlled trial. Pediatrics. 2011;128:e505. 10.1542/peds.2010-1386
Data last updated:
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