Supplement Facts
Serving Size: 1 Teaspoon (5 ml)
Amount Per Serving
%DV
Calories
40
Total Fat
4.5 g
6%**
Saturated Fat
0.5 g
3%**
Cholesterol
15 mg
5%
Vitamin A (from cod liver oil and retinyl palmitate)
255 mcg RAE(850 IU)
28%
Vitamin D (from cod liver oil and cholecalciferol)
10 mcg (400 IU)
50%
Vitamin E (as d-alpha tocopherol)
6.7 mg
45%
Norwegian Cod Liver Oil
4.6 g
†
Total Omega-3 Fatty Acids*
1,100 mg
†
DHA (Docosahexaenoic Acid)*
500 mg
†
EPA (Eicosapentaenoic Acid)*
370 mg
†
DPA (Docosapentaenoic Acid)*
50 mg
†
The product is found useful for the following medical conditions
Autoimmune Disorder details
SCIENTIFIC SCORE
Possibly Effective
Based on 41 Researches
7.8
USERS' SCORE
Good
Based on 5 Reviews
8.6
9
Cod liver oil aids rheumatoid arthritis
In a recent study involving 43 patients suffering from rheumatoid arthritis, we explored the impact of taking 1 gram of cod liver oil daily for three months. The results were striking. We observed notable reductions in morning stiffness by an impressive 52.4%, alongside decreases in both painful and swollen joints, each showing a 40% improvement. Pain intensity also saw a significant drop of 67.5%.
Additionally, the feedback from the patients was overwhelmingly positive. Approximately 68% reported that the treatment was effective, while a remarkable 95% praised its tolerability. However, it’s worth noting that 11 patients did experience some nonsevere adverse effects, but only three of those were possibly related to the cod liver oil itself.
Overall, it seems that cod liver oil can indeed offer relief for those grappling with rheumatoid arthritis, making it a treatment worth considering for improving symptoms of this autoimmune disorder.
Additionally, the feedback from the patients was overwhelmingly positive. Approximately 68% reported that the treatment was effective, while a remarkable 95% praised its tolerability. However, it’s worth noting that 11 patients did experience some nonsevere adverse effects, but only three of those were possibly related to the cod liver oil itself.
Overall, it seems that cod liver oil can indeed offer relief for those grappling with rheumatoid arthritis, making it a treatment worth considering for improving symptoms of this autoimmune disorder.
9
Highly recommend fish oil
Most Useful Review
29 people found this helpful
I have tried various fish oil brands, and this one is by far the best. Its effects are noticeable quickly, and I have ordered it again. I highly recommend this product!
Updated: Apr 2025
Blurred Vision details
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.6
10
Vision improvement
Most Useful Review
1 people found this helpful
My vision has improved and my astigmatism has disappeared. It went from 0.7 to 1.5.
Updated: Apr 2025
Arthritis details
SCIENTIFIC SCORE
Possibly Effective
Based on 42 Researches
7.2
USERS' SCORE
Good
Based on 7 Reviews
8.5
9
Cod liver oil reduces arthritis symptoms
In a recent study, we examined the effectiveness of cod liver oil in alleviating symptoms of rheumatoid arthritis. Forty-three participants took 1 gram of cod liver oil daily for three months. The results were promising.
We observed significant reductions in morning stiffness, with an impressive 52.4% improvement. Additionally, patients reported a 42.7% decrease in painful joints and a 40% reduction in swollen joints. Pain intensity also saw a notable decline of 67.5%.
When asked about their experience, 68% of patients rated the treatment as "good" or "very good" in terms of effectiveness, and an impressive 95% found it tolerable. While some patients reported nonsevere side effects, three of those reactions might have been linked to the cod liver oil.
Overall, we find that cod liver oil could be a beneficial addition to treatment options for those suffering from rheumatoid arthritis.
We observed significant reductions in morning stiffness, with an impressive 52.4% improvement. Additionally, patients reported a 42.7% decrease in painful joints and a 40% reduction in swollen joints. Pain intensity also saw a notable decline of 67.5%.
When asked about their experience, 68% of patients rated the treatment as "good" or "very good" in terms of effectiveness, and an impressive 95% found it tolerable. While some patients reported nonsevere side effects, three of those reactions might have been linked to the cod liver oil.
Overall, we find that cod liver oil could be a beneficial addition to treatment options for those suffering from rheumatoid arthritis.
8.5
Visible improvements
Most Useful Review
525 people found this helpful
Since I started taking Carlson's CLO a few weeks ago, I've seen visible improvements in my health. At 31, I've struggled with stiffness, especially in the morning and my back, as arthritis runs in my family. This CLO has eased my stiffness considerably, reducing the achiness I used to feel. I've also noticed better memory and focus due to the DHA in the oil. Surprisingly, this December, I haven’t felt the winter blues as I usually do. I highly recommend this oil, as it has greatly benefitted me.
Updated: Apr 2025
Attention Deficit Hyperactivity Disorder details
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.5
9
Hair loss improvement
Most Useful Review
Hair loss is no longer a concern! Since I started taking cod liver oil, my hair shedding has almost ceased. I had issues with my endocrine system and poor hair health. This supplement has made a significant difference. While I need to focus on overall healthy eating—such as reducing refined sugar—cod liver oil is definitely beneficial for me. I'm truly grateful for this product! The taste is pleasant, and I absolutely love it!
Updated: Apr 2025
Asthma details
SCIENTIFIC SCORE
Possibly Effective
Based on 30 Researches
7.1
USERS' SCORE
Good
Based on 2 Reviews
8.4
9
We aimed to understand how dietary intake of docosahexaenoic acid (DHA) relates to asthma in children. This investigation was based on a substantial group of 14,727 participants from the National Health and Nutrition Examination Survey (NHANES), which provided a comprehensive view of dietary habits and health outcomes over nearly two decades.
In our findings, we observed that asthma was reported in about 15.38% of the participants. Interestingly, we found a notable negative association between DHA intake and asthma prevalence. Specifically, children who consumed higher levels of DHA showed a lower likelihood of having asthma, with the odds especially favorable for boys, children aged 5 to 12 years, and those whose mothers smoked during pregnancy.
The data indicated that DHA, along with other omega-3 fatty acids like eicosapentaenoic acid (EPA), can play a protective role against childhood asthma. These findings suggest that encouraging a diet rich in these healthy fats could be beneficial in reducing asthma risk in young children, particularly among specific groups at greater risk.
In our findings, we observed that asthma was reported in about 15.38% of the participants. Interestingly, we found a notable negative association between DHA intake and asthma prevalence. Specifically, children who consumed higher levels of DHA showed a lower likelihood of having asthma, with the odds especially favorable for boys, children aged 5 to 12 years, and those whose mothers smoked during pregnancy.
The data indicated that DHA, along with other omega-3 fatty acids like eicosapentaenoic acid (EPA), can play a protective role against childhood asthma. These findings suggest that encouraging a diet rich in these healthy fats could be beneficial in reducing asthma risk in young children, particularly among specific groups at greater risk.
9
Effective for asthma
Most Useful Review
2 people found this helpful
Asthma. My son used it for asthma, which he has struggled with for years. After using it at night, he said he felt much better and would take it daily.
Updated: Apr 2025
Chronic Cough details
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.3
7.5
No more colds
Most Useful Review
Effective oil! It has a distinct fish taste but it’s bearable. As someone who often suffers from chronic cough due to tonsillitis, I noticed that I stopped getting ill altogether! I also discontinued coca and started consuming this oil alongside evening primrose oil, which led to my cycle recovering after a year of issues. Five stars!
Updated: Mar 2025
Cold details
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 12 Reviews
8.3
7.5
Reduces symptoms
Most Useful Review
19 people found this helpful
I hope I don't jinx it. Carlson's CLO has greatly improved my routine. After a month of use, I've noted remarkable results. I tend to catch colds and flu often, but since I began this oil, I haven't fallen ill. It has also improved my skin, reducing breakouts and aiding in healing, especially during the winter months.
Updated: Apr 2025
Adenoiditis details
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.2
7.5
Promotes liver health
Most Useful Review
Mumtaz Excellent quality with natural ingredients is essential for liver health. Extracted from fish, it offers great benefits including Omega 3, aiding in reducing harmful cholesterol and supporting hair growth. Despite its unpleasant taste, I continue to take it daily, as it has proven beneficial for my sore throat, joints, and overall well-being.
Updated: Apr 2025
Liver Disease details
SCIENTIFIC SCORE
Possibly Effective
Based on 40 Researches
7.7
USERS' SCORE
Good
Based on 2 Reviews
8.2
9
We investigated the potential of DHA-enriched phosphatidylserine (DHA-PS) in addressing liver injuries caused by cyclophosphamide in mice. By administering cyclophosphamide over five days, we created a model to simulate this liver damage. Following this, we treated the mice with different doses of DHA-PS for a week to see if it could help heal their livers.
Our findings were quite promising. The mice receiving DHA-PS experienced significant improvements in key liver health indicators, including reduced inflammation and oxidative stress. Through advanced analysis, we discovered that DHA-PS helped correct metabolic imbalances caused by cyclophosphamide, which is a crucial aspect of liver recovery.
Additionally, we observed that DHA-PS has a positive impact on the gut-liver axis. This treatment restored the intestinal barrier, reduced harmful compounds in the bloodstream, and improved overall gut microbiota health. By balancing the gut bacteria, we enhanced the overall health of the mice.
Overall, the results suggest that DHA-PS could be a valuable therapeutic option or functional food for combating liver injuries related to cyclophosphamide. This study highlights the potential benefits of DHA on liver health and underscores the importance of the gut-liver connection.
Our findings were quite promising. The mice receiving DHA-PS experienced significant improvements in key liver health indicators, including reduced inflammation and oxidative stress. Through advanced analysis, we discovered that DHA-PS helped correct metabolic imbalances caused by cyclophosphamide, which is a crucial aspect of liver recovery.
Additionally, we observed that DHA-PS has a positive impact on the gut-liver axis. This treatment restored the intestinal barrier, reduced harmful compounds in the bloodstream, and improved overall gut microbiota health. By balancing the gut bacteria, we enhanced the overall health of the mice.
Overall, the results suggest that DHA-PS could be a valuable therapeutic option or functional food for combating liver injuries related to cyclophosphamide. This study highlights the potential benefits of DHA on liver health and underscores the importance of the gut-liver connection.
7.5
Improved condition
Most Useful Review
2 people found this helpful
I’ve been taking Carlson cod liver oil for over two weeks as my doctor recommended it for my dry eyes, and it has really helped. My mother, who suffered from vitamin D deficiency and felt weak, started using it for a month and has noticed significant improvement. It’s a quality product that I’m quite pleased with.
Updated: Mar 2026
Common Cold details
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 9 Reviews
8
8
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.
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.
9
Knee pain relief
Most Useful Review
As a 50-year-old man, I initially thought cod liver oil was for older folks. After two years of use, I discovered it significantly relieves my knee pain. I take a teaspoon every morning, and after a month, the pain during movement vanished. If I run out, I notice a return of discomfort, so I consistently reorder it. Although the taste can be off-putting, the benefits for knee pain outweigh that.
Updated: Mar 2026
High Cholesterol details
SCIENTIFIC SCORE
Possibly Effective
Based on 53 Researches
7.1
USERS' SCORE
Good
Based on 8 Reviews
8
9
DHA lowers cholesterol; boosts metabolism
We aimed to investigate how docosahexaenoic acid (DHA) impacts cholesterol levels and brain glucose metabolism. In our study, we focused on aged SAMP8 mice, dividing them into two groups: a control group and one receiving DHA supplementation.
Our results revealed encouraging changes; the group that received DHA showed a decrease in total cholesterol and low-density lipoprotein cholesterol, while high-density lipoprotein cholesterol levels increased. More importantly, we observed improvements in glucose metabolism in various brain regions, including the cortex and hippocampus.
These findings suggest that DHA may help lower harmful cholesterol levels and enhance brain function by regulating specific cholesterol compounds like 27-hydroxycholesterol, which are linked to glucose metabolism. Overall, our study highlights DHA's potential in supporting heart and brain health through cholesterol management.
Our results revealed encouraging changes; the group that received DHA showed a decrease in total cholesterol and low-density lipoprotein cholesterol, while high-density lipoprotein cholesterol levels increased. More importantly, we observed improvements in glucose metabolism in various brain regions, including the cortex and hippocampus.
These findings suggest that DHA may help lower harmful cholesterol levels and enhance brain function by regulating specific cholesterol compounds like 27-hydroxycholesterol, which are linked to glucose metabolism. Overall, our study highlights DHA's potential in supporting heart and brain health through cholesterol management.
9
Best brand choice
Most Useful Review
2 people found this helpful
Excellent quality! Among healthy fats, I prefer Carlson. When choosing omega-3, focus on DHA concentration, as it’s vital for the body. Ensure high EPA and DHA levels in the formula for optimal benefits in managing high cholesterol.
Updated: Mar 2026
Heart Disease details
SCIENTIFIC SCORE
Possibly Effective
Based on 57 Researches
7.5
USERS' SCORE
Medium or Average
Based on 19 Reviews
6.7
9
We investigated how cod liver oil affects coronary artery disease in pigs on a high-fat diet over eight months. By comparing 7 pigs that received cod liver oil to 11 control pigs, we observed significantly less disease in the oil-fed group. Notably, lesion size and arterial narrowing were reduced, suggesting that cod liver oil may influence heart health. Both groups had high lipid levels, but the differences in atherosclerosis weren't linked to these levels. This study hints at the oil's potential to slow coronary disease progression via changes in metabolism.
7.5
Improves heart health
Most Useful Review
4 people found this helpful
Cod liver oil is vital for skin health and clarity, delaying aging. It supports heart health and combatting heart disease and strokes. Additionally, it plays a crucial role in memory support and nervous system function under stress, reduces the risk of diabetes, and enhances immunity against bacteria and viruses. Furthermore, it lowers triglycerides and cholesterol. Unlike regular fish oils derived from fish tissues, cod liver oil is extracted from the liver of cod fish, providing higher levels of vitamins A and D.
Updated: Mar 2026
Data last updated:
