Supplement Facts
Serving Size: 1 Soft Gel
Amount Per Serving
%DV
Calories
5
Total Fat
0.5 g
1%**
Cholesterol
<5mg
<2%
Vitamin A (from cod live oil and retinyl palmitate)
27 mcg RAE
3%
Vitamin D (as cholecalciferol) (from cod liver oil and cholecalciferol concentrate)
100 mcg (4,000 IU)
500%
Vitamin E (as d-alpha tocopherol)
0.67 mg
4%
Norwegian Cod Liver Oil
500 mg
†
Total Omega-3 fatty Acids☆
115 mg
†
DHA (Docosahexaenoic Acid)☆
50 mg
†
EPA (Eicosapentaenoic Acid)☆
42 mg
†
The product is found useful for the following medical conditions
Common Cold details
SCIENTIFIC SCORE
Possibly Effective
Based on 8 Researches
7.9
USERS' SCORE
Good
Based on 3 Reviews
8.5
8
We explored the connection between vitamin D levels and the frequency of upper respiratory tract infections (URTI) in physically active individuals throughout different seasons. In our research, we observed over 1,600 military recruits during their basic training, noting that only 21% were vitamin D sufficient during winter. Alarmingly, those who had sufficient vitamin D levels were found to be 40% less likely to experience URTIs compared to their deficient counterparts, suggesting that maintaining adequate vitamin D may be crucial for better respiratory health during demanding training periods.
Building on these findings, we conducted a follow-up study with 250 recruits, where we implemented various vitamin D supplementation strategies. Participants received either a placebo, simulated sunlight exposure, or oral vitamin D3 supplementation. The results were promising: vitamin D helped alleviate the severity of URTI symptoms and significantly reduced the number of days experiencing a cold. Notably, both sunlight and dietary supplementation were equally effective in boosting vitamin D levels and improving outcomes.
Overall, achieving vitamin D sufficiency can markedly reduce the burden of URTIs, particularly in physically demanding scenarios such as military training.
Building on these findings, we conducted a follow-up study with 250 recruits, where we implemented various vitamin D supplementation strategies. Participants received either a placebo, simulated sunlight exposure, or oral vitamin D3 supplementation. The results were promising: vitamin D helped alleviate the severity of URTI symptoms and significantly reduced the number of days experiencing a cold. Notably, both sunlight and dietary supplementation were equally effective in boosting vitamin D levels and improving outcomes.
Overall, achieving vitamin D sufficiency can markedly reduce the burden of URTIs, particularly in physically demanding scenarios such as military training.
9
Effective immunity boost
Most Useful Review
1 people found this helpful
I love that these capsules don't contain lanolin. I've been taking one daily for 15 years, and they have reversed my osteopenia and improved my immune system. Most years, I hardly catch the common cold, perhaps only once. They're essential, and Carlson sources these from the wild with no chemical processing.
Updated: Mar 2026
Back Pain details
SCIENTIFIC SCORE
Possibly Effective
Based on 16 Researches
7.3
USERS' SCORE
Good
Based on 4 Reviews
8.4
9.5
We observed a fascinating case involving a male in his 40s who experienced persistent inflammatory back pain for three months. Despite having a negative test for HLA-B27, a marker often associated with axial spondyloarthritis, clinical assessments suggested possible underlying issues.
The clinical investigation led to an MRI, which confirmed bilateral symmetrical sacroiliitis. Interestingly, further tests showed he had very low vitamin D levels along with elevated parathyroid hormone—indicating a possible deficiency impacting his condition.
After starting treatment with vitamin D alongside nonsteroidal anti-inflammatory drugs (NSAIDs), he experienced notable relief from his symptoms. His condition improved significantly, and follow-up tests indicated that his vitamin D levels had normalized.
This case demonstrates the potential benefits of vitamin D in managing back pain, especially when classical markers are inconclusive. It highlights how a thorough diagnosis can reveal interconnected health issues and improve treatment outcomes.
The clinical investigation led to an MRI, which confirmed bilateral symmetrical sacroiliitis. Interestingly, further tests showed he had very low vitamin D levels along with elevated parathyroid hormone—indicating a possible deficiency impacting his condition.
After starting treatment with vitamin D alongside nonsteroidal anti-inflammatory drugs (NSAIDs), he experienced notable relief from his symptoms. His condition improved significantly, and follow-up tests indicated that his vitamin D levels had normalized.
This case demonstrates the potential benefits of vitamin D in managing back pain, especially when classical markers are inconclusive. It highlights how a thorough diagnosis can reveal interconnected health issues and improve treatment outcomes.
9
Increased energy levels
Most Useful Review
2 people found this helpful
I'm very pleased! My doctor in Finland recommended this D3 supplement last year for my multiple sclerosis. Since taking one capsule daily, I have more energy and no longer feel tired. Remarkably, my back pain has eased, and I've avoided flu this past year! Previously, migraines required medication weekly, but now those have disappeared. I'm truly grateful for this product.
Updated: Apr 2025
Bone Pain details
SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.7
USERS' SCORE
Good
Based on 3 Reviews
8.4
9
We explored the impact of vitamin D3 levels on bone pain that patients experience after undergoing unicompartmental knee arthroplasty (UKA). The study involved 240 participants who were divided into three groups based on their vitamin D status—some received treatment before surgery, some after, and others had normal levels to begin with.
By administering vitamin D3 in three doses, we aimed to see if correcting deficiencies could alleviate post-operative bone pain. Throughout the recovery period, we measured pain levels using the visual analog scale at various intervals after the surgery.
Our findings clearly demonstrated that patients who corrected their vitamin D3 deficiency before surgery reported significantly better pain control after the operation compared to those who were treated afterwards or those who started with adequate levels. This highlights the importance of testing and addressing vitamin D status prior to orthopedic procedures, showing that it is a modifiable risk factor affecting recovery.
By administering vitamin D3 in three doses, we aimed to see if correcting deficiencies could alleviate post-operative bone pain. Throughout the recovery period, we measured pain levels using the visual analog scale at various intervals after the surgery.
Our findings clearly demonstrated that patients who corrected their vitamin D3 deficiency before surgery reported significantly better pain control after the operation compared to those who were treated afterwards or those who started with adequate levels. This highlights the importance of testing and addressing vitamin D status prior to orthopedic procedures, showing that it is a modifiable risk factor affecting recovery.
9
Energy boost
Most Useful Review
2 people found this helpful
I'm very pleased! My doctor in Finland suggested this product a year ago for my multiple sclerosis. Taking one capsule daily has energised me; I no longer feel tired and my pain has subsided. Remarkably, I haven't had flu symptoms this year, and my migraines which previously required medication every week are gone. This product has really changed my life; I am immensely satisfied. Thank you!
Updated: Apr 2025
Cardiovascular Disease details
SCIENTIFIC SCORE
Possibly Effective
Based on 51 Researches
7.1
USERS' SCORE
Good
Based on 2 Reviews
8.3
9
Cod liver oil shows potential benefits
We explored the impact of cod liver oil on cardiovascular health, particularly its influence on heart disease processes. While marine fish consumption offers some benefits, high doses of fish oil can raise certain cholesterol levels and potentially increase risks.
In our study, we observed that when swine were given an atherogenic diet along with cod liver oil, important reductions in harmful monocyte adhesions and platelet clumping occurred. This suggests that fish oil may help improve blood flow and could be less risky than previously thought.
However, while promising, these effects from cod liver oil need more investigation to clarify their relevance in humans.
In our study, we observed that when swine were given an atherogenic diet along with cod liver oil, important reductions in harmful monocyte adhesions and platelet clumping occurred. This suggests that fish oil may help improve blood flow and could be less risky than previously thought.
However, while promising, these effects from cod liver oil need more investigation to clarify their relevance in humans.
7.5
Supports cardiovascular health
Most Useful Review
1 people found this helpful
It is very convenient to have a year’s supply of capsules in one jar, allowing me to focus on my health without worrying about reordering. The 4000 IU dosage is ideal for maintaining my vitamin D levels, and the small capsules are easy to swallow. Importantly, the inclusion of Omega-3, and vitamins A and E, supports my immunity and cardiovascular disease health.
Updated: Mar 2026
Heart Disease details
SCIENTIFIC SCORE
Possibly Effective
Based on 50 Researches
7.3
USERS' SCORE
Good
Based on 2 Reviews
8.2
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
Quick recovery
Most Useful Review
I love this vitamin D3, which is in the correct adult dose combined with Omega-3s. My family and I took it, and whenever we got sick, we recovered quickly, thanks to this supplement. I ordered this nearly a year ago and have a few pieces left. I store it in the fridge! It's a great product from a reliable company, and I recommend it wholeheartedly!
Updated: Mar 2026
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