Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Calories
5
 
Total Fat
0.5 g
< 1%**
Vitamin A (from Retinyl Palmitate and Cod Liver Oil)
750 mcg 
83%
Vitamin D3 (from Cholecalciferol and Cod Liver Oil)
6.75 mcg (270 IU)
34%
Cod Liver Oil
650 mg

The product is found useful for the following medical conditions

Hypothyroidism details

SCIENTIFIC SCORE
Possibly Effective
Based on 21 Researches
7.1
USERS' SCORE
Good
Based on 2 Reviews
8.5
We conducted a thorough investigation into how vitamin A supplementation might impact thyroid function, particularly focusing on women who are premenopausal and have varying body weights. Our study was a robust, four-month randomized controlled trial involving 84 healthy women aged 17 to 50. Among them, 56 women were classified as obese, while 28 fell into the nonobese category.

Throughout the study, we administered 25,000 IU of vitamin A or a placebo to the obese participants, while nonobese participants received vitamin A as well. Before and after the supplementation period, we measured key thyroid markers, including thyroid-stimulating hormone (TSH), total thyroxine (T4), total triiodothyronine (T3), and proteins associated with vitamin A transport.

Our findings revealed that vitamin A supplementation significantly reduced TSH concentrations in both the obese and nonobese groups, suggesting it may help mitigate the risk of subclinical hypothyroidism. Interestingly, we also noticed an increase in serum T3 levels among those treated with vitamin A. However, T4 levels decreased across all groups, including those not receiving vitamin A.

Overall, it appears that vitamin A may serve as a beneficial intervention for thyroid function in women, particularly those at risk for hypothyroidism. This research highlights an accessible avenue to better support thyroid health through dietary supplementation.
9
Thyroid support
Most Useful Review
3 people found this helpful
Vitamin A in retinol palmitate form aids the absorption of beta-carotene, alongside vitamins D and E. Research shows that vitamin A deficiency in hypothyroidism links to autoimmune thyroiditis and low T3 levels. It protects the thyroid even with iodine deficiency. Since it’s hard to replenish vitamin A from plant sources, I take one capsule daily.

Rash details

SCIENTIFIC SCORE
Possibly Effective
Based on 3 Researches
7
USERS' SCORE
Good
Based on 2 Reviews
8.5
We explored how vitamin A affects rash severity in ferrets infected with canine distemper virus (CDV). Our study involved both vitamin A-replete and vitamin A-depleted ferrets, assessing the impact of high-dose vitamin A on CDV symptoms.

Interestingly, ferrets that received vitamin A did not develop typical disease symptoms and only showed a mild rash, highlighting the vitamin's protective effect. The findings suggest that supplementing with vitamin A can significantly mitigate rash and other illness manifestations, reinforcing its potential benefits against similar viral infections in humans.
9
Promotes skin healing
Most Useful Review
Purchased on Dr. Berg's recommendations to enhance my skin condition. I have been struggling with rashes and acne for an extended period, often accompanied by dryness. It is cod liver oil that nourishes the skin from within and encourages quicker healing. It works!

Autoimmune Disorder details

SCIENTIFIC SCORE
Possibly Effective
Based on 42 Researches
7.6
USERS' SCORE
Good
Based on 2 Reviews
8.4
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.
9
Supports thyroid health
Most Useful Review
3 people found this helpful
Vitamin A in the form of retinol palmitate is ideal for absorbing beta-carotene, along with vitamins D and E. Its role in thyroid health is critical, as deficiency is linked to autoimmune disorder (AIT). Vitamin A can lower TSH levels and protect the thyroid, even with iodine deficiency. In hypothyroidism, it's important to replenish vitamin A as it is hard to obtain from plant sources. I take one capsule daily; it has been helpful for my health.

Blurred Vision details

SCIENTIFIC SCORE
Moderately Effective
Based on 6 Researches
8.5
USERS' SCORE
Good
Based on 5 Reviews
8.4
We investigated a case of persistent blurred vision following cataract surgery, leading to the discovery of vitamin A deficiency in a 74-year-old man. Using advanced tests like full-field electroretinograms and optical coherence tomography, we noted significant retinal changes and low vitamin A levels.

After administering vitamin A supplements for three months, we saw remarkable improvement in his vision and retinal health. This highlights the importance of diagnosing vitamin A deficiency, especially in patients showing persistent vision problems post-surgery.
9
Rich in vitamins
Most Useful Review
Prominent Fish liver oil is a dietary supplement sourced from the liver of certain fish, especially cod. It is rich in vitamins A and D, along with omega-3 fatty acids. Some benefits include: **Heart Health**: Omega-3 fatty acids reduce inflammation and lower blood pressure. **Bone health**: Vitamin D enhances calcium absorption, aiding bone health. **Vision improvement**: Vitamin A is vital for eye health. **Immune enhancement**: Vitamins A and D bolster the immune system. It’s essential to follow your doctor’s guidance for usage and be aware of potential interactions with medications. Choose a quality fish liver oil free from contaminants for safety.

Bone Pain details

SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8.3
USERS' SCORE
Good
Based on 9 Reviews
8.4
We examined a case of a 4-year-old boy who experienced severe bone pain and related symptoms after taking high doses of vitamin A for three months. Despite typical liver-related complications usually associated with vitamin A toxicity, he presented with significant musculoskeletal issues and skin changes. Following the discontinuation of vitamin A, the boy showed a remarkable recovery within two months. This case highlights that excessive vitamin A intake can lead to serious bone pain and other health problems, though he did not develop liver disease as expected.
9
Pain and inflammation relief
Most Useful Review
7 people found this helpful
This product is fantastic! It's affordable and treats many issues, including SAD, depression, aches, and displaced spinal discs. It relieved my bone pain, helped me heal an injured ligament, and improved my energy levels while ensuring I don't suffer from winter blahs.

Arthritis details

SCIENTIFIC SCORE
Possibly Effective
Based on 25 Researches
7.8
USERS' SCORE
Good
Based on 6 Reviews
8.3
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.
8.5
Game-changer for health
Most Useful Review
I’ve been using NOW Foods Cod Liver Oil, 650 mg, for a while, and it’s transformed my overall health. It significantly reduces inflammation, improving my joint health and alleviating arthritis-related pain. I've also experienced a decrease in anxiety and depression. The softgels are small and easy to swallow, making them a convenient choice. The quality is evident, and I've noticed benefits to my skin and hair, alongside cardiovascular support from the Vitamins A and D3. I highly recommend this product for those seeking natural health improvements.

Cardiovascular Disease details

SCIENTIFIC SCORE
Questionable
Based on 25 Researches
6.8
USERS' SCORE
Good
Based on 12 Reviews
8.2
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.
9
Relieves headaches
Most Useful Review
Omega 3 is essential for cardiovascular and nervous systems. Following Irina’s recommendation, I experienced significant benefits. My headaches and joint crunch have disappeared. I'm excited to continue using it!

Cold details

SCIENTIFIC SCORE
Moderately Effective
Based on 4 Researches
8.3
USERS' SCORE
Good
Based on 7 Reviews
8.2
We explored how vitamin A affects our body’s response to cold, specifically looking at its role in transforming white fat into brown fat, a process known as browning. This transformation is significant, as it can help reduce obesity and improve metabolic health.

In our investigation, we conducted cold exposure studies involving both mice and humans. We observed that exposure to cold led to an increase in circulating vitamin A, also known as retinol, and its transporter protein, Rbp. However, in mice lacking this protein, we found that their ability to adapt to the cold and promote thermogenesis—essentially, generating heat through fat—was severely compromised.

Interestingly, we also noted that stimulating human fat cells with retinol heightened the expression of genes associated with thermogenesis and boosted mitochondrial activity, which is vital for burning fat. In humans, the rise in vitamin A during cold exposure hinted at improved fat utilization.

Overall, our findings revealed that not only are vitamin A levels responsive to cold, but effective transportation of this vitamin is crucial for cold-induced fat browning and the body's ability to generate heat.
9
Stopped catching colds
Most Useful Review
I drink these vitamins regularly, and they have raised my immunity. Since I started taking them, I have not had a cold.

Heart Attack details

SCIENTIFIC SCORE
Possibly Effective
Based on 21 Researches
7.1
USERS' SCORE
Good
Based on 14 Reviews
8.2
We investigated the effects of cod liver oil, rich in omega-3 fatty acids, on heart health following a heart attack in rats. After a feeding period, we discovered that cod liver oil significantly boosted the heart's ability to withstand fibrillation and reduced abnormal heart rhythms.

It improved heart functioning during rest, but we found no significant impact on heart pressure or contraction speed. While there are some promising signs, the overall influence of cod liver oil on heart attack recovery remains limited.
9
Good for the heart
Most Useful Review
3 people found this helpful
Great Cod Liver Oil 650mg is an excellent dose. It’s very good for heart health and overall well-being.

Heart Disease details

SCIENTIFIC SCORE
Questionable
Based on 35 Researches
6.9
USERS' SCORE
Good
Based on 24 Reviews
8.1
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.
9
Promotes heart health
Most Useful Review
3 people found this helpful
Great Cod Liver Oil 650mg is an excellent dosage. It's beneficial for heart disease and general health.

High Cholesterol details

SCIENTIFIC SCORE
Questionable
Based on 32 Researches
6.8
USERS' SCORE
Moderately Good
Based on 19 Reviews
7.9
We explored the effects of all-trans retinoic acid (atRA) on atherosclerosis in rabbits fed a high-fat diet. In an experiment where rabbits were divided into groups, some received atRA while others received atorvastatin or both.

We found that atRA effectively reduced plaque size, comparable to atorvastatin, and their combination was even more effective. Additionally, atRA improved the serum lipid profile, suggesting it could be a valuable tool in managing cholesterol levels.
10
Healthy skin
Most Useful Review
2 people found this helpful
This product is excellent and has greatly benefited me. My skin, hair, and nails are healthier, and my good cholesterol has increased. The quantity is large, meaning it lasts a long time, and the price is very affordable. I highly recommend it.

Liver Disease details

SCIENTIFIC SCORE
Moderately Effective
Based on 18 Researches
8.1
USERS' SCORE
Moderately Good
Based on 4 Reviews
7.8
We aimed to explore how vitamin D3 supplementation affects liver disease, specifically in patients with cirrhosis. In a thorough double-blind, randomized controlled trial involving 60 participants, we offered patients either a weekly dose of 50,000 IU of vitamin D or a placebo for 12 weeks. Our goal was to assess various health indicators, including serum vitamin D levels, blood glucose measures, and liver function tests.

After the 12-week period, we observed significant changes among those taking vitamin D. The serum levels of 25-hydroxy-vitamin-D3 increased substantially, alongside notable improvements in fasting blood glucose and insulin resistance, measured by HOMA-IR. These results suggest that vitamin D3 could play a beneficial role in managing certain metabolic aspects of liver disease in cirrhosis patients.

Overall, our study highlights the potential of vitamin D3 supplementation as a simple yet effective strategy to improve specific health parameters in people living with cirrhosis, paving the way for further exploration in this important area of research.
7.5
Cholesterol improvement
Most Useful Review
3 people found this helpful
Cholesterol was raised. With my doctor’s guidance, we enhanced my nutrition, aerobic exercise, and dietary supplements. I took unrefined vegetable oils, lecithin, omega-3, sorbents, probiotics, antioxidants, and cod liver oil, prescribed as iHerb Now Foods Cod Liver Oil (650 mg). I consumed 2 capsules twice daily. The capsules are large, reasonably priced, and I liked the product. Cholesterol began to decline after a month.

Blood Clot details

SCIENTIFIC SCORE
Possibly Effective
Based on 20 Researches
7.1
USERS' SCORE
Moderately Good
Based on 3 Reviews
7.7
In a fascinating experiment involving young pigs, we observed how cod liver oil can prevent blood clotting in biodegradable vascular prostheses. The study included a total of 25 pigs, with 15 of them fed cod liver oil alongside their regular diets. They were compared against 10 control pigs that weren’t given any additional fatty acids.

Over the course of several months, we performed imaging tests and found that all the control implants were completely thrombosed by day 30. In stark contrast, the pigs who received the cod liver oil showed 100% patency—or openness—of their grafts even at later stages of the study.

Upon retrieval, 7 out of 9 grafts in the cod liver oil group remained patent, indicating that the fish oil's rich content of n-3 polyunsaturated fatty acids could significantly modify lipid metabolism. This modification appears to prevent the clumping of platelets, which is a crucial factor in blood clot formation.

Tissue analysis revealed that the patent grafts were well-integrated with tissue resembling natural blood vessel lining, complete with muscle cells that indicate healthy growth. This study clearly shows that a diet enriched with essential fatty acids can play a substantial role in preventing thrombosis in biodegradable vascular prostheses. The combination of our innovative materials and dietary strategies could pave the way for better heart surgery outcomes in the future.
7.5
Improved heart health
Most Useful Review
This omega improves blood vessel and heart health, effectively lowering cholesterol levels. The ingredients and quality are excellent.
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