Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 16 Researches
7.3
USERS' SCORE
Good
Based on 7 Reviews
8.7
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Calories
15
 
Total Fat
1.5 g
2%**
Cholesterol
5 mg
2%
Total Omega 3 Polyunsaturates† providing: EPA (eicosapentaenoic acid) DHA (docosahexaenoic acid)
950 mg 504 mg378 mg
*** *** ***

Top Medical Research Studies

8
Omega-3 diet slows cancer progression
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.
Read More
We explored the potential of omega-3 fatty acids in managing pancreatic cancer using a specially designed mouse model that closely mimics human disease. Our study found that a diet enriched with omega-3s significantly reduced tumor size, lung and liver metastasis, and even suggested improved survival rates when compared to controls.

Additionally, these fatty acids altered tumor composition and induced cancer cell death without hindering cell growth. Importantly, our research points to omega-3s as promising dietary interventions that could help tackle this aggressive cancer.
Read More
8
Fish oil's preventive potential on cancer
We investigated how fish oil could help prevent skin cancer in mice exposed to specific carcinogens. The study included 70 Swiss albino mice divided into different groups, receiving fish oil either orally or topically, with some serving as controls.

While high doses of fish oil showed promising results, such as reduced cancer signs and decreased markers of oxidative stress, lower doses, notably 50 mg/kg/day, did not provide any benefits.

Overall, we found that fish oil has potential as a preventive treatment for skin cancer, especially at the right dosage.
Read More

Most Useful Reviews

8.8
Cancer cell control
Omega-3 fatty acids significantly impact health by ensuring a correct ratio with omega-6. The typical diet skews far towards omega-6, causing issues like blood clots, hypertension, and increased cancer cell proliferation. Countries with better ratios see improved health outcomes, highlighting the importance of omega-3 in preventing cancer.
Read More
9.5
Cancer prevention
I began taking omega-3 after reading David Servan-Schreiber's "Antirak," which recommends it for cancer prevention due to its strong anti-inflammatory properties. I suggest reading this book for insights on omega-3's benefits.
Read More
8.8
Blood clot reduction
I recommend Solgar omega-3 for its high dosage and glass packaging, which reduces exposure to toxic metals. I take two capsules daily, which promotes blood thinning, strengthens blood vessels, and reduces cancer risks.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 16 Researches
7.3
  • All Researches
We explored the potential of omega-3 fatty acids in managing pancreatic cancer using a specially designed mouse model that closely mimics human disease. Our study found that a diet enriched with omega-3s significantly reduced tumor size, lung and liver metastasis, and even suggested improved survival rates when compared to controls.

Additionally, these fatty acids altered tumor composition and induced cancer cell death without hindering cell growth. Importantly, our research points to omega-3s as promising dietary interventions that could help tackle this aggressive cancer.
Read More
9
Perilla seed oil reduces CRC tumors
We investigated the role of alpha-linolenic acid (ALA), a plant-based omega-3 found in perilla seed oil, in preventing colitis-associated colorectal cancer (CRC) using a mouse model.

Mice were given different diets, while only the control group received soybean oil.

The results showed that those on a 5% perilla seed oil diet had fewer tumors and lower markers of inflammation compared to those on fish oil or soybean oil.

Overall, perilla seed oil appeared to help slow tumor progression and restore gut health.
Read More
8
Fatty acids influence esophageal cancer risk
We assessed how different types of fatty acids in red blood cells relate to the risk of esophageal cancer. Analyzing samples from 158 cancer patients and 224 controls, we found that higher levels of omega-3 fats, like DHA and EPA, were linked to a lower risk of developing this aggressive cancer. Conversely, high concentrations of certain saturated fats were associated with increased risk. Our findings suggest that the balance of fatty acids in the diet may have important implications for esophageal cancer susceptibility.
Read More
We examined the impact of omega-3 fish oil on chemotherapy-induced peripheral neuropathy (CIPN) in mice. Our findings indicate that this fish oil supplementation effectively prevented hypersensitivity caused by common chemotherapy drugs.

Over 30 days, it reduced neuroinflammation, which seems to be a key factor in mitigating pain and discomfort linked to treatments like paclitaxel and oxaliplatin.

By normalizing certain biochemical parameters, omega-3 fish oil holds potential to enhance the quality of life for cancer survivors facing CIPN.
Read More
8
Fish oil's preventive potential on cancer
We investigated how fish oil could help prevent skin cancer in mice exposed to specific carcinogens. The study included 70 Swiss albino mice divided into different groups, receiving fish oil either orally or topically, with some serving as controls.

While high doses of fish oil showed promising results, such as reduced cancer signs and decreased markers of oxidative stress, lower doses, notably 50 mg/kg/day, did not provide any benefits.

Overall, we found that fish oil has potential as a preventive treatment for skin cancer, especially at the right dosage.
Read More

User Reviews

USERS' SCORE
Good
Based on 7 Reviews
8.7
  • All Reviews
  • Positive Reviews
  • Negative Reviews
8.8
Cancer cell control
Omega-3 fatty acids significantly impact health by ensuring a correct ratio with omega-6. The typical diet skews far towards omega-6, causing issues like blood clots, hypertension, and increased cancer cell proliferation. Countries with better ratios see improved health outcomes, highlighting the importance of omega-3 in preventing cancer.
Read More
9.5
Cancer prevention
I began taking omega-3 after reading David Servan-Schreiber's "Antirak," which recommends it for cancer prevention due to its strong anti-inflammatory properties. I suggest reading this book for insights on omega-3's benefits.
Read More
8.8
Blood clot reduction
I recommend Solgar omega-3 for its high dosage and glass packaging, which reduces exposure to toxic metals. I take two capsules daily, which promotes blood thinning, strengthens blood vessels, and reduces cancer risks.
Read More
8.8
Antioxidant properties
My endocrinologist recommended this remedy as a powerful antioxidant that combats a variety of ailments, including high blood pressure and depression. Omega-3 is noted for its extensive benefits, including the prevention of cancer. In the USSR, fish oil was mandatory for children, which may explain the decline in health experienced today.
Read More
8.8
Breast cancer protection
Omega-3 PUFAs during pregnancy reduce the risk of premature birth, alleviate menopause symptoms, and protect against breast cancer. They also offer relief from menstrual pain.
Read More

Frequently Asked Questions

Cancer is a complex group of diseases characterized by uncontrolled growth and spread of abnormal cells in the body. These cells can form tumors, invade nearby tissues, and metastasize to other parts of the body via the bloodstream or lymphatic system. While cancer can affect nearly any part of the body, it is classified into various types, including carcinomas, sarcomas, leukemia, and lymphomas, each originating from different types of cells. Risk factors for developing cancer can include genetic predisposition, lifestyle choices such as smoking and diet, environmental exposures, and certain infections.

Diagnosis typically involves medical imaging, biopsies, and a thorough review of personal and family health histories. Treatment options vary widely depending on the type and stage of cancer and may include surgery, chemotherapy, radiation therapy, immunotherapy, and targeted therapies. Early detection is crucial and can significantly improve treatment outcomes, leading to better survival rates. As awareness and research continue to advance, new methods for prevention, detection, and treatment of cancer are consistently being developed, offering hope to those affected by this challenging disease.

Omega-3 fish oil is a nutritional supplement derived from the fatty tissues of fish, particularly fatty fish like salmon, mackerel, and sardines. It is rich in omega-3 fatty acids, which are essential fats that the body cannot produce on its own. The most significant types of omega-3s found in fish oil are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), both of which are known for their numerous health benefits. These include reducing inflammation, supporting heart health, and promoting brain function.

Incorporating omega-3 fish oil into your diet can be beneficial if you don’t consume enough fish regularly. Many health experts recommend oily fish as a part of a balanced diet due to their high omega-3 content. For those who find it difficult to include fish in their meals, fish oil supplements can offer a convenient alternative, providing the same essential fatty acids in concentrated form. However, it’s essential to choose high-quality supplements that are third-party tested for purity and potency to avoid contaminants such as heavy metals or other toxins that can impact health.

While omega-3 fish oil has been studied for various health benefits, including its potential role in heart health and inflammation reduction, the evidence regarding its effectiveness in cancer treatment is still inconclusive. Some research suggests that omega-3 fatty acids may have a role in improving the quality of life for cancer patients and may even affect certain types of cancer, but it is important to note that these findings are not definitive. The anti-inflammatory properties of omega-3s could help in alleviating some treatment side effects, but they should not be seen as a cure or a substitute for conventional cancer therapies.

Furthermore, the effects of omega-3 fish oil may vary depending on the type of cancer and individual patient factors. Patients considering omega-3 supplements as part of their treatment strategy should consult with their healthcare provider to discuss potential benefits and risks. A balanced approach, including a healthy diet rich in omega-3 sources like fatty fish, may contribute to overall wellness, but should always be aligned with professional medical advice.

The research surrounding omega-3 fatty acids, particularly those derived from fish oil, suggests a promising potential for cancer-related benefits. For instance, studies have shown that higher levels of omega-3s are linked to a reduced risk of various cancers, including esophageal and colorectal cancers, which may be due to their anti-inflammatory properties and effects on tumor dynamics [1] [6]. Additionally, omega-3 fatty acids have demonstrated potential in improving the overall well-being of cancer patients undergoing treatment, particularly by alleviating chemotherapy side effects and supporting nutritional status [2] [11].

However, while the benefits appear promising, the data emphasize the necessity for larger and more comprehensive trials to firmly establish the role of omega-3 fatty acids in cancer prevention and treatment. Some research has indicated varying results across different cancer types, indicating that the role of these fatty acids may not be universally beneficial [1] [15]. Therefore, while omega-3 supplementation may support cancer care, it should be approached with caution and further studies are needed to understand its full impact across all cancer types.

Users have reported a range of improvements in various symptoms after incorporating omega-3 fatty acids into their daily regimen. Many individuals highlight significant benefits related to heart health, such as improved blood circulation and reduced risk of hypertension and blood clots. For instance, one user noted that taking omega-3 helped promote blood thinning and strengthen blood vessels, leading to a reduction in cancer risks (Read Review).

Further testimonials showcase omega-3’s anti-inflammatory properties, which users attribute to alleviating menopausal symptoms and menstrual pain, as well as enhancing emotional wellbeing and overall health. One reviewer remarked on the impact omega-3 had on their emotional state and physical appearance (Read Review). While these experiences underline the potential benefits of omega-3, it's important to remember that results can vary widely from person to person.

Based on user reviews, many individuals report positive experiences when combining omega-3 fatty acids with other supplements or elements of their treatment regimen for handling cancer. Some users highlight that incorporating omega-3 is recommended specifically for its strong anti-inflammatory properties, which is beneficial not only for general health but also for cancer prevention. One reviewer noted that omega-3 fatty acids promote blood thinning and strengthen blood vessels, ultimately contributing to a reduction in cancer risks (Read Review). Another user pointed out that omega-3's extensive benefits include combating a variety of ailments, including cancer, which emphasizes its importance in a holistic approach to health (Read Review).

Moreover, several reviews indicate the importance of achieving a proper omega-3 to omega-6 ratio, as a diet too high in omega-6 is associated with various health issues, including cancer cell proliferation (Read Review). Users have also reported improvements in emotional wellbeing and overall health, further supporting the notion that omega-3 can be a valuable addition alongside other supplements and treatments (Read Review). However, it is crucial to consult healthcare professionals before making adjustments to supplementation routines.

Users report various dosages and opinions regarding Omega 3 Fish Oil for treating or preventing cancer, primarily emphasizing its anti-inflammatory properties and health benefits. A common recommendation is to take about two capsules daily, as noted by a reviewer who praises Solgar omega-3 for its high dosage and efficacy in promoting blood thinning and reducing cancer risks (Read Review). Others highlight the significance of achieving a proper balance between omega-3 and omega-6 fatty acids in the diet to improve health outcomes related to cancer prevention (Read Review).

Moreover, several users mention the supplement’s reputation as a powerful antioxidant and its historical use, like in the USSR where fish oil was mandatory for children, potentially illustrating its long-standing association with enhanced health (Read Review). Books and personal experiences suggest incorporating Omega 3 into a daily regimen for cancer prevention, although specifics about optimal dosages from scientific studies are N/A in these user reviews.

8.8
Blood clot reduction
I recommend Solgar omega-3 for its high dosage and glass packaging, which reduces exposure to toxic metals. I take two capsules daily, which promotes blood thinning, strengthens blood vessels, and reduces cancer risks.
8.8
Health improvement
Omega-3 was advised by my therapist to maintain immunity. It's crucial for the body as it can't produce these essential fatty acids. Solgar’s Omega-3 reduces cancer risk, lowers bad cholesterol, and improves overall health. My emotional state and physical appearance have notably improved.
8.8
Antioxidant properties
My endocrinologist recommended this remedy as a powerful antioxidant that combats a variety of ailments, including high blood pressure and depression. Omega-3 is noted for its extensive benefits, including the prevention of cancer. In the USSR, fish oil was mandatory for children, which may explain the decline in health experienced today.
8.8
Cancer cell control
Omega-3 fatty acids significantly impact health by ensuring a correct ratio with omega-6. The typical diet skews far towards omega-6, causing issues like blood clots, hypertension, and increased cancer cell proliferation. Countries with better ratios see improved health outcomes, highlighting the importance of omega-3 in preventing cancer.
8
Fatty acids influence esophageal cancer risk
We assessed how different types of fatty acids in red blood cells relate to the risk of esophageal cancer. Analyzing samples from 158 cancer patients and 224 controls, we found that higher levels of omega-3 fats, like DHA and EPA, were linked to a lower risk of developing this aggressive cancer. Conversely, high concentrations of certain saturated fats were associated with increased risk. Our findings suggest that the balance of fatty acids in the diet may have important implications for esophageal cancer susceptibility.
7
Omega-3s may reduce cancer risk
We examined the connection between omega-3 fatty acids in the blood and the risk of colorectal cancer among UK Biobank participants. Our analysis showed that higher levels of omega-3s were linked to a decreased risk of developing colorectal cancer, especially in males and for proximal colon cancers.

Interestingly, the relationship was nonlinear, suggesting that benefits plateau at higher omega-3 concentrations. This study could influence nutritional guidelines if our findings are supported by further research in various populations.
We examined the impact of omega-3 fish oil on chemotherapy-induced peripheral neuropathy (CIPN) in mice. Our findings indicate that this fish oil supplementation effectively prevented hypersensitivity caused by common chemotherapy drugs.

Over 30 days, it reduced neuroinflammation, which seems to be a key factor in mitigating pain and discomfort linked to treatments like paclitaxel and oxaliplatin.

By normalizing certain biochemical parameters, omega-3 fish oil holds potential to enhance the quality of life for cancer survivors facing CIPN.
7
Omega-3 and Vitamin D improved nutrition
We explored the impact of omega-3 fatty acids and vitamin D on the nutrition of women recently diagnosed with breast cancer. In this open-label randomized controlled trial, 88 participants were divided into four groups to receive different combinations of omega-3 and vitamin D or act as controls.

After nine weeks, those taking omega-3, vitamin D, or both showed notable improvements in nutritional status, measured by various health assessments. This suggests that these supplements can play a significant role for women with breast cancer in enhancing their overall well-being during treatment.
4
Omega fatty acids and cancer risk
We explored the relationship between omega-3 and omega-6 fatty acids and cancer risk in a large UK Biobank study with over 253,000 participants. Our analysis revealed slight inverse associations between the levels of these fatty acids and overall cancer incidence.

However, while most site-specific cancers showed similar trends, prostate cancer was an exception, demonstrating a positive association with omega-3 levels. Overall, the findings suggest that while omega-3 and omega-6 may be linked to lower cancer risks, the benefits are not universal across all cancer types.

References

  1. Yin H, Wang Y, Chen Y, Shehzad Q, Xiao F. Association between red blood cell fatty acids composition and risk of esophageal cancer: a hospital-based case-control study. Lipids Health Dis. 2025;24:101. doi:10.1186/s12944-025-02531-8
  2. Melato J, Goldoni FC, Benvenutti L, Corrêa TP, Remor AP, et al. Omega-3-Enriched Fish oil reduces the chemotherapy-induced peripheral neuropathy in mice. Neuropharmacology. 2025;271:110384. doi:10.1016/j.neuropharm.2025.110384
  3. Cheniti H, Kadi A, Agred R, Kadi Y, Djeradi MK, et al. Fish Oil's Preventive Effect on Two-Stage Skin Carcinogenesis in Swiss Albino Mice: Involvement of NF-ҝB Pathways and Oxidative Stress in a Dose- and Route Dependent Manner. Mol Nutr Food Res. 2025;69:e202400630. doi:10.1002/mnfr.202400630
  4. van der Meij B, Parsons S, Mazurak V. The impact of n-3 polyunsaturated fatty acids in patients with cancer: emerging themes. Curr Opin Clin Nutr Metab Care. 2025;28:75. doi:10.1097/MCO.0000000000001102
  5. Garay MI, Mazo T, Ferrero V, Barotto NN, Lagares C, et al. Novel inhibitory effect of Omega-3 fatty acids regulating pancreatic cancer progression. Carcinogenesis. 2025;46. doi:10.1093/carcin/bgae081
  6. Aldoori J, Zulyniak MA, Toogood GJ, Hull MA. Plasma n-3 Polyunsaturated Fatty Acid Levels and Colorectal Cancer Risk in the UK Biobank: Evidence of Nonlinearity, as Well as Tumor Site- and Sex-Specificity. Cancer Epidemiol Biomarkers Prev. 2025;34:394. doi:10.1158/1055-9965.EPI-24-1154
  7. Pires LBC, Salaroli LB, Podesta OPG, Haraguchi FK, Lopes-Júnior LC. Omega-3 Supplementation and Nutritional Status in Patients with Pancreatic Neoplasms: A Systematic Review. Nutrients. 2024;16. doi:10.3390/nu16234036
  8. Sun G, Fuller H, Fenton H, Race AD, Downing A, et al. The Relationship Between Dietary and Supplemental omega-3 Highly Unsaturated Fatty Acid Intake, Blood and Tissue omega-3 Highly Unsaturated Fatty Acid Concentrations, and Colorectal Polyp Recurrence: A Secondary Analysis of the seAFOod Polyp Prevention Trial. J Nutr. 2025;155:549. doi:10.1016/j.tjnut.2024.12.004
  9. Aronson WJ, Grogan T, Liang P, Jardack P, Liddell AR, et al. High Omega-3, Low Omega-6 Diet With Fish Oil for Men With Prostate Cancer on Active Surveillance: The CAPFISH-3 Randomized Clinical Trial. J Clin Oncol. 2025;43:800. doi:10.1200/JCO.24.00608
  10. Korsirikoon C, Techaniyom P, Kettawan A, Rungruang T, Metheetrairut C, et al. Cold-pressed extraction of perilla seed oil enriched with alpha-linolenic acid mitigates tumour progression and restores gut microbial homeostasis in the AOM/DSS mice model of colitis-associated colorectal cancer. PLoS One. 2024;19:e0315172. doi:10.1371/journal.pone.0315172
  11. Almassri HF, Abdul Kadir A, Srour M, Foo LH. The Effects of Omega-3 Fatty Acids and Vitamin D Supplementation on the Nutritional Status of Women with Breast Cancer in Palestine: An Open-Label Randomized Controlled Trial. Nutrients. 2024;16. doi:10.3390/nu16223960
  12. Almassri HF, Abdul Kadir A, Srour M, Foo LH. The effects of Omega-3 fatty acids and vitamin D supplementation on the quality of life and blood inflammation markers in newly diagnosed breast cancer women: An open-labelled randomised controlled trial. Clin Nutr ESPEN. 2025;65:64. doi:10.1016/j.clnesp.2024.11.014
  13. Głowacka K, Ibanez S, Renoult O, Vermonden P, Giolito MV, et al. Acid-exposed and hypoxic cancer cells do not overlap but are interdependent for unsaturated fatty acid resources. Nat Commun. 2024;15:10107. doi:10.1038/s41467-024-54435-3
  14. Machuca J, Wirkus J, Ead AS, Vahmani P, Matsukuma KE, et al. Dietary ω-3 Fatty Acids Mitigate Intestinal Barrier Integrity Alterations in Mice Fed a High-Fat Diet: Implications for Pancreatic Carcinogenesis. J Nutr. 2025;155:197. doi:10.1016/j.tjnut.2024.10.054
  15. Zhang Y, Sun Y, Song S, Khankari NK, Brenna JT, et al. Associations of plasma omega-6 and omega-3 fatty acids with overall and 19 site-specific cancers: A population-based cohort study in UK Biobank. Int J Cancer. 2025;156:1154. doi:10.1002/ijc.35226
  16. Lam CS, Hua R, Loong HH, Chung VC, Cheung YT. Association between fish oil and glucosamine use and mortality in patients diagnosed with cancer: the role of the Life Essential 8 score and cancer prognosis. Nutr J. 2024;23:124. doi:10.1186/s12937-024-01032-1
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