The One Omega-3 That Builds Your Brain (It's Not Fish Oil)
Dr. Eric Berg DCPublished on January 21, 2026
Summary authored by editor@wellifi.com
TLDR Summary
Cod liver oil is a superior omega-3 source that supports brain health, immune function, and overall well-being. Unlike typical fish oil, it contains essential nutrients like vitamins A, D, and K2 that contribute to its health benefits.
Key Points
- Cod liver oil is rich in omega-3 fatty acids, particularly DHA, which is essential for brain health.
- Alkylglycerol found in cod liver oil boosts immune function and aids in infection recovery.
- High omega-6 intake from seed oils can lead to inflammation and health issues, while cod liver oil offers anti-inflammatory benefits.
- DHA is crucial for cardiolipin production, supporting mitochondrial energy production.
- Cod liver oil contains vitamins A, D, and K2, vital for gut health, immune function, and calcium regulation.
The Omega-3 That Rebuilds Your Brain: Cod Liver Oil
For centuries, health practitioners have utilized natural remedies to treat various ailments. Among these, cod liver oil stands out as a powerful omega-3 source that has historically been used for conditions ranging from tuberculosis to rickets. Unlike common fish oil, cod liver oil is rich in vital nutrients that support brain health, immune function, and overall well-being. In this article, we will explore the unique benefits of cod liver oil and why it deserves a place in your health regimen.
1. The Brain-Boosting Benefits of Cod Liver Oil
Cod liver oil contains two key omega-3 fatty acids: DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid). The ratio of these fatty acids in cod liver oil closely resembles that of our brain’s natural composition, making it an optimal choice for cognitive health. In contrast, many processed fish oils are disproportionately high in EPA, which may not provide the same brain benefits.
2. The Role of Alkal Glycerol
One unique component of cod liver oil is alkylglycerol, which is absent in standard fish oil. This substance is known for its immune-boosting properties, helping to regulate immune cell production and enhance the body’s ability to fight infections.
3. Omega-3 vs. Omega-6: The Balance
In today’s diet, the intake of omega-6 fatty acids from seed oils is alarmingly high, often constituting 20-25% of total caloric intake. This imbalance can lead to pro-inflammatory conditions. Cod liver oil, with its omega-3 content, can counteract these effects and support overall health.
4. Supporting Energy Production with Cardiolipin
Cardiolipin is a phospholipid essential for mitochondrial function, and it heavily relies on DHA for its effectiveness. A deficiency in DHA can lead to decreased energy production, resulting in fatigue and other health issues.
5. The Importance of Coenzyme Q10
Cod liver oil is also a source of phospholipids, which work in tandem with coenzyme Q10 to support heart health and cellular energy production. These nutrients are vital for maintaining mitochondrial health and overall energy levels.
6. Gut Health and the Immune System
Vitamin A, another component of cod liver oil, plays a crucial role in gut health by helping to maintain the integrity of the gut lining. This vitamin is essential for preventing conditions like leaky gut and supporting the immune system.
7. The Duo of Vitamins D and K2
Cod liver oil is not only rich in vitamin D, essential for bone health and immune function, but it also contains vitamin K2. This combination helps ensure that calcium is properly utilized in the body, preventing it from accumulating in undesirable areas such as joints and arteries.
Conclusion: The Nutritional Power of Cod Liver Oil
Incorporating cod liver oil into your diet can provide a multitude of health benefits, from enhancing brain function to supporting your immune system. With its unique nutrient profile that includes omega-3 fatty acids, vitamins A, D, and K2, cod liver oil is a holistic addition to your health routine. Consider trying canned cod liver as a tasty and nutrient-dense option, and complement it with cod liver oil supplements for optimal health benefits.
For those interested in refining their health habits, Dr. Eric Berg provides a free download of his daily routine. This can serve as a guide to implement positive changes to your lifestyle. Additionally, explore more about the benefits of DHA and EPA in an informative video linked above.