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Dr. Eric Berg DC
9:161/21/26

The One Omega-3 That Builds Your Brain (It's Not Fish Oil)

TLDR

Cod liver oil is a superior omega-3 source compared to standard fish oil for brain health and overall well-being, primarily due to its balanced DHA/EPA ratio, vitamin A and D content, and other unique immune-supportive compounds.

Takeways

Cod liver oil offers a unique DHA-rich omega-3 profile that mirrors brain composition, superior to processed fish oil.

Minimize pro-inflammatory omega-6 seed oils, which compete with essential omega-3s and impair cellular function.

Cod liver oil naturally provides vital vitamins A, D, and K2, supporting immunity, bone health, and energy production.

For over 200 years, cod liver oil has been utilized for various conditions due to its unique composition, including a high DHA content that mirrors the brain's omega-3 ratios, and essential vitamins A and D. Unlike processed fish oil, cod liver oil supports structural brain integrity, mitochondrial function, and the immune system more effectively. Additionally, it helps counteract the negative effects of excessive omega-6 seed oil consumption by providing crucial anti-inflammatory fats and co-factors for energy production.

Cod Liver Oil's Benefits

00:00:53 Cod liver oil closely matches the brain's omega-3 fatty acid ratios, being rich in DHA, which is vital for the structural integrity of the brain, eyes, immune system, and mitochondria. This contrasts with common fish oil supplements that are typically high in EPA and low in DHA, making cod liver oil a better choice for neurological and overall cellular health. Historically, it was used to treat infections and promote wound healing due to its unique immune-modulating properties not found in fish oil.

Impact of Seed Oils

00:02:43 Seed oils, which are high in pro-inflammatory omega-6 fatty acids, compete with beneficial omega-3s like those in cod liver oil and fish oil. A significant portion of the average American diet comes from seed oils, leading to these unhealthy fats being incorporated into cellular membranes, including the brain, mitochondria, retina, and immune system, where they can persist for extended periods and hinder proper function. When DHA is insufficient, the body may convert seed oils into less effective fatty acids like osbon acid, which cannot fully replicate DHA's critical benefits for cognitive function.

Energy Production and Mitochondria

00:05:21 Cardiolipin, a key component for energy production in the mitochondria, is dependent on DHA. A lack of DHA can lead to 'leaky batteries' where mitochondria cannot efficiently produce energy, resulting in fatigue and mitochondrial dysfunction. Cod liver oil also contains phospholipids and coenzyme Q10, additional building blocks that are essential for optimal mitochondrial function and increased energy, further distinguishing it from standard fish oil.

Gut Health and Vitamins

00:06:25 Cod liver oil supports gut immune health and prevents 'leaky gut' through components like vitamin A, which is crucial for healing internal body linings such as the stomach and intestines. Additionally, it provides a natural combination of vitamin D and vitamin K2; vitamin D is vital for the immune system and bone structural calcium, while K2 ensures calcium is directed to the bones and kept out of arteries, joints, and kidneys, offering a comprehensive nutritional package for various bodily functions.