Fish Oil: the story explained

Fish oil supplements have long been linked with a variety of brain benefits, but new research suggests that one of the omega-3 fatty acids these supplements contain could interfere with the brain's repair processes. Fish Oil has emerged this Friday as one of the stories drawing attention in Australia.

Key facts

• Fish oil supplements have long been linked with a variety of brain benefits, but new research suggests that one of the omega-3 fatty acids these supplements contain could interfere with the brain's repair processes.
• For many years, we have heard about the potential health benefits of fish oil due in part to their high concentration of omega-3 fatty acids.
• A component of fish oil, EPA, may hinder brain repair following repeated blows and exacerbate the damage over time.
• Researchers have found that a common fish oil component, eicosapentaenoic acid (EPA), impairs the brain’s ability to repair itself after repeated mild head injuries.
• Some fish oil supplements may disrupt brain healing in people who have experienced repeated mild traumatic brain injuries, a new study suggets.

What we know

Going deeper, For many years, we have heard about the potential health benefits of fish oil due in part to their high concentration of omega-3 fatty acids.

On the substance, a component of fish oil, EPA, may hinder brain repair following repeated blows and exacerbate the damage over time.

Beyond the headlines, Researchers have found that a common fish oil component, eicosapentaenoic acid (EPA), impairs the brain’s ability to repair itself after repeated mild head injuries.

More precisely, some fish oil supplements may disrupt brain healing in people who have experienced repeated mild traumatic brain injuries, a new study suggets.

It is worth noting that Fish oil contains omega-3 fatty acids, fats the body uses in cell membranes and signaling, but its two main players behave differently.

By the numbers

At this stage, For many years, we’ve heard about the potential health benefits of fish oil due in part to their high concentration of omega-3 fatty acids.

On a related note, Instead, the build-up of a specific omega-3 fatty acid in fish oil could potentially disrupt brain healing and assist with the accumulation of the protein tau in the brain, which is considered to be a hallmark of Alzheimer’s disease, via both human cell and mouse trials.

Going deeper, At the study’s conclusion, researchers found that one specific omega-3 fatty acid in fish oil, eicosapentaenoic acid (EPA), was associated with a reduced repair capacity in the brain, potentially interfering with healing after a brain injury.

On the substance, Trinh, who was not involved in the study, commented that its findings do not mean that fish oil is broadly harmful, but they do challenge the assumption that all omega-3 supplements are automatically brain-protective.

What they're saying

“Fish oil supplements are everywhere, and people take them for a range of reasons, often without a clear understanding of their long-term effects,” Albayram said.

“I am not saying fish oil is good or bad in some universal way,” Albayram said.

“Fish oil is widely used and generally considered beneficial, yet there are also observations in other areas of medicine suggesting that its effects may vary depending on the biological context, particularly during periods of tissue repair,” Albayram explained.

The wider context

“In that sense, the model allowed us to study how dietary factors such as fish oil interact with the brain’s recovery mechanisms,” he continued. “The study evolved step by step, with the findings guiding the next questions.”

“This study does not prove that fish oil causes brain damage in the general population,” he continued. “But if someone has a history of repeated concussions or head trauma, they should talk with their doctor about why they are taking fish oil, what dose they are taking, and whether their supplement is EPA-heavy.”

On the substance, the researchers speculate that fish oil supplements containing EPA may increase the risk of CTE if, by impairing cellular recovery, it exacerbates the effects of mild concussions that can easily go unchecked.

Beyond the headlines, this idea of fish oil being a one-size-fits-all benefit doesn't work once you start investigating interactions," says neuroscientist Onur Eskiocak, from Cold Spring Harbor Laboratory.

More precisely, Months later, fish-oil-fed injured mice performed worse on movement scores and spatial learning than the other groups.

The bottom line

• A component of fish oil, EPA, may hinder brain repair following repeated blows and exacerbate the damage over time.
• Some fish oil supplements may disrupt brain healing in people who have experienced repeated mild traumatic brain injuries, a new study suggets.
• The researchers speculate that fish oil supplements containing EPA may increase the risk of CTE if, by impairing cellular recovery, it exacerbates the effects of mild concussions that can easily go unchecked.
• Searches spiking right now: Popular Supplement May Have an Unexpected Downside, Study Finds, Fish oil supplements: Could they sometimes harm the brain?, Fish oil may be hurting your brain, new study finds, Scientists Uncover Potential Brain Risks of Popular Fish Oil Supplements.