4. Fish May Increase Grey Matter in the Brain and Protect it From Age-Related Deterioration

One of the consequences of ageing is that brain function often deteriorates (referred to as age-related cognitive decline).

This is normal in many cases, but then there are also serious neurodegenerative diseases like Alzheimer’s disease.

Interestingly, many observational studies have shown that people who eat more fish have slower rates of cognitive decline (10).

One mechanism could be related to grey matter in the brain. Grey matter is the major functional tissue in your brain, containing the neurons that process information, store memories and make you human.

Studies have shown that people who eat fish every week have more grey matter in the centers of the brain that regulate emotion and memory .

Bottom Line: Fish consumption is linked to reduced decline in brain function in old age. People who eat fish regularly also have more grey matter in the brain centers that control memory and emotion.

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