When older male rats eat more DHA—a healthy fat found in fish—their brains produce less of a protein that normally trims brain connections too much as they age, which might help them keep their memory and thinking skills longer.

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Evidence from Studies

Supporting (1)

14

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14

Dietary DHA prevents cognitive impairment and inflammatory gene expression in aged male rats fed a diet enriched with refined carbohydrates.

Randomized Controlled Trial

Animal

2021 Nov

Scientists gave old male rats a healthy fish oil supplement (DHA) and found it lowered a harmful brain protein linked to memory loss, which means DHA might help keep their brains working better as they age.

Contradicting (0)

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No contradicting evidence found

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Source Study

Dietary DHA prevents cognitive impairment and inflammatory gene expression in aged male rats fed a diet enriched with refined carbohydrates.

Score: 14

DOI: 10.1016/j.bbi.2021.08.214

Similar Assertions

When older adults with memory problems eat more omega-3 fats from fish or supplements, their bodies show less of a type of cell damage linked to aging and brain decline.

38

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Giving old male rats a little bit of fish oil (DHA) in their sugary diet helps them remember better and keeps their brain from getting too inflamed from eating too many refined carbs.

14

0

73%