Fish and Quinoa Diets Boost Brain-Related Fat (DHA) in the Liver of Alzheimer’s Mice
This study looked at how diets containing chub mackerel (a DHA-rich fish) and quinoa affected liver fat composition in a mouse model of Alzheimer’s disease. Since DHA, an omega-3 fat, tends to be lower in the brains of people with Alzheimer’s, researchers wanted to see if diet could help restore DHA levels through the liver, which plays a key role in processing fats.
Mice were split into four groups: a standard diet, a diet with added chub mackerel, a diet with added quinoa, and a diet combining both. While total liver fat stayed similar across groups, the quinoa-only diet led to higher levels of stored fat (triglycerides) in the liver compared to the fish-based diets.
The combination of chub mackerel and quinoa produced the biggest increase in liver omega-3 fats and DHA specifically. DHA increases were seen mainly in the free fatty acid and triglyceride portions of liver fat, and only in the groups that included fish.
What this means for you
This animal research suggests that pairing a DHA-rich fish source with quinoa may help increase omega-3 and DHA levels in the liver more effectively than either alone, offering a possible dietary angle for future research into brain-related fat metabolism. As an animal study, these findings are preliminary and haven’t been confirmed in humans.
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