The Brain Benefits of Onions (Yes, Onions)

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Who doesn’t love the fragrance of onions cooking on the stove? It warms the heart and whets the appetite for a good, hearty meal. Now we’re learning that those onions not only smell good — they may also help protect our brains from the effects of aging.

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Onions, a staple of every kitchen and cuisine, are a nutrition powerhouse. They’re loaded with vitamin C, flavonoids, potassium and B vitamins. And it’s those B vitamins that turn them into a superfood for the brain.

A Harvard study showed that the folates contained in vitamin B seems to be a secret ingredient that sweeps away the debris that can clog the brain and lead to cognitive decline as people age. Folate breaks down a compound called homocysteine, which can build up in the blood and increase the risk of stroke and dementia.


You could pop a vitamin B tablet, but experts say it’s better to go straight to the source — and one of the best sources is the humble onion. So to help keep your brain healthy, get chopping and get your folates the tasty way.

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