A doctor who graduated from Harvard University has revealed which popular Christmas snack slashes the risk of dementia.
Dr Saurabh Sethi, a gastroenterologist, often shares his advice and expertise with his 1.4m followers on Instagram, @doctor.sethi.
The 42-year-old previously shared which protein source is the “worst” for the body – protein bars – as the quick fix snack is packed with sugar.
Now, the doctor, from California, US, has divulged which popular Christmas snack can help to slash the risk of dementia, reports Need To Know.
In a clip, which has racked up 77,000 views and over a thousand likes, he explains how and why.

“Science says that if you eat 30 grams of nuts everyday that are unsalted, you could reduce your risk of all-cause dementia,” he said.
He notes it can cut down the risk by 17%.
He explained: “[This] is compared to no daily nuts.
“Nuts are nutrient rich with multiple bioactive compounds including antioxidants, unsaturated fatty acids and fibre.
“These offer benefits for the brain and gut health.”
Dr Sethi says just a handful per day can do the trick.
But it depends on which type of nut.
For whole nuts, it’s around 20 almonds, 15 cashews, 14 walnut halves, 20 hazelnuts or 30 pistachios; which amount to around 200 calories.
Dr Sethi said: “What I personally like to do is eat a handful of mixed nuts during lunchtime.”
In another clip, racking up 1m views and over 6,000 likes, he explains the other benefits of eating nuts daily.
He added: “It’s a food I never skip as a doctor.
“Nuts decrease my risk of colon cancer.
“Improves my liver health because of Vitamin E and it improves gallbladder health, as well as decreasing risk of gallstones.
“And helps with acid reflux due to fibre and calcium.”
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