We know nuts are good for the health.
They are packed with nutritional fiber, a plethora of healthy antioxidants, and numerous anti-inflammatory substances.
But maybe most importantly, a new study published in the American Journal of Clinical Nutrition has found this one nut to slow down the progression of dementia in at-risk seniors.
Researchers used 636 participants aged between 63 and 79 from California and Barcelona. At the beginning of the study they were declared cognitively healthy.
The researchers divided them into two groups – one received between 30 and 60 grams of walnuts per day – the other consumed none.
They administered neurocognitive tests before the study and then again after two years. The 108 participants in Barcelona were also given frequent brain MRI scans.
When they compared the groups, they found no difference between the cognitive functions.
But their findings revealed some other interesting things.
Smokers in the walnut-eating group displayed a slower cognitive decline than smokers in the non-eating walnut group.
In addition, people who started the study with lower than average neuropsychological test scores also benefited from walnut consumption.
This implies that walnuts make little difference to people who are cognitively normal or healthy, but it shows they can help those who are most at risk of developing dementia.