A recent study published in Nutrients suggests that regular nut consumption is linked to improved cognitive function and a 68% reduced risk of cognitive decline in older adults.
Nuts are a rich source of healthy fats, antioxidants, polyphenols, and fibre, which may contribute to brain health by enhancing gut microbiota diversity and vascular function. Researchers analyzed data from 883 adults aged 50 and older using cognitive tests and dietary questionnaires. The findings revealed that individuals consuming more than 11.7 g of nuts daily had a significantly lower risk of cognitive impairment (OR = 0.32, 95% CI: 0.13-0.77), supporting the role of diet in brain function.
Interestingly, the study found that no single type of nut provided a unique advantage—rather, the beneficial effects were observed with a variety of nuts. Participants with higher nut intake also received increased amounts of mono- and polyunsaturated fats, vitamins A, C, D, and E, and essential minerals, which help reduce inflammation and oxidative stress—two key contributors to cognitive aging.
Although the study establishes a strong association between nut consumption and brain health, its observational nature prevents a definitive causal conclusion. However, incorporating nuts into a balanced diet may serve as a practical and effective strategy for preserving cognitive function and reducing the risk of age-related mental decline.
