Research shows that ultra-processed foods (UPFs) can significantly reduce attention span, even for those who generally maintain a healthy diet. A study led by Monash University and others examined over 2,100 adults and found that higher UPF consumption is linked to lower cognitive performance.
For every 10% increase in UPFs consumed, researchers noted a decline in visual attention and processing speed. That’s about the amount in a regular pack of chips. Dr. Barbara Cardoso, who led the study, emphasized that these effects were observed even in people who followed a healthy Mediterranean diet. This suggests that it’s not just what we eat, but how food is processed that matters for our brain health.
The majority of participants consumed around 41% of their daily energy from UPFs, which mirrors Australia’s national average. UPFs include items like sugary drinks, snacks, and ready-made meals. These foods often contain additives that can harm gut health, leading to inflammation and other issues that affect cognition.
Dr. W. Taylor Kimberly from Massachusetts General Hospital notes that a diet rich in UPFs is connected to a higher risk of stroke and cognitive decline. This is concerning because the negative effects were visible in participants who had not yet been diagnosed with dementia. It indicates that cognitive decline can start earlier than we think.
A related study published in Neurology followed nearly 93,000 adults for about 11 years. It found that a high-quality plant-based diet was associated with a 12% lower risk of dementia, while poor-quality plant diets increased risk by 25%. Lead researcher Song-Yi Park pointed out that even older adults could benefit from adopting healthier dietary habits.
Getting the right nutrients matters. Whole foods like fruits, vegetables, nuts, and whole grains contribute to brain health. Conversely, diets high in refined grains and sugars can be detrimental.
In summary, both studies underline the importance of being mindful of dietary choices. It’s clear that what we eat and how it’s processed can shape our brain’s health and functioning over time. Making informed shifts towards whole, unprocessed foods may help in reducing the risk of cognitive decline as we age.
Source link
Health,Mental Health
