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Experts say that certain foods are linked to poor cognitive health
Amber Raikenin New YorkFriday 21 November 2025 22:42 GMTComments
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Having difficulty concentrating or thinking lately? It could be due to the food you’re eating.
Whether it’s a task at work or an evening out with friends, we all have those days where we struggle to focus. Ultimately, it feels like our brains are hiding behind clouds. which is what health experts call brain fog.
“Brain fog, or that feeling of mental haziness and fatigue, can result in difficulty remembering names or finding words, and it can be quite concerning, nutritionist Angela Emmerton told Body and Soul.
According to the Cleveland Clinic, this mental exhaustion or confusion could be due to lack of sleep, stress, or mental health conditions like anxiety and depression.
What we eat and drink daily to get the energy we need is an important factor too, with poor nutrition being a common cause of brain fog.
Health experts say ‘highly processed foods’ could contribute to poor cognitive health (Getty Images)With that in mind, health experts say you should limit your intake of certain foods, not only to avoid brain fog but also for the sake of your overall health.
“Highly processed foods, especially those high in added sugars, refined grains, trans fats, and omega-6–heavy oils, promote inflammation and insulin resistance in the brain,”. Dr. Joshua Helman, a physician who specializes in reversing and preventing cognitive decline, told Huffington Post.
“I also advise people to be cautious with foods high in sodium, nitrates or artificial additives,” he added. “These can contribute to vascular damage, which is a major driver of cognitive impairment.”
Helman noted that moderate exposure to pesticides, heavy metals, and plastics in food and water can impact brain function over time.
He also said that the connection between unhealthy processed foods and poor cognitive health has resulted in some researchers calling Alzheimer’s disease “type 3 diabetes.”
Fortunately, some foods have been found to improve cognitive function and can aid in getting rid of brain fog.
Nutritionist Nicolette Pace recommends foods with sources of lutein, an antioxidant that is part of the carotenoid family, according to the Cleveland Clinic. Pace explained to the New York Post that lutein-laden foods have “shown strong improvement for memory, clarity, and focus.”
“Foods rich in lutein are spinach, many dark leafy greens,” she said. “As well as orange/yellow carotenoids like carrots, tomatoes, cantaloupe, and sweet potatoes.”
Health experts also recommend physical exercise in combination with foods like those rich in lutein to combat brain fog and benefit overall well-being.
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