Fast Food Damages the Brain

Potato chips, instant noodles, or a candy bar may seem like quick options to stave off hunger, but overconsumption of ultra-processed foods may have effects that extend beyond weight gain and heart health, reaching the brain as well. Recent research suggests that people who rely more heavily on these foods may be at greater risk of brain changes associated with stroke, dementia, and cognitive decline.

A report published by Canada’s CBC and relayed by ArabNet today stated that many everyday foods found by consumers in refrigerators and kitchen cupboards—from cookies and chocolate chips to instant noodles, potato chips, and ready-made meals—fall into dietary categories that many recognize as less than healthy.

For years, research has linked excessive consumption of these foods to various health problems, including weight gain, cardiovascular disease, and certain types of cancer.

However, a recent study conducted by researchers at McMaster University and published in JAMA Network Open highlighted another aspect of their potential impact: brain health.

The researchers concluded that individuals who consume larger amounts of ultra-processed foods may be more susceptible to brain changes that could serve as early indicators linked to stroke, dementia, and cognitive decline.

Russell de Souza, a study co-author and associate professor at the Mary Helen and Paul L. Foster School of Global Health and Social Medicine at McMaster University, noted that many people may not be aware of these potential harms. He suggested that the findings could encourage people to modify their dietary habits earlier, before facing more serious consequences later in life.

A professor of medicine and epidemiology at McMaster University emphasized that MRI scans revealed changes in these individuals resembling what is known as “silent strokes”—strokes that do not present with obvious symptoms but still cause damage to brain tissue.