Highly processed foods like chips and cold drink can cause memory loss: Study

According to a new study published in the journal Neurology, consuming highly processed foods like chips, namkeens, cold drinks and cookies have a scary effect on our minds. These processed foods can impact badly on memory. The after-effects of eating such processed foods can be that you can have memory loss as well and there is a higher risk of dementia. (Images courtesy: Canva)

"Our research not only found that ultra-processed foods are associated with an increased risk of dementia, but it also found replacing them with healthy options may decrease dementia risk," said researcher Huiping Li of Tianjin Medical University in China. Ultra-processed foods are high in added sugar, fat and salt, and low in protein and fiber. They include soft drinks, salty and sugary snacks, ice cream, sausage, deep-fried chicken, yogurt, canned baked beans and tomatoes, among others.

For the study, the team identified 72,083 people from a large database containing the health information of half a million people living in the UK. Participants were 55 and older and did not have dementia at the start of the study. They were followed for an average of 10 years.

By the end of the study, 518 people were diagnosed with dementia. During the study, participants filled out at least two questionnaires about what they ate and drank the previous day. Researchers determined how much ultra-processed food people ate by calculating the grams per day and comparing it to the grams per day of other foods to create a percentage of their daily diet. They then divided participants into four equal groups from the lowest percentage consumption of ultra-processed foods to the highest.

On average, ultra-processed foods made up 9 per cent of the daily diet of people in the lowest group, an average of 225 grams per day, compared to 28 per cent for people in the highest group, or an average of 814 grams per day. One serving of items like pizza or fish sticks was equivalent to 150 grams. The main food group contributing to high ultra-processed food intake was beverages, followed by sugary products and ultra-processed dairy.