Study links processed meat to cognitive decline

A large scientific review has found that eating processed meats daily may raise the risk of cognitive decline. Researchers compiled data from nearly 500,000 people in the UK, suggesting that consuming two slices of processed meat per day could increase dementia risk by 44%.

Processed meat increases Alzheimer's risk

The study found that eating 25 grams of processed meat daily—about the size of a thick slice of ham—raises the risk of Alzheimer's disease by 52%. This amount includes items like bacon, sausages, and nuggets, but excludes other ultra-processed foods eaten in the same meal.

Global research supports findings

The research, led by Owen Carmichael, involved studies from four continents and was described as showing "moderate" evidence by the Annual Review of Nutrition. Some of the studies also looked at the effects of sugary drinks, prepared meals, and industrial snacks on mental health.

Diet change may reduce dementia risk

A Brazilian study found that replacing 10% of calories from ultra-processed foods with unprocessed foods could lower the risk of dementia by 19%. This conclusion was based on tracking 10,000 adults over eight years.