Researchers at Columbia University have published findings linking high consumption of ultra-processed foods to accelerated cognitive decline in adults over 50. The 10-year longitudinal study followed 8,000 participants and controlled for exercise, genetics, and socioeconomic factors.
Participants whose diets consisted of more than 30 percent ultra-processed foods showed measurably faster decline in memory and executive function tests compared to those eating primarily whole foods. The effect was dose-dependent, with higher consumption correlating to steeper decline.
The study adds to mounting evidence against ultra-processed diets and has prompted nutritionists to advocate for clearer food labeling and public education campaigns about the long-term neurological risks of processed food consumption.
