Ultra-processed foods linked to increased knee muscle fat

A new study published in the scientific journal Radiology suggests a potential link between the consumption of ultra-processed foods (UPF) and increased fat levels within the knee muscles.

Researchers studied 615 individuals, with an average age of approximately 60, who did not show signs of knee osteoarthritis at the time of imaging. The study found that participants' diets consisted of roughly 41% ultra-processed foods. The findings indicated that higher consumption of these foods correlated with greater amounts of fat found within the knee muscles, even when accounting for factors such as total calorie intake, fat consumption, physical activity, and demographic characteristics.

While increased fat within muscle fibers is a subject of interest regarding muscle quality and the potential risk of osteoarthritis, researchers emphasized that the study demonstrates a correlation rather than a direct cause-and-effect relationship. Further large-scale, long-term studies are required to determine if ultra-processed foods directly cause muscle fat accumulation or osteoarthritis.