A study presented at the Radiological Society of North America's annual meeting found a link between ultra-processed foods and higher fat storage in thigh muscles, which may increase the risk of knee osteoarthritis. The research, conducted on 666 adults, showed that those who consumed more ultra-processed foods had significantly higher levels of intramuscular fat in their thighs, even after accounting for factors like BMI, calorie intake, and physical activity levels.

This hidden fat in muscles can lead to reduced muscle strength and mobility, and is associated with the onset and progression of osteoarthritis. To protect muscle health, the study recommends focusing on whole, minimally processed foods such as fruits, vegetables, whole grains, nuts, seeds, and lean proteins, while reducing the intake of ultra-processed foods. Overall, this study adds to existing evidence of the health risks associated with these convenience foods and emphasizes the importance of a healthy diet for musculoskeletal health.