9/24/2026
Vital Signs · nutrition

Ultra-processed foods linked to hidden muscle fat that may threaten your knees

Filed by Dr. Iris Vale
Ultra-processed foods linked to hidden muscle fat that may threaten your knees
Eating more ultra-processed foods was linked to greater fat buildup inside thigh muscles, according to MRI scans of 615 adults at risk for knee osteoarthritis. Surprisingly, the association remained even after researchers accounted for calorie intake, physical activity, and other factors. Fatty changes in these muscles may weaken support around the knee and potentially increase osteoarthritis risk.
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Dr. Iris Vale
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Ultra-processed foods linked to hidden muscle fat that may threaten your knees — Vital Signs