Fat more damaging than weight: study

Unhealthy dietary fats could be more important than mechanical factors in the link between obesity and osteoarthritis (OA), according to the results of a US study conducted on mice with injured knees.

The mice, all of which had osteoarthritis as a result of their injury, were fed one of three high-fat diets: one rich in saturated fat, one rich in omega 6 fatty acids, and one rich in omega 6 fatty acids but supplemented