Knee pain can result from several factors, including injuries, joint disorders and problems affecting the tissues around the knee. The condition can make everyday activities such as walking and standing difficult.

According to a study published in the journal Radiology, consuming large amounts of ultra-processed foods may contribute to increased fat accumulation in the thigh muscles, which can affect the knee joints.

Ultra-processed foods are products that undergo multiple stages of processing and often contain high amounts of salt, sugar and other ingredients, while providing relatively little fibre and other beneficial nutrients.

These foods include bread, fast food, sweets, candies, cakes, savoury snacks, breakfast cereals, chicken and fish nuggets, instant noodles, sugary drinks and soda.

Ultra-processed foods have also been associated with several chronic health conditions, including cardiovascular disease and cancer.

For the study, researchers analysed data from 615 people who were experiencing knee problems. The participants were overweight and provided information about their dietary habits.

The analysis showed that around 41% of their calorie intake came from ultra-processed foods.

Researchers found a clear association between higher consumption of ultra-processed foods and greater amounts of fat stored around the thigh muscles.

They reported that the more ultra-processed foods people consumed, the greater the amount of fat found in their thigh muscles.

MRI scans showed that increased fat in the muscles was associated with deterioration of muscle tissue and a higher risk of knee problems.

According to the researchers, the findings suggest that eating healthier foods may support overall health and could also help protect against knee problems.

Healthy knees are important for everyday activities such as standing, walking, running and sitting. Maintaining a healthy body weight can also help reduce stress on the knee joints and lower the risk of related problems.