Eating too many ultra-processed foods, such as sugary snacks, fast food, and packaged meals, may do more than add extra calories. New research shows that these foods can cause fat to build up inside thigh muscles, even in people who are not overweight or inactive. This intramuscular fat replaces healthy muscle tissue, weakening the muscles and reducing their ability to support joints properly.

Thigh muscles are especially important because they help protect the knees and cushion the cartilage that absorbs impact. When these muscles weaken, knees are more vulnerable to wear and tear, increasing the risk of knee osteoarthritis.

The study analyzed MRI scans of 666 people and found that those who consumed higher amounts of ultra-processed foods had more fat in their muscles, regardless of their exercise levels or total calorie intake. Researchers believe that sugar, unhealthy fats, and additives in these foods may trigger inflammation and insulin resistance, leading to fat accumulation.

The positive takeaway is that healthier dietary choices can help reduce fat buildup, strengthen muscles, and slow the progression of joint damage. Small changes in diet can have a lasting impact on muscle and joint health, protecting your body for years to come.

Source: Brain Talks