Eating ultra-processed food may cause fat build up in surprising body part

A recent study has highlighted a potential connection between consuming ultra-processed foods and the buildup of fat in the thighs. This research, carried out by the University of California with 666 participants, suggests that diets high in ultra-processed foods (UPFs) may impact muscle quality, particularly in the thighs. The study also raised concerns that increased thigh muscle fat could increase the risk of developing osteoarthritis in the knee.

Zehra Akkaya, the study author, emphasised the significance of these findings, noting that this study is the first to investigate the relationship between the quality of one’s diet, especially the consumption of ultra-processed foods, and the accumulation of fat in thigh muscles as assessed by MRI. The results showed that regardless of factors such as dietary energy content, body mass index, sociodemographic factors, or physical activity levels, consuming ultra-processed foods was associated with increased fat within the thigh muscles.

As individuals age, it is common for them to accumulate more belly fat due to hormonal shifts and changes in how the body stores fat. Dr Zehra has expressed concerns about the potential dangers of a diet rich in ultra-processed foods, noting previous studies that have associated UPFs with faster ageing. These foods, often high in sugars, salt, and unhealthy fats, undergo intense processing that can deplete them of nutrients and fibre, potentially impacting various bodily functions such as glucose metabolism and gut health.

While there is increasing awareness of the potential negative effects of ultra-processed foods on health, experts advise moderation rather than panic. While a study in the British Medical Journal suggested an increased risk of developing serious health conditions with UPF consumption, nutrition and food science specialist Professor Gunter Kuhnle emphasised the complexity of categorising ultra-processed foods. He highlighted the importance of focusing on the composition of one’s diet, such as sugar, fat, and salt content, as opposed to solely considering the degree of processing.

In conclusion, the study emphasises the importance of understanding the potential impacts of diet choices, especially regarding consumption of ultra-processed foods. It highlights the need for individuals to be mindful of their food choices, aiming for a balance between convenience and nutritional value to support overall health and well-being.