Consuming processed foods high in fat may lead to a worsening of asthma symptoms, according to research.

A new study conducted at the Children's Hospital of Philadelphia has found that diets containing certain saturated long chain fatty acids, such as trans fats and those commonly found in processed foods, fried foods, and some baked goods, can cause neutrophilic asthma independent from obesity.

This surprising discovery challenges the common belief that childhood obesity is a primary cause of neutrophilic asthma, a severe form of the condition triggered by the immune system overreacting and filling the lungs with inflammatory white blood cells called neutrophils.

The study, led by Dr. David Hill, observed neutrophilic asthma in non-obese children, leading the researchers to suspect another mechanism. One such mechanism could be the chemical stearic acid, often found in animal fat and processed foods, which has been identified as a potential culprit for inflammation of the airways.

However, not all fats are harmful. Oleic acid, a fatty acid often found in vegetable oils, particularly olive oil, has the opposite effect and can suppress inflammation.

The study's findings suggest that dietary choices, particularly those high in saturated fats, may play a role in the development of neutrophilic asthma. Professor Lisa Young, a co-author of the study, suggests that targeted dietary modifications may help prevent neutrophilic asthma.

Further research is needed to confirm these findings and to explore the potential benefits of diets rich in oleic acid in the treatment and prevention of asthma. Doctors are advised to advise patients to make dietary changes to help manage neutrophilic asthma.

Approximately 15% of patients with severe asthma have neutrophilic asthma, and more than five million Britons have asthma, with some 200,000 of those having severe asthma and being likely to be treated in hospital four times a year.

The study's findings are encouraging because they suggest a potential role for dietary choices in the development and management of neutrophilic asthma. However, it is important to note that the article does not mention any specific treatments for neutrophilic asthma other than dietary modifications.

Further research is needed to confirm the findings and to explore the potential benefits of diets rich in certain fatty acids in the treatment and prevention of asthma. The study did not find a direct link between childhood obesity and neutrophilic asthma, but the relationship between the two remains an area of ongoing research.

Consuming processed foods high in fat may lead to a worsening of asthma symptoms, according to research.