Lead researcher Maria Papamichael said the results, released on Monday, are in line with a growing body of evidence which points to a healthy diet being a potential therapy for childhood asthma.
"We already know that a diet high in fat, sugar and salt can influence the development and progression of asthma in children and now we have evidence that it's also possible to manage asthma symptoms through healthy eating," Papamichael said.
Of the 64 children with mild asthma who participated in the trial, half were told to follow a traditional mediterranean diet, high in plant based foods and oily fish, while the others followed their normal diets.
Those who followed the mediterranean diet saw significant reduction in their bronchial inflammation.
"Fatty fish is high in omega-3 fatty acids which have anti-inflammatory properties," Papamichael explained.
According to Professor Bircan Erbas, from La Trobe's School of Psychology and Public Health, "asthma is the most common respiratory disease in young people and one of the leading reasons for hospitalizations and trips to emergency for children."
"It is imperative that we identify new therapies that we can use alongside conventional asthma medications," Erbas said.