A component found in all fungi may provide a shield that prevents flu-related lung damage, according to a new Canadian study.

The preclinical trial uncovered how beta-glucan—which is found in all mushrooms, and also yeast, oats, and barley—can ‘reprogram’ immune cells to prevent lung inflammation.

A team of scientists at the Research Institute of the McGill University Health Centre, demonstrated that administering the compound to mice before their exposure to influenza, reduced lung damage, improve lung function and lowered the risk of illness and death.