There have been a number of clinical trials of the Buteyko method which demonstrate its positive benefits.
A respiratory consultant in Australia carried out one of the main Buteyko trials on patients with asthma. The results of this three-month trial found that the group of people using the Buteyko reduced their use of bronchodilator inhalers by 90 per cent.
A similar trial which followed people for six months found a similar reduction in broncholdilator inhaler use as well as a nearly 50 per cent cut in the use of steroid inhalers.