The results of a network meta-analysis, which evaluated the use of various nutritional supplements for chronic obstructive pulmonary disease (COPD), were published in BMC Pulmonary Medicine. This analysis included 37 randomized and controlled trials, a total of nearly 2,000 participants with COPD, and 21 nutritional interventions. Network analysis allows for a rough comparison between interventions that have not necessarily been compared directly. COPD was defined in these studies as a Forced...
