Resin extracts from the Boswellia serrata tree have been found to have anti-inflammatory effects. Animal and laboratory studies suggest possible efficacy for inflammatory conditions such as inflammatory bowel disease, rheumatoid arthritis, and osteoarthritis, although high-quality human data are lacking. Initial human evidence suggests the efficacy of boswellia as a chronic therapy for asthma (but not for the relief of acute asthma exacerbations). Further studies are warranted in this area.