Effect of omega-3 fatty acids on intensity of primary dysmenorrhea.

Objective: To examine whether dietary supplementation with omega-3 fatty acids relieved symptoms of primary dysmenorrhea.

Methods: Women aged 18-22 years with primary dysmenorrhea were enrolled in a double-blind crossover study. Women assigned to group 1 (n=47) received 1 omega-3 capsule daily for 3 months, followed by placebo for 3 months.