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Study, 2009

Does evening primrose oil help treat PMS?

No. Based on current evidence, evening primrose oil is likely ineffective for PMS. Most studies to date have had major methodologic flaws.

Moderate study design Review of published studies (not a specific study of people).

What they did

Reviewed published studies examining evening primrose oil's use for women's health conditions, including PMS and breast pain.

What they found

Evening primrose oil does not provide significant improvement for PMS or cyclical breast pain. Minor side effects include gastrointestinal upset and headaches. The review noted that optimal dosing standards and treatment approaches are not yet clear.

What it means for you

Current evidence does not support using evening primrose oil for PMS. The main limitation is that existing studies have significant design flaws, so better-designed research is needed. Avoid during pregnancy.

About the study

Original title
Evening primrose oil
Authors
Bayles B, Usatine R
Journal
American family physician
Year
2009
Study design
Study
What was tested
evening primrose oil

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