National Center for Complementary and Integrative Health (NCCIH)
NIH…Turning Discovery Into Health

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Health Topics A-Z

Selected Research Results by Date

Research spotlights of selected studies are shown below. For a full list of published NCCIH Research to-date, see PubMed.

Spotlights for 2002

Researchers found that an extract of the herb St. John’s wort (Hypericum perforatum) was no more effective for treating major depression of moderate severity than placebo (April 2002)