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Benefits of DIM (Diindolylmethane)

Evidence:Moderate
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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Evidence-Based Benefits

  • Estrogen metabolism — a 2004 study in Nutrition and Cancer found DIM at 108mg daily shifted urinary 2:16 hydroxyestrone ratios favorably in postmenopausal women
  • Cervical health — clinical trials showed DIM supplementation promoted regression of cervical intraepithelial neoplasia (CIN) in some participants (Del Priore et al., 2010)
  • Prostate support — DIM inhibited androgen receptor signaling and proliferation in prostate cell studies (Le et al., 2003)
  • Hormonal acne — anecdotal and preliminary evidence supports DIM for reducing hormonally driven breakouts through estrogen rebalancing

What the Research Says

DIM has moderate clinical evidence supporting its role in estrogen metabolism. A key 2004 study by Dalessandri et al. demonstrated that 108mg of absorption-enhanced DIM daily significantly increased the urinary 2:16-hydroxyestrone ratio in postmenopausal women. Additional research in cervical dysplasia (Del Priore et al., 2010) showed some benefit. While mechanistic data is strong, large-scale RCTs are still needed to confirm clinical endpoints.

Related Conditions

Hormonal Imbalance
Full DIM (Diindolylmethane) Guide

References

  1. Dalessandri KM, Firestone GL, Fitch MD, Bradlow HL, Bjeldanes LF (2004). Pilot study: effect of 3,3'-diindolylmethane supplements on urinary hormone metabolites in postmenopausal women with a history of early-stage breast cancer. Nutrition and Cancer. DOI PubMed
  2. Del Priore G, Gudipudi DK, Montemarano N, Restivo AM, Malanowska-Stega J, Arslan AA (2010). Oral diindolylmethane (DIM): pilot evaluation of a nonsurgical treatment for cervical dysplasia. Gynecologic Oncology. DOI PubMed