DIM and PSA Reduction: Blocking Aromatization for Prostate Health: A Case Report.

Authors: Danielle Arnold, Oscar Coetzee, Allyson LaGrutta
Cited by: 0

Abstract

Background: This case study examines the effects of diindolylmethane (DIM) on lowering Prostate-specific antigen (PSA) levels and improving hormonal balance in a 78-year-old male patient. It further considers whether the timing of hormonal changes in relation to DIM use suggests a possible causal link. The patient presented with steadily rising PSA levels and declining testosterone, raising concerns about potential prostate pathology. Given his reluctance to undergo a prostate biopsy-due to concerns about its invasiveness and potential complications-a functional medicine approach was adopted to address the hormonal imbalances contributing to his condition. The intervention included discontinuing cholesterol-lowering supplements and introducing 100 mg per day of DIM-Evail™ for three months to modulate estrogen metabolism. Over the three months, the patient's PSA dropped from 4.6 to 2.4 ng/mL, while the total and free testosterone notably increased from 436 ng/dL to 615 ng/dL. This case highlights the potential of targeted nutraceutical interventions in modulating hormone metabolism and supporting prostate health, though, as a single case, the findings warrant further validation through larger clinical studies. Keywords: Diindolylmethane (DIM), Prostate-specific antigen reduction, aromatase inhibition therapy, estrogen metabolism modulation, testosterone restoration, prostate cancer risk biomarkers, nutraceutical intervention for elevated prostate-specific antigen.

Fields of Study & Subjects

Estrogen and related hormone effects Hormonal and reproductive studies Prostate Cancer Treatment and Research

Publication details

Journal / source
PubMed
Volume
32
Issue
1
Pages
56–59
Publication date
1 January 2026
Language
EN