Study · Meta-analysis
Data is freeNeither soy nor isoflavone intake affects male reproductive hormones: an expanded and updated meta-analysis
A meta-analysis of 41 clinical studies (Reproductive Toxicology, 2021): soy foods, soy protein and isoflavones did not change testosterone, estradiol, estrone or SHBG in men, regardless of dose or duration. Europe PMC lists a soy-industry body as the funder.
Reproductive Toxicology · 2021Open accessPMID 33383165
Key facts
- Who was studied
- Adult men consuming soy foods, soy protein or isoflavone extracts
- Sample
- 41 studies
- Main result
- Regardless of the statistical model, no significant effect of soy protein or isoflavone intake was found on total or free testosterone, estradiol, estrone or SHBG (41 studies).
- Authors
- Reed KE et al.
- Full text
- PubMed Central (free)DOI 10.1016/j.reprotox.2020.12.019
Editorial summary by Vegan Guide based on the publication. This is not medical advice.