research Causal Relationship Between Gut Microbiota and Androgenetic Alopecia: A Mendelian Randomization Study December 2024 in “Medicine” Gut bacteria may affect hair loss risk.
research Causal Relationship Between Gut Microbiota And Androgenic Alopecia: A Mendelian Randomization Analysis April 2025 Certain gut bacteria may protect against or increase the risk of hair loss.