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Combination of poly-γ-glutamic acid and galactooligosaccharide improves intestinal microbiota, defecation status, and relaxed mood in humans: a randomized, double-blind, parallel-group comparison trial.
Umeda K, Ikeda A, Uchida R, Sasahara I, Mine T, Murakami H, Kameyama K. Umeda K, et al. Among authors: sasahara i. Biosci Microbiota Food Health. 2023;42(1):34-48. doi: 10.12938/bmfh.2021-084. Epub 2022 Jul 20. Biosci Microbiota Food Health. 2023. PMID: 36660591 Free PMC article.