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1. Grant AD, Erfe MCB, Delebecque CJ, Keller D, Zimmerman NP, Kazaryan A, Oliver PL, Moos J, Luna V, Craft N. Lactiplantibacillus plantarum Lp815 improves sleep and increases urinary GABA in a randomized, double-blind, placebo-controlled study of sleep disturbance. Sci Rep. 2026 Jan 19;16(1):644.
https://www.nature.com/articles/s41598-025-27861-6

2. Grant AD, Erfe MCB, Delebecque CJ, Keller D, Zimmerman NP, Oliver PL, Youssef B, Moos J, Luna V, Craft N. Lactiplantibacillus plantarum Lp815 decreases anxiety in people with mild to moderate anxiety: a direct-to-consumer, randomised, double-blind, placebo-controlled study. Benef Microbes. 2025 Apr 24;16(5):521-532.
https://pubmed.ncbi.nlm.nih.gov/40312029/