Probiotics reduce negative mood over time: the value of daily self-reports in detecting effects.
Johnson KV; Steenbergen L · 2025 · Npj mental health research
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
The burgeoning field of the microbiome-gut-brain axis has inspired research into how the gut microbiome can affect human emotion. Probiotics offer ways to investigate microbial-based interventions but results have been mixed, with more…
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Metadata source: Europe PMC · DOI 10.1038/s44184-025-00123-z