Six-Month Probiotic Powder Improved Memory Scores in Older Adults with Early Memory Problems

A small placebo-controlled trial found that a daily probiotic powder taken for six months improved memory and thinking scores in older adults with early memory problems, and lowered a blood marker linked to Alzheimer's disease. The researchers themselves caution the findings are early-stage, but say the trial adds to growing evidence that gut health influences brain function. The trial was placebo-controlled, which strengthens the signal compared with observational reports, but its small size means the results cannot yet support clinical recommendations. Open questions include whether the cognitive and blood-marker benefits hold up in larger trials, whether they translate to reduced risk of progression toward Alzheimer's, and which components of the probiotic mixture drive the effect.

Written by a model from the reports · updated 4 hours ago