Probiotic supplements are effective in people with cognitive impairment: a meta-analysis of randomized controlled trials.
Nanyang LiuDi YangJiahui SunYapeng LiPublished in: Nutrition reviews (2023)
According to this meta-analysis, probiotic supplementation had a highly significant effect on cognitive function in people with cognitive impairment or Alzheimer's disease. For people without cognitive impairment, probiotic supplementation may be ineffective.