Research
Mixed
There is no clinical evidence from Randomized Controlled Trials (RCTs) for the gastrointestinal health effects of kombucha, miso, kimchi, or tempeh in humans.
Be cautious with claims about kombucha, kimchi, miso, and tempeh curing gut diseases. While they are healthy foods with interesting properties, there are no human clinical trials proving they treat gastrointestinal disorders. Enjoy them as part of a balanced diet, but don't rely on them as medicine yet.
StrongRefutesVERY_HIGH confidence
Despite extensive in vitro studies, there are no RCTs investigating the impact of kombucha, miso, kimchi or tempeh in gastrointestinal health.
Why this rating
This is a systematic review finding, highly reliable in its assertion of absence of data.
Source
Fermented Foods: Definitions and Characteristics, Impact on the Gut Microbiota and Effects on Gastrointestinal Health and Disease
Eirini Dimidi et al. · Nutrients · 2019
narrative_reviewCited 747×
Read the paper This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →