Myth
Any yoghurt is a proven probiotic.
Reality
Only products with live, identified strains and evidence meet the usual definition.
Aisle banners flatten strain science into 'good bacteria'. Trials are pickier.
Myths below are common queries. They are not a prescription.
Myths vs evidence
Myth
More CFU is always better.
Reality
Dose should match a trial. Extra zeros can be theatre.
Myth
Probiotics colonise you forever.
Reality
Most are transient. Stop the bottle and they usually fade.
Myth
They are safe for every body.
Reality
Rare infections occur in highly vulnerable patients. Ask a clinician if that is you.
Myth
A capsule cancels junk food.
Reality
Fibre and sleep still do the heavy everyday work.
Myth
Home-grown 'probiotics' are better.
Reality
This atlas gives no culture protocols. Random growth can include pathogens.
If a claim says one gummy replaces fibre, sleep and medicine, it is selling a story.
Keep exploring
More in Beneficial allies
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A diverse intestinal community fed by fibre — not a single ideal species list and not a wellness shop.
Familiarity 88Fermentation
Microbes turning food into kimchi, doenjang, yoghurt and other living crafts — chemistry plus culture.
Familiarity 85Skin microbiome
A site-specific living film — oily, moist and dry neighbourhoods, not a sterile wrapper.
Familiarity 62Soil microbes
The hidden workforce of land — decomposers, mycorrhizae and a mostly uncultured majority.
Familiarity 48Nitrogen cycle
How microbes move nitrogen between air, soil, water and food — plus the industrial shortcut that feeds billions.
Familiarity 40