Food cultures
Yoghurt with live S. thermophilus and Lactobacillus delbrueckii subsp. bulgaricus is a documented pair.
Some strains have evidence for antibiotic-associated diarrhoea in specific groups. Many popular claims — immunity, weight, mood — are mixed or weak.
People with central lines or severe immune suppression have rare infection reports from live products. That is a clinician conversation.
Body interfaces
Targeted trial uses
A few strain–outcome pairs have randomised data. Read the strain, not the aisle banner.
Immunocompromised risk
Live microbes are the point — and the hazard in rare vulnerable settings. Ask a clinician.
Label inflation
Billion-CFU shouting can hide missing strain IDs and missing trials.
Not a junk-diet eraser
Capsules do not cancel low fibre. See the gut-microbiome topic.
Hospital products
Some wards restrict live yoghurts. Policy tracks risk, not anti-food ideology.
A fermented food you enjoy is still food. A capsule is a product. Neither replaces fibre.
Keep exploring
More in Beneficial allies
Gut microbiome
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