Probiotics (multi-strain)
Live bacterial cultures — typically Lactobacillus and Bifidobacterium strains — that support the gut microbiome. Microbial diversity declines with age, affecting inflammation and metabolism.
How it works
Probiotics are live bacterial cultures that can temporarily shift the gut microbiome's composition: they compete with unfavourable microbes, strengthen the gut barrier and produce useful metabolites. The effect is highly strain- and situation-specific. Best supported are effects on antibiotic-associated diarrhoea and IBS.
Dosage
1–10 billion CFU per day for multi-strain products. Prefer enteric-coated capsules.
Considerations
Effects are strain-specific — what works in one product may not work in another. Clinical studies typically reference specific strains, not probiotics as a category.
Scientific detail
Studies on Probiotics (multi-strain)
Currently in my stack:

Probiotic with Lactobacillus + Bifidobacteria, gastro-resistant capsules.



