
Probiotics: Strain-Specific, or Nothing
The species on the front of the box tells you almost nothing. Effects are documented at the strain level, and most products do not name theirs.
A field where the marketing has run considerably ahead of the science. Strain specificity is everything: results from one strain say nothing about another, and most products list neither the strain nor a viable count. These pages cover what specific strains have been shown to do and how to read a label.
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