Probiotics: Which Strains Actually Matter?

Why strain specificity matters

Different probiotic strains have different, often quite specific, researched effects — a strain studied for digestive comfort won't necessarily help with, say, immune function, even though both might be labeled generically as 'probiotics.'

What CFU count actually tells you

Colony-forming units (CFU) indicate quantity, not quality or relevance — a high CFU count of a strain with limited evidence for your specific concern isn't more useful than a lower count of a well-matched, well-researched strain.

Food sources as a starting point

Curd, buttermilk, and traditionally fermented foods common in Indian diets already provide a range of beneficial bacteria — a supplement is worth considering as an addition for specific, targeted concerns rather than a blanket necessity.

When a targeted supplement makes sense

After a course of antibiotics, or for specific digestive complaints under a doctor's guidance, a targeted probiotic strain matched to the actual issue tends to be more useful than a generic multi-strain product chosen without specific reasoning.