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Amy - The Tonic's avatar

It’s been hard for me to shake the idea that I’m pissing my money away when I buy probiotics. There’s just too many strains, and no way to know what I may need more of than another.

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Nita Jain's avatar

Understandable, very few commercial probiotics even go to the trouble of listing strains, but two strains of the same species can exhibit vastly different behaviors. Even if a strain can’t colonize, it can confer transient benefits to the host, but the personalized nature of gut microbial communities makes it nearly impossible to predict who will respond positively.

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