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Simulations of your gut may predict which probiotics will stick

Tests of “digital gut” simulations hint at personalized probiotics but not a cure‑all yet

An illustration shows three scientists, one with an oversized magnifying glass. examining a large diagram of a human intestine filled with colorful microbes.

What counts as “good” bacteria depends on the individual and the environment.

Malte Mueller/Getty Images

By Nora Bradford

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Figuring out which bacteria or other nutrients your gut needs may one day be as simple as running detailed computer simulations.