21/10/2026
Most people try to fix their gut by adding more bacteria.
The smarter move is fixing the environment those bacteria live in.
A 2018 study in Cell looked directly inside people's guts while they took an 11 strain probiotic. Many guts resisted the new bacteria, and where they did show up, the effect was temporary. (Zmora et al., 2018)
Prebiotics work differently. They're the fibres your own gut bacteria feed on. Your microbes ferment them into short chain fatty acids like butyrate, which protect your gut lining and help calm inflammation. (Holscher, Gut Microbes, 2017)
Think of it like a garden. Keep buying new plants and nothing grows in poor soil. Fix the soil and the garden looks after itself.
Start with oats, legumes, onions, garlic, leeks, asparagus, slightly green bananas, and cooked then cooled potatoes or rice. Build up slowly to avoid bloating.
Your gut isn't broken. It's underfed.
Save this for your next shop.