Stuhlprobe: which supplements make sense?

Based solely on a stool sample, no specific supplements can be recommended with scientific certainty. The microbiome field is still emerging; commercial tests provide individual microbial profiles, but there are no robust randomized controlled trials showing that supplementing based on such profiles (e.g., specific probiotics, prebiotics, or vitamins) leads to measurable health improvements. The evidence is mostly mechanistic or marketing-driven. Some general advice like increasing fiber or omega‑3 may be reasonable, but it is not test-specific. Importantly, stool tests do not replace medical diagnosis for symptoms. Consult a physician or registered dietitian before spending money on supplements that may be unnecessary or even harmful.