wie viele gene hat der mensch — can a microbiome test help?

The question combines two distinct topics: the number of human genes and the utility of a microbiome test. Humans have approximately 20,000–25,000 protein-coding genes according to current scientific consensus; the total count including non-coding RNA genes and regulatory elements is higher but not uniformly defined. A microbiome test analyzes gut bacterial composition. Evidence for general health benefits in asymptomatic individuals is weak – many markers lack standardization and individual variability is high. The provided context notes that IgG-based tests (as in the KombiCheck) are not validated. For specific complaints like bloating, a microbiome test may offer supplementary clues but does not replace medical diagnosis. Marketing claims suggesting comprehensive health optimization should be viewed critically. In summary: the gene count is well-established, while the benefit of a microbiome test for the general population is poorly supported and should not be overestimated.