Myths vs facts: Fertility Check and gut health

Combining fertility and gut health checks via DNA tests is an area where marketing often outpaces evidence. Some tests analyze SNPs linked to fertility (e.g., FSH receptor, MTHFR) or gut microbiome composition (e.g., LCT, FUT2). However, effect sizes are typically small (GWAS, moderate evidence). A fertility DNA check cannot replace clinical diagnosis – fertility is influenced by many non-genetic factors. For gut health, microbiome tests provide only mechanistic insight (bacterial diversity) but no causal disease statement. Evidence is mostly mechanistic or observational. Bottom line: Such tests can serve as a lifestyle impulse, but not as a medical decision basis. Always consult a doctor for specific concerns.