When is Sportgene Frauen actually useful?

The usefulness of sport gene tests for women depends heavily on the scientific basis of the markers tested. The available knowledge base entries show that many consumer DNA tests (e.g., for FADS1, PPARA) rely on weak evidence and often deliver marketing claims rather than clinically validated associations. A sport gene test can be useful when it covers specific, well-established monogenic variants with direct actionable consequences – such as the HFE C282Y status (iron overload risk) or lactase persistence (rs182549). For female athletes, knowing an HFE variant can prevent indiscriminate iron supplementation, while the lactase variant only warrants dietary change if symptoms occur. Most polygenic risk scores for endurance or strength have small effect sizes and are dominated by training and lifestyle. Without accompanying blood biomarkers (e.g., ferritin, 25(OH)D, hsCRP), the benefit remains limited. Conclusion: Only for clearly defined, evidence-based single genes and in combination with clinical parameters is a sport gene test for women actually useful.