What role does Fertility Check play in blood sugar?

The Fertility Check is primarily designed to assess reproductive and hormonal parameters, not to directly evaluate blood sugar metabolism. Some of the tested genes (e.g., MTHFR, TCF7L2) have associations with insulin resistance or glycemic control, but effect sizes are small and not clinically actionable. Evidence for a specific role of the Fertility Check in blood sugar is therefore weak and based on indirect, mechanistic links. Meaningful blood sugar assessment requires established biomarkers such as fasting glucose, HbA1c, or an oral glucose tolerance test. The Fertility Check may provide supplementary hints at best, but does not replace medical diagnostics. Be cautious of exaggerated marketing claims: the predictive power of individual SNPs is limited and heavily confounded by lifestyle factors.