Evidence check: MY FOODBOOK in the context of fertility

The evidence for MY FOODBOOK in the context of fertility is weak to moderate. It is a nutrigenetic test based on gene variants associated with nutrient metabolism (e.g., MTHFR, VDR). Some variants may indirectly affect fertility (e.g., folate metabolism), but there are no direct, high-quality studies showing that the personalized dietary recommendations from MY FOODBOOK improve fertility. Evidence is mostly from GWAS and mechanistic data. Caveat: effect sizes are small; lifestyle, overall diet, and medical factors (e.g., hormonal status, cycle) dominate. The test is not diagnostic and does not replace a clinical fertility workup. Safety note: If you have known fertility issues, consult a reproductive medicine specialist.