Can MY FOODBOOK help with Sport?

MY FOODBOOK is a nutrigenetic test that provides dietary recommendations based on DNA variants. For sports, the evidence is weak. While some gene variants (e.g., ACTN3, ACE) are associated with performance traits, translating them into actionable nutrition strategies lacks robust support. Most studies show that genotype-matched diets do not outperform standard sports nutrition advice (e.g., POINTS-RCT, PMID 37813841). The effect sizes of tested SNPs are small and not clinically actionable. MY FOODBOOK may serve as supplementary information but should not be the sole basis for sports nutrition. Established principles like macronutrient timing, hydration, and energy balance remain paramount. The evidence for nutrigenetic tests in sports is largely marketing-driven and not backed by rigorous randomized controlled trials. Caution: no genetic test replaces professional sports medicine or dietetic guidance.