Can MY FOODBOOK help with blood sugar?

MY FOODBOOK is a DNA-based nutrition program from MyBody-X. The scientific evidence that it directly helps with blood sugar is weak. While variants like TCF7L2 (rs7903146) increase type 2 diabetes risk, lifestyle interventions reduce that risk regardless of genotype. Most polygenic risk scores from DTC tests have limited predictive power, especially for non-European ancestries. Blood sugar is more strongly influenced by diet, physical activity, and weight than by single genes. MY FOODBOOK may serve as a motivational tool, but it does not replace medical advice or proven strategies like a Mediterranean diet and regular exercise. Without clinical validation data, its benefit for blood sugar management remains unclear.