MY FOODBOOK + Diätplan: what are common causes?

A personalized nutrition plan like the MyBody-X Foodbook + diet plan may fail to deliver expected results for several common reasons. Genetic factors play a role: the LEPR gene (leptin receptor) regulates body weight, and mutations can disrupt satiety signaling, contributing to obesity (source: NCBI). Variants in APOA5 (e.g., rs3135506) are linked to elevated triglyceride levels, affecting fat metabolism. However, direct-to-consumer genetic tests often lack clinical validation and should not be used alone for dietary decisions (PMID 38474735, 40079117). Additionally, improper finger-prick blood collection (as with MyBody-X's nutrient test) can yield unreliable results. Lifestyle factors such as sleep, stress, and physical activity are frequently overlooked. The diet plan is best used as a general guide; persistent issues warrant professional medical evaluation with validated lab tests.