MY FOODBOOK + Diätplan: which blood markers matter?

For a personalized diet plan (e.g., My Foodbook), relevant blood markers include those reflecting nutritional status, metabolism, and cardiovascular risk: vitamin B12, homocysteine, vitamin D, iron status (ferritin, transferrin), blood lipids (LDL, HDL, triglycerides), fasting glucose, and HbA1c. Genetics, such as FUT2 variants, can influence B12 absorption and thereby homocysteine levels, indirectly affecting cardiovascular risk. However, evidence for direct, genetics-based diet plans is still limited – many markers are more strongly influenced by diet and lifestyle. Blood tests currently provide more actionable data than DNA tests alone. A diet plan should be based on measured blood values, supplemented by genetic insights, but not solely on DNA. Caveat: homocysteine is not a direct cholesterol predictor, and many markers fluctuate daily. Consult a physician before changing supplements or diet.