What should I know about richtige ernahrung?

The question of 'proper nutrition' is broad and cannot be answered with a one-size-fits-all approach. A balanced diet generally includes whole foods, plenty of vegetables, fruits, whole grains, healthy fats, and adequate protein. However, nutrition is increasingly personalized: biomarkers such as vitamin B12, folate, methylmalonic acid (MMA), and homocysteine can indicate functional deficiencies – for example, in vegans or those with absorption issues. The evidence for these markers is moderate (PMID:15018392). Consumer DNA tests often promise personalized dietary recommendations, but the effect sizes of individual gene variants are small (e.g., a 15–30 minute sleep shift for the 'night owl' gene). Such tests cannot diagnose conditions and do not replace clinical evaluation. MyBody-X takes an integrative approach combining genes, blood markers, microbiome, and wearable data to provide holistic guidance. However, the scientific foundation for such comprehensive personalized nutrition is still emerging. Importantly, no test or algorithm can replace a varied, needs-based diet and the advice of a physician or nutritionist. For specific symptoms or risk factors, targeted lab tests are more appropriate than broad panels.