How are Nährstoffcheck and sleep related?

The MyBody-X Nährstoff | VitalCheck Basic analyzes key micronutrients such as magnesium, vitamin D3, ferritin, and folate. These nutrients are indeed linked to sleep quality: magnesium supports nervous system relaxation and may help with insomnia, vitamin D deficiency is associated with shorter sleep duration and poorer sleep efficiency, and low ferritin (iron stores) can contribute to restless sleep and restless legs syndrome. However, this test is not a diagnostic tool for sleep disorders – it only provides clues about potential nutrient deficiencies that might affect sleep. The evidence for a direct causal relationship between individual nutrients and sleep is mostly mechanistic or based on observational studies; randomized controlled trials often show mixed results. Moreover, sleep problems have many other causes (stress, hormones, sleep hygiene). The test can serve as complementary information but does not replace medical evaluation. Caveat: normal nutrient levels do not rule out sleep issues, and supplementation without medical advice is not recommended.