Myths vs facts: Nährstoffcheck and blood sugar

A nutrient test (e.g., MyBody-X) measures vitamins, minerals, and trace elements in the blood. Some of these – like magnesium, chromium, vitamin D, and B vitamins – play a role in blood sugar regulation. A deficiency may impair insulin sensitivity. However, a nutrient test does not replace established blood sugar diagnostics (HbA1c, fasting glucose, OGTT). Myth: 'The test tells me if I have diabetes.' Fact: It can provide risk hints but not a diagnosis. Many direct-to-consumer tests overstate the clinical relevance of single markers. The evidence for preventive or therapeutic use is mostly mechanistic or observational. Caveat: supplements taken without medical supervision can interact with blood sugar medications. A nutrient check is useful as a complement, not a standalone decision tool.