Can Selen help with Blutzucker?

The question whether selenium can help with blood sugar cannot be directly answered from the provided contexts – there is no specific study or statement about selenium and blood sugar in the given materials. Generally, selenium acts as an antioxidant and is involved in thyroid function and insulin signaling. Some observational studies suggest a link between low selenium status and increased diabetes risk, but randomized controlled trials show inconsistent results. High selenium doses can even be toxic and may increase diabetes risk. Therefore, while selenium is essential in trace amounts, supplementation for blood sugar control is not supported by strong evidence. A blood test to assess selenium status is advisable before any supplementation. Caveat: The provided contexts contain no direct evidence; this answer is based on general medical knowledge.