How are BDNF and Blutzucker related?

The direct relationship between BDNF (Brain-Derived Neurotrophic Factor) and blood sugar is not addressed in the provided context. In general scientific literature, BDNF is known to influence both brain health and peripheral glucose metabolism. Low BDNF levels have been linked to insulin resistance and type 2 diabetes, and some studies suggest BDNF may improve insulin sensitivity. However, the evidence is largely mechanistic or from animal models; large human trials are lacking. The context only discusses the BDNF Val66Met polymorphism (rs6265) in relation to exercise and mood, not blood sugar. Therefore, the evidence for a direct BDNF–blood sugar link is weak based on the given information. For optimizing blood sugar, focus on established lifestyle factors like diet, exercise, and sleep. Genetic testing for BDNF variants is not currently supported for this purpose.