Myths vs facts: BDNF and Blutzucker

Myths vs facts about BDNF and blood sugar: BDNF (Brain-Derived Neurotrophic Factor) is primarily known for its role in neuronal health, but emerging evidence links it to glucose metabolism. A common myth is that BDNF directly lowers blood sugar – in reality, BDNF levels rise with exercise and certain nutrients (e.g., omega-3s), which can indirectly improve insulin sensitivity. Another myth is that BDNF supplements are a magic bullet for diabetes. Evidence is weak; oral BDNF is degraded in the gut and does not reach the brain effectively. Fact: Regular physical activity and a balanced diet boost endogenous BDNF production, supporting better blood sugar regulation. The evidence is moderate – human studies exist but are not conclusive enough for clinical guidelines. Be cautious of exaggerated marketing claims. Consumer tests for BDNF (e.g., saliva) are not standardized and lack diagnostic validity.