How are SHBG and Blutzucker related?

SHBG (sex hormone-binding globulin) and blood glucose are inversely related: lower SHBG levels are consistently associated with higher insulin resistance and increased risk of type 2 diabetes. SHBG binds sex hormones, and its decline often reflects metabolic dysfunction. However, the relationship is bidirectional – insulin suppresses SHBG production in the liver, while low SHBG may worsen insulin resistance. Evidence comes from large observational studies and mechanistic research, but causality is not fully established. SHBG should not be interpreted in isolation; it must be combined with fasting glucose, HbA1c, and insulin. Caveat: SHBG levels are influenced by sex, age, liver disease, and medications (e.g., oral contraceptives). A single measurement without clinical context can be misleading. For personalized assessment, consult a physician.