How are HDL and Blutzucker related?

HDL cholesterol and blood glucose (Blutzucker) are linked through glucose and lipid metabolism. Low HDL is a well-established marker for insulin resistance and type 2 diabetes, while elevated blood glucose often co-occurs with low HDL in metabolic syndrome. HDL may support insulin secretion and reduce inflammation, but causal mechanisms remain incompletely understood. Genetic variants (e.g., in CLOCK) can modestly influence both, as suggested by an observational study (PMID:38612648). Caveat: HDL and blood glucose are two of many interrelated biomarkers; lifestyle factors (diet, exercise) are more impactful. No clinical action should be based solely on these values without comprehensive assessment.