‘血糖’ literally means ‘blood sugar’ — a compound noun formed by combining 血 (xuè, ‘blood’) and 糖 (táng, ‘sugar’). It refers specifically to the concentration of glucose circulating in the bloodstream, a key indicator of metabolic health. In clinical and everyday contexts, 血糖 is central to discussions about diabetes, nutrition, fasting, and physical activity.

This term is used both as a general concept (e.g., ‘high blood sugar’) and in measured values (e.g., ‘my fasting 血糖 is 5.8 mmol/L’). Unlike English, Chinese often omits units or qualifiers when context is clear — so 血糖 alone can imply ‘blood glucose level’. It appears frequently in medical reports, health apps, dietary advice, and conversations with doctors or family members concerned about wellness.