Myths vs facts: LDL and Blutzucker

Myths vs facts: LDL and blood sugar. A common myth is that all LDL cholesterol is harmful. In reality, LDL is essential for cell function, and it's the small, dense LDL particles that are most atherogenic, not the large, buoyant ones. Another myth: high blood sugar always means diabetes. Fasting glucose between 100–125 mg/dL (impaired fasting glucose) is a risk factor, but many people never progress to diabetes. Fact: chronically elevated blood sugar (HbA1c >6.5%) damages blood vessels and nerves, increasing cardiovascular and kidney disease risk. The idea that sugar directly causes type 2 diabetes is oversimplified; excess calories, obesity, and genetics are stronger drivers. Evidence from large cohort studies (e.g., Framingham Heart Study, EPIC) and RCTs (e.g., PREDIMED) supports that a diet rich in unsaturated fats, fiber, and low glycemic index foods improves both LDL and blood sugar. Beware of fad diets: very low-carb diets can raise LDL in some individuals, while high sugar intake spikes glucose. Personalized monitoring (fasting glucose, lipid panel) is useful but not diagnostic. Always consult a healthcare professional for interpretation and management.