For decades, LDL (“bad”) cholesterol has been the primary focus of heart disease prevention. While it remains a crucial target, a deeper understanding of cardiovascular health reveals a complex interplay of fats in the blood. Cardiologists now emphasize that high triglycerides and low HDL (“good”) cholesterol can be just as important in determining your overall risk.
Triglycerides are a type of fat used for energy. However, when levels are high—often due to diets rich in sugar, refined carbohydrates, and excess calories—they contribute significantly to atherosclerosis. High triglycerides are a marker of metabolic dysfunction and are often found in a dangerous partnership with other lipid problems.
HDL cholesterol is your body’s “garbage truck,” responsible for removing excess cholesterol from your arteries. When HDL levels are low, this cleanup process is impaired, allowing LDL to accumulate and form plaque more easily. Low HDL is a powerful independent risk factor for heart attacks and strokes.
The most dangerous scenario is when all three problems coexist: high LDL, high triglycerides, and low HDL. This triad, known as atherogenic dyslipidaemia, is particularly common in people with metabolic syndrome and those of South Asian descent. It creates an extremely high-risk environment for early and aggressive cardiovascular disease.
Therefore, a comprehensive approach to heart health must look beyond just the LDL number. It requires a strategy to lower triglycerides (by reducing sugar and refined carbs), raise HDL (through exercise and healthy fats), and lower LDL simultaneously. By managing this entire interplay of fats, you can most effectively protect your arteries.