Can cholesterol be too low?

Very low LDL (< 40 mg/dL) has been associated with hemorrhagic stroke risk in some studies, but for most people lower LDL is better. HDL below 25 mg/dL is linked to poor outcomes.

Do eggs raise cholesterol?

Dietary cholesterol (from eggs) has minimal impact on LDL for most people. Saturated fat matters far more. Current guidelines do not restrict eggs for healthy adults.

How long does it take to lower cholesterol through diet?

Meaningful LDL reduction from dietary changes is measurable in 4–6 weeks. Full effect at 3 months.

What is atherogenic dyslipidemia?

High triglycerides + low HDL + normal or mildly elevated LDL. Common in metabolic syndrome. More predictive of CVD than LDL alone in some populations.

How do I calculate my cardiovascular risk?

FreeBMIKit's Cholesterol Risk Calculator uses the simplified Framingham model to estimate your 10-year CVD risk and provides category-specific recommendations.

Cholesterol Explained: HDL, LDL, Triglycerides, and Your Heart Health

Q: Can cholesterol be too low?

Very low LDL (< 40 mg/dL) has been associated with hemorrhagic stroke risk in some studies, but for most people lower LDL is better. HDL below 25 mg/dL is linked to poor outcomes.

Q: Do eggs raise cholesterol?

Dietary cholesterol (from eggs) has minimal impact on LDL for most people. Saturated fat matters far more. Current guidelines do not restrict eggs for healthy adults.

Q: How long does it take to lower cholesterol through diet?

Meaningful LDL reduction from dietary changes is measurable in 4–6 weeks. Full effect at 3 months.

Q: What is atherogenic dyslipidemia?

High triglycerides + low HDL + normal or mildly elevated LDL. Common in metabolic syndrome. More predictive of CVD than LDL alone in some populations.

Q: How do I calculate my cardiovascular risk?

FreeBMIKit's Cholesterol Risk Calculator uses the simplified Framingham model to estimate your 10-year CVD risk and provides category-specific recommendations.

What Is Cholesterol and Why Do We Have It

Cholesterol is essential: it builds cell membranes, produces steroid hormones (testosterone, estrogen, cortisol), makes bile acids, and enables vitamin D synthesis. The liver produces 75% of your cholesterol. Diet accounts for 25%.

HDL, LDL, and VLDL Explained

LDL (low-density lipoprotein): carries cholesterol to tissues; excess deposits in artery walls → atherosclerosis. HDL (high-density lipoprotein): carries cholesterol back to liver for elimination (reverse cholesterol transport) — protective. VLDL: very low density; primarily carries triglycerides.

Target Ranges

Total cholesterol: < 200 mg/dL optimal. LDL: < 100 mg/dL ideal; < 70 mg/dL for very high-risk patients. HDL: > 60 mg/dL protective; < 40 mg/dL (men) or < 50 mg/dL (women) is risk factor. Triglycerides: < 150 mg/dL optimal.

What Raises LDL

Saturated fat (main dietary driver). Trans fats (now largely banned but still in some processed foods). Genetics (familial hypercholesterolemia — LDL > 190 mg/dL). Hypothyroidism, kidney disease. Sedentary lifestyle.

Cardiovascular Risk Beyond Cholesterol

The Framingham Risk Score combines: age, gender, total cholesterol, HDL, systolic BP, smoking status, and diabetes. It estimates 10-year CVD risk. A person with "normal" cholesterol but several other factors may have higher risk than someone with elevated LDL but no other factors.

How to Improve Your Cholesterol Profile

LDL-lowering: Reduce saturated fat, increase soluble fiber (oats, legumes), plant sterols, statins if prescribed. HDL-raising: Exercise (most effective), quit smoking, reduce refined carbs. Triglycerides-lowering: Cut sugar and refined carbs, omega-3 fatty acids, lose weight.