Lipid Profile
A blood test measuring cholesterol and triglycerides — a key screening tool to assess heart disease risk during weight management.
Plain English
Patient-Friendly Explanation
A lipid profile — also called a cholesterol panel — is a blood test that measures different types of fats in your bloodstream: total cholesterol, LDL ("bad") cholesterol, HDL ("good") cholesterol, and triglycerides. It is a key screening tool for assessing your heart disease risk. High LDL and triglyceride levels are common in people carrying excess weight, and these numbers typically improve with weight loss.
Medical
Clinical Definition
A fasting lipid profile (FLP) quantifies total cholesterol, LDL-C, HDL-C, and triglycerides from a venous blood sample after a 9–12 hour fast. Target values per Singapore MOH clinical practice guidelines: LDL-C < 3.4 mmol/L, HDL-C > 1.0 mmol/L (men) or > 1.3 mmol/L (women), triglycerides < 1.7 mmol/L, and total cholesterol < 5.2 mmol/L. Non-HDL-C (total minus HDL) is increasingly used as a superior atherogenic risk marker, with a target < 3.4 mmol/L. The test should be repeated within 3–6 months of initiating lifestyle or pharmacological intervention.
Key Insight
Why It Matters
A lipid profile is one of the most important screening tests in weight management. Dr Joseph Wang uses it at Accord Medical to establish baseline cardiovascular risk and monitor how your lipid numbers improve as you lose weight — giving you objective evidence that your health is getting better.
What a lipid profile measures
A lipid profile (cholesterol panel) is a blood test that measures the fats in your blood. The four numbers doctors read together:
- Total cholesterol — the sum of all cholesterol in the blood
- LDL cholesterol — the 'bad' cholesterol that builds up in artery walls
- HDL cholesterol — the 'good' cholesterol that helps clear cholesterol away
- Triglycerides — the form fat travels in after meals; high levels track with abdominal fat, sugar and alcohol
Why lipids matter in weight management
Excess weight — especially visceral fat — drives the liver to produce more LDL and triglycerides while lowering HDL. That pattern is one of the main bridges between obesity and heart disease, and it is also one of the most reversible:
- Losing 5–10% of body weight measurably lowers LDL and triglycerides and raises HDL
- The improvements appear within weeks to months of weight loss
- Visceral fat loss specifically improves the triglyceride-to-HDL ratio
- For some patients, weight loss alone brings lipids back into range without medication
What the numbers mean
Targets are personalised, but as a general guide for adults:
- LDL: ideally below 2.6 mmol/L (lower targets apply in diabetes or heart disease)
- HDL: above 1.0 mmol/L in men, above 1.3 mmol/L in women
- Triglycerides: below 1.7 mmol/L fasting
- Your doctor sets YOUR targets based on age, blood pressure, diabetes and family history
How to improve your lipid profile
The same plan that moves your weight moves your lipids:
- Calorie deficit and weight loss — the single most powerful lever
- Swap saturated fats (fried food, coconut-heavy dishes, fatty meats) for unsaturated sources (fish, nuts, olive oil)
- More soluble fibre — oats, beans, vegetables — lowers LDL directly
- Less added sugar and alcohol — both raise triglycerides
- Regular exercise — raises HDL and lowers triglycerides
- Retest after 3 months of weight loss to see the real effect
Common questions
What is a lipid profile blood test?
A blood test measuring total cholesterol, LDL ('bad') cholesterol, HDL ('good') cholesterol and triglycerides. It is the standard screen for cardiovascular risk and a routine part of the clinic's weight-management assessment.
Do I need to fast for a lipid test?
Many modern labs measure non-fasting lipids reliably, but some tests still prefer an 8–12 hour fast, especially for triglycerides. Your doctor will tell you what applies before you book.
How quickly does weight loss improve cholesterol?
Meaningful improvements in LDL and triglycerides usually appear within 3 months of losing 5–10% of body weight. HDL rises more slowly, with sustained exercise and weight maintenance.
Can I improve my lipid profile without medication?
Often yes — weight loss, dietary fat swaps, fibre, exercise and cutting sugar and alcohol can bring lipids into range for many people. Medication remains appropriate when risk is high or targets are not met; the two approaches are complementary, not either-or.
Sources
Reviewed against standard medical references.
Medically reviewed by
Family Physician & Registered Acupuncturist, Accord Medical Clinic. MBBS (NUS), Graduate Diploma in Family Medicine (NUS), Graduate Diploma in Acupuncture (Singapore College of TCM).
Last reviewed: August 2026
This page is general health education, not medical advice. Whether any treatment is appropriate for you is a decision made in consultation after assessment.
