Key takeaways
- LDL is the primary target — lower is better than most people think.
- HDL matters less than we used to think.
- Triglycerides are heavily diet-driven — often fixable.
- Family history changes the whole conversation.
What's on the panel
A standard lipid panel measures four things: total cholesterol, LDL ("bad"), HDL ("good"), and triglycerides. Only one of them is the primary driver of cardiovascular risk: LDL.
The old-school "total cholesterol" number is the least useful. If your LDL is high, that's what matters, even if total is average.
What the numbers mean
Roughly, for adults without existing cardiovascular disease:
- LDL — Below 100 mg/dL is optimal; below 70 mg/dL if you're high risk
- HDL — Above 40 (men) or 50 (women) is protective, but bigger isn't dramatically better
- Triglycerides — Below 150 is desirable; above 200 usually reflects diet
- Total — Below 200 is often quoted but is a weak signal on its own
If you already have heart disease, diabetes, or a strong family history, targets get more aggressive.
What moves each one
- To lower LDL: reduce saturated fat, increase soluble fibre (oats, legumes), lose weight if overweight, exercise regularly
- To raise HDL: exercise, more so than diet; olive oil, nuts, fatty fish help modestly
- To lower triglycerides: reduce added sugar and refined carbs, limit alcohol, exercise. Very responsive to change
- Family history matters: familial hypercholesterolemia can produce very high LDL despite good habits — worth screening for if numbers don't respond to lifestyle
LDL is the single most well-established causal risk factor for atherosclerosis. If yours is high, that's the conversation to have — not whether butter is back.
— Dr. Aditya Nair
On statins (briefly)
Statins are one of the most-studied classes of medication in modern medicine. They lower LDL and, in people with elevated cardiovascular risk, reduce heart attacks and strokes. They also have real side effects in a minority of users.
The decision to start one is nuanced and belongs with your doctor. But the internet debate around them is far louder than the evidence supports.
The takeaway
Know your LDL. Know your triglycerides. Know your family history. Repeat the panel every few years. Lifestyle plus, in some cases, medication makes cardiovascular disease one of the most preventable major killers we have.
For a broader annual routine, see our screenings guide.
