Heart & long-term risk
Also known as Lipoprotein(a), Lp little a. Measured in nmol/L.
Lp(a), pronounced "L-P-little-a", is a cholesterol-carrying particle whose blood concentration is set almost entirely by the genes you inherited. Unlike LDL cholesterol, it barely responds to diet, exercise or weight loss, and it stays broadly stable across adult life. That combination makes it unusual among blood markers: it is measured once, and the result is treated as a fixed property of the person rather than something to be tracked. A high Lp(a) independently raises the risk of heart attack, stroke and aortic valve narrowing, and it does so on top of whatever the rest of the lipid panel shows. Because it is invisible on a standard cholesterol test, a person can carry substantially elevated lifetime risk while every routine result they have ever seen looked normal.
Lp(a) is set almost entirely by inheritance and does not respond meaningfully to diet, exercise or weight loss.
It needs measuring only once in adult life, because the level stays broadly stable.
Elevated Lp(a) is more common in South Asian populations and appears on no routine Indian lipid panel.
Elevated Lp(a) raises cardiovascular risk independently of LDL and ApoB, and the effect is lifelong rather than recent. It does not mean an event is imminent; it means the threshold for controlling every other modifiable risk factor should be lower. It is also a reason to look at first-degree relatives, since the trait is inherited.
A low Lp(a) is favourable and removes one inherited contributor to cardiovascular risk. It says nothing about the rest of the lipid panel — a low Lp(a) alongside a high ApoB still describes someone at meaningful risk.
| Band | Value |
|---|---|
| Desirable | < 75 nmol/LApproximately < 30 mg/dL |
| Intermediate | 75 – 125 nmol/L |
| High risk | > 125 nmol/LApproximately > 50 mg/dL |
Laboratory intervals vary. Interpret with a physician.
Elevated Lp(a) is more common in South Asian populations than in most European-ancestry groups, and it is one of the mechanisms proposed for why coronary disease appears earlier and at lower body weight in Indians. It is rarely included in Indian health-checkup packages, so the great majority of people carrying a high level have never been measured.
A high Lp(a) should be discussed with a physician, especially where a parent or sibling had a heart attack or stroke before 55 (men) or 65 (women). It is not an emergency finding and does not require urgent action, but it does change how aggressively the rest of the risk picture should be managed.
Once in adult life is sufficient for most people. The level is genetically determined and does not meaningfully drift, so repeat testing adds little unless a laboratory error is suspected or a new therapy specifically targeting Lp(a) is being considered.
Not to any clinically useful degree. This is the marker that does not respond to the usual levers, which is precisely why it is worth knowing: it shifts the effort onto the factors that do respond, such as ApoB, blood pressure, insulin sensitivity and smoking.
Laboratories report either nmol/L, which counts particles, or mg/dL, which measures mass. They are not interchangeable by a fixed conversion because particle size varies between people. nmol/L is the preferred unit; where a report gives mg/dL, roughly 30 mg/dL corresponds to 75 nmol/L.
The programme
Peak Brain draws a full blood and urine panel at your home, has a licensed physician read every marker together rather than one at a time, and turns what they find into a ranked 90-day protocol with a retest at the end.
Authorship & review
Written by the Peak Brain clinical team. Assigned clinical reviewer: Dr. Nitesh Arora, MD, DM — review pending; this page has not yet been signed off.
Published . Last updated .
This page is general health information, not medical advice, diagnosis or treatment. Reference ranges vary between laboratories. Never delay or disregard advice from a qualified health professional because of something you read here. If you think you may have a medical emergency, call your local emergency number.