### What is Apolipoprotein B?

ApoB counts the number of harmful cholesterol particles in your blood. These are the particles that cause plaque buildup in your arteries. About 15-20% of people have high ApoB but normal cholesterol on a standard test. The 2026 AHA/ACC guidelines introduced ApoB targets alongside LDL and total cholesterol targets, reflecting growing evidence that ApoB is a more accurate predictor of heart disease risk.

### What do the 2026 AHA/ACC guidelines say about ApoB?

### How can I lower my ApoB?

### What does low ApoB mean?

### What is a normal ApoB level?

### What units is ApoB reported in?

### Is ApoB better than LDL cholesterol?

### What is ApoB and why does it matter?