Is an ApoB of 120 high?
Yes. The 2026 US guideline lists an ApoB of 120 mg/dL (1.20 g/L) or more as a risk enhancer, one of the things that raise your heart risk above what your other numbers say. It’s higher than about 86 of 100 untreated US adults. It’s still under 140, the line where the guideline calls it severe.
What we’d do
Bring it to your doctor at your next visit, and start the food changes now rather than waiting for that visit. If a parent, brother or sister had a heart attack or stroke young (a man before 55, a woman before 65), say so, since that’s on the same list. If you’re already on a cholesterol medicine, the person who prescribes it decides what’s next. Never stop a medicine on your own.
What a risk enhancer does
Doctors start with a 10-year risk score. When that score comes out borderline, the guideline says things on its risk enhancer list help decide whether starting a cholesterol medicine makes sense. An ApoB of 120 or more is on that list, beside a family history of early heart disease, a high Lp(a) and an LDL that stays at 160 or more.
| Your risk | Goal | At 120 |
|---|---|---|
| Borderline or intermediate | under 90 | 30 over |
| High | under 70 | 50 over |
| Heart attack, stroke, stent or bypass | under 60 | 60 over |
| Low | no number goal | still a risk enhancer |
120 in particles
At 120, your blood carries about 1 in 3 more ApoB particles than at 90, the middle for untreated adults. Each one is a particle that can get into an artery wall.
Food and medicine, each at its own trial’s average size.
Halving saturated fat took about 6 to 7 off in a four-week feeding trial. LDL-lowering medicine took ApoB down 33% on average across 11 trials, about 40 points from 120. Trials tested them one at a time, and together they usually add up to less than the sum.
How far food can take you
From 120, the goal for borderline risk is 30 points away. The biggest single food change sized for ApoB, halving saturated fat, took off about 6 to 7. Swapping meat for beans, nuts and soy took off about 3 to 4. In the same trial, the group on high saturated fat with red meat averaged 73, and the group on low saturated fat with plant protein averaged 63, a 10 point gap.
Food can move a 120, and you should do it. But a 30 point gap is bigger than food has closed in any trial we found, which is why 120 is a number to discuss with a doctor and not only a diet project. What would lower my ApoB? shows each change against your gap.
Check it’s real
At 120, two tests can differ by about 18 points with nothing changed. If this is your first ApoB, a retest at the same lab gives you a steadier number, and two draws a few days apart steadier still. Is my ApoB high? and the checker below hold 120 against every goal.
4 sources
- Blumenthal RS, Morris PB, Gaudino M and others, 2026 ACC/AHA guideline on the management of dyslipidemia, JACC, 2026doi.org
- The same guideline, full text, Circulation, 2026api.iscpcardio.org
- Soffer DE, Marston NA, Maki KC and others, Role of apolipoprotein B in the clinical management of cardiovascular risk in adults: an Expert Clinical Consensus from the National Lipid Association, Journal of Clinical Lipidology, 2024pmc.ncbi.nlm.nih.gov
- Bergeron N and others, red meat, white meat and plant protein on high and low saturated fat diets, a feeding trial in 113 adults, American Journal of Clinical Nutrition, 2019pmc.ncbi.nlm.nih.gov
