Atherogenic Index of Plasma (AIP)
A powerful logarithmic marker for predicting cardiovascular risk
Last updated on: July 1, 2025
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What is the Atherogenic Index of Plasma (AIP)?
The Atherogenic Index of Plasma (AIP) is a logarithmically transformed ratio of Triglycerides to HDL-Cholesterol. It is a strong indicator of the atherogenic potential of plasma.
AIP correlates significantly with the size of LDL particles. A high AIP value is associated with a predominance of small, dense LDL particles, which are highly atherogenic and increase the risk of plaque formation in arteries.
Why is AIP a Powerful Marker?
- It reflects the balance between atherogenic (risk-promoting) and anti-atherogenic (protective) lipoproteins.
- It is a better predictor of heart disease risk than individual lipid markers, especially in patients with normal LDL-C levels.
- A high AIP is a strong, independent risk factor for atherosclerosis and coronary heart disease.
Interpreting the Result
Managing Your Atherogenic Risk
A high AIP indicates an unfavorable lipid profile. Improving this index involves strategies to lower triglycerides and/or raise HDL cholesterol.
- Reduce intake of sugars and refined carbohydrates, which are major drivers of high triglycerides.
- Increase intake of omega-3 fatty acids found in fatty fish, flaxseeds, and walnuts.
- Engage in regular aerobic exercise, which is proven to raise HDL levels.
- Maintain a healthy weight and limit alcohol consumption.
- Consult your doctor for a comprehensive management plan.
This page has been medically reviewed by Dr. Khoulah Attia – PharmD, Immunology Specialist.