Normal range: 80 – 175 mg/dL (higher is better)
ApoA1 is the main structural protein of HDL ("good") cholesterol particles. Higher levels reflect better reverse cholesterol transport, the process that removes cholesterol from artery walls and carries it back to the liver for disposal. Low ApoA1 is an independent predictor of cardiovascular disease. While HDL cholesterol measures the amount of cholesterol carried by HDL particles, ApoA1 reflects the number and functionality of those particles.
A normal ApoA1 is 80 – 175 mg/dL. Higher is better.
Low ApoA1 is commonly caused by a sedentary lifestyle, smoking, and diets high in trans fats. Metabolic syndrome and insulin resistance suppress HDL production, dragging ApoA1 down with it. Uncontrolled diabetes and obesity are strong drivers.
Certain medications such as beta-blockers and anabolic steroids can lower ApoA1. Genetic factors also play a role, as some people naturally produce less regardless of lifestyle.
Regular aerobic exercise is the single most effective way to raise ApoA1. Quitting smoking, losing excess weight, and replacing trans and saturated fats with unsaturated fats (olive oil, nuts, avocado, fatty fish) also help. Moderate alcohol intake raises ApoA1 slightly, but the overall health risks of alcohol generally outweigh this benefit. Niacin (vitamin B3) can raise ApoA1, though it has fallen out of favor due to side effects.
ApoA1 is most highly correlated with HDL Cholesterol and Total Cholesterol. Here are the top biomarkers correlated with ApoA1, based on 500,000 tests done by Empirical Health.
The percentage shows how strongly two biomarkers move together. A higher number means the relationship is stronger. Green = rises and falls together. Orange = one rises as the other falls.
You can test your ApoA1 for $190 as part of Empirical's comprehensive health panel, which includes 100 biomarkers.
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