Apolipoprotein C-I (ApoC-I) is a protein that plays a crucial role in lipid metabolism. It is primarily found in lipoproteins, which are complexes that transport fats in the bloodstream. ApoC-I helps regulate the breakdown and clearance of triglycerides and cholesterol, contributing to overall cardiovascular health. This protein is synthesized mainly in the liver and intestines. Variations in the levels of ApoC-I can influence the risk of developing cardiovascular diseases and other metabolic disorders. Understanding its function can provide insights into managing conditions related to lipid imbalances.