Very Low-Density Lipoproteins (VLDL) are a type of lipoprotein produced by the liver. They primarily transport triglycerides, a type of fat, from the liver to various tissues in the body. VLDL is considered one of the "bad" cholesterol types because high levels can lead to plaque buildup in arteries, increasing the risk of heart disease. VLDL is composed of lipids and proteins, with a higher fat content compared to other lipoproteins like Low-Density Lipoproteins (LDL). As VLDL circulates in the bloodstream, it gradually loses triglycerides and transforms into LDL, which can further contribute to cardiovascular issues if present in excess.