human
What are some of the most important things I should know about cholesterol?
assistant
Some of the most important things to know about cholesterol include: 
1. Cholesterol is a waxy, fat-like substance found in all cells and is essential for cell membranes and hormones.
2. High levels of LDL (bad) cholesterol can increase your risk of heart disease, stroke, and other health problems.
3. HDL (good) cholesterol helps remove excess LDL cholesterol from the body.
4. Dietary cholesterol is found mainly in animal products such as meat, eggs, and dairy.
5. Plant sources of dietary cholesterol include nuts, seeds, legumes, and avocados.