Why can too much cholesterol in your diet be harmful? Q: What is cholesterol? Cholesterol is a waxy substance found in your body and certain foods. It plays a vital role in the production of hormones, vitamin D, and digestive substances. However, high levels of cholesterol can lead to various health issues. Learn more Q: How does cholesterol impact heart health? When excessive amounts of cholesterol accumulate in your bloodstream, it can build up in the walls of your arteries, forming plaque. This can narrow your arteries, reducing blood flow to the heart and increasing the risk of heart disease,…