Cholesterol
In short
A waxy, fat-like substance found in all animal cells that helps build cell membranes and produce hormones.
In plain words
Your body needs it to keep cells healthy and make important chemicals. However, having too much in your blood can lead to health problems like heart disease.
A simple example
When you eat foods high in saturated fats, such as butter or fatty meats, your body may produce more cholesterol than it needs.
Why it matters
It is vital for brain function and hormone production. Balancing the different types is key to preventing blocked arteries.
Easy to mix up
Do not confuse it with triglycerides, which are a different type of fat used for energy.