What is the term for the fatty substance found in blood and food known as a lipid?

The term that describes the fatty substance found in blood and food, which falls under the category of lipids, is cholesterol. Cholesterol is a type of lipid molecule that is essential for various bodily functions, including the formation of cell membranes, the production of hormones, and the synthesis of vitamin D. It's important to understand that while cholesterol is indeed a lipid, it plays a distinct role compared to other types of lipids such as triglycerides, phospholipids, and fatty acids.

Triglycerides are the most common form of fat found in the body and serve as a significant energy source. Phospholipids are crucial for building cell membranes, helping to maintain their structure and integrity. Fatty acids are the building blocks of lipids and are involved in energy storage and cellular functions. Each of these types of lipids has its own unique function and significance, but cholesterol specifically refers to a particular lipid with vital roles in body processes and health outcomes.