Sterols are a class of naturally occurring compounds found in plants, animals, and fungi. They are a type of lipid,
structurally similar to cholesterol, and play essential roles in various biological processes.
The most well-known sterol is cholesterol, which is primarily found in animal tissues, but there are several other sterols
with important functions as well.
Plant sterols, also known as phytosterols, are commonly found in the cell membranes of plants. The two main types of plant sterols
are sitosterol, campesterol, and stigmasterol. These sterols have a similar structure to cholesterol but with slight variations.
Plant sterols are naturally present in various plant-based foods such as fruits, vegetables, nuts, seeds, and oils.
Sterols, both animal and plant-derived, have important physiological functions in the body.