
Description
"Sterols" are naturally occurring lipids found in both plant and animal sources. In plants, they are known as phytosterols, including stigmasterol, campesterol, and sitosterol, while cholesterol serves as the primary sterol in animals. Structurally similar yet functionally distinct, these substances influence lipid metabolism and cholesterol balance. Phytosterols modulate cholesterol absorption, supporting cardiovascular function. Sterols are present in many foods and contribute to plant-based nutrition and food science.
Functions in the Body
Category
Deficiency Symptoms
Sterols are not classified as essential nutrients, so there are no deficiency symptoms directly associated with them.
Synergists & Antagonists
Sterols work synergistically with sterolins, omega-3 fatty acids, and soluble fiber to support cholesterol management by reducing LDL absorption and enhancing overall lipid balance. No well-documented antagonistic interactions exist.

Sterols
Warnings
Sterols should be used with caution during pregnancy and breastfeeding. Individuals with sitosterolemia (a genetic condition causing high plant sterol levels) or short bowel syndrome should consult a healthcare provider before use.
Food Sources
Sterols are naturally found in grains, seeds, nuts, vegetable oils, and legumes.
Time Frame
Sterols can be consumed at any time.
Depleted By
There are no specific factors that deplete sterols from the body.