Abstract
Plants and animals are potential sources of food, particularly lipids. They are sources of nutrients for humans, and are used in various applications in food industries. Foods whose lipids consumed, have benefits for animal and human health. Sterols are among the compounds essential to the well-being of living beings. Phytosterols are derived from plants and algae, and zoosterols from animals dominated by cholesterol. Cholesterol is found in small quantities in some plant lipids. Also, cholesterol is produced by herbivorous insects by metabolizing phytosterols. Oilseeds and vegetable oils contain sterols and are the richest natural sources of phytosterols. Vegetables and fruit also contain small quantities. These compounds play an undeniable role in our diet. Foods, particularly vegetable oils, when produced, preserved and used according to established prescriptions, help to ensure consumer health and prevent certain pathologies. Sterols, and in particular phytosterols, play a number of roles in the pharmaceutical field (therapeutic steroids), nutrition (anti-cholesterol, anti-cancer properties). These natural molecules with their nutritional and therapeutic properties have a positive impact on human and animal health, and possibly on vegetative growth (development cycle of plants). The same is true for cholesterol, which has multiple functions in humans and animals. Also, a diet based on plants or their by-products with positive effects on human and animal health is closely in line with the objectives of the 'One health approach'. Indeed, sterols can have adverse effects on health when established standards are not respected. As a result, the health benefits of sterols (cholesterol and phytosterols) require particular attention, given their contribution to the public health problems facing our countries. The aim of the present research is to highlight the health benefits of cholesterol and phytosterols for living organisms, particularly humans, and their contribution to the One Health approach.