The vegetables are a key component of a healthy diet. This category includes cereal products, vegetables, legumes, and fruit. About three-quarters of the food are eaten each day should belong to this group. The consumption of vegetables brings our body carbohydrates, fiber, vitamins, and minerals. Like fruit, vegetables are also rich in components of high nutritional value like vitamins, minerals, trace elements and fiber. Various scientific studies have shown the beneficial effect on the health of vegetables and their preventive properties against cardiovascular diseases. This good effect is due, among other things, to vitamin C, folic acid, and fiber, but mainly to so-called secondary metabolites of plants (substances synthesized exclusively by plants). The secondary metabolites of plants, vitamins, etc. Are presented in a variable combination and quantity depending on the type of vegetable. It is, therefore, important to consume different kinds of vegetables to follow a healthy diet. Some types also have a high protein content.