Leeks look like onions and garlic , but not pungent taste , on the contrary , it’s sweet. He was known 5,000 years ago by Celtic peoples who ascribe magical properties . Romanian Medicine discovered that she vegetables and medicinal virtues to recommend it content rich in minerals (sodium, potassium, calcium , manganese , sulfur , silicon, phosphorus, iron ) , vitamins A, B1 , B2 and C , and cellulose , volatile oil , protein and carbohydrates . 87-90 % by weight of leeks is water, which gives strong diuretic properties . It is very low in fat and is recommended in diets . Energy value is 22 calories per 100 grams of vegetable. Leek is a recognized nervous system tonic , laxative , digestive tract soothing , emollient , expectorant , adjuvant in atherosclerosis, antiseptic. Stimulates bile and stomach function , cleans arteries of cholesterol and helps destroy pathogens even cancer.