The royal jelly is the food of the queen bee and has a high nutritive value: it contains proteins, most of which in the form of amino-acids, carbohydrates, a small percentage of lipids, phospholipids, vitamins of the B group, vitamins A, E, D and C, trace elements and an anti-bacterial element. It is an excellent tonic and invigorating, it facilitates learning and memory and helps to overcome fatigue.