“…Royal jelly is a substance secreted by the hypopharyngeal and mandibular glands of worker honeybees [ 1 , 3 ]. On average, royal jelly contains about 60% water, 12% sugar, 12% protein, 6% lipids, and 5% organic acids, sex hormones, minerals, and vitamins (C, D, E, B), which makes it a valuable bioactive product [ 3 , 12 , 13 , 14 ]. The antioxidant potential of royal jelly is attributed to its polyphenols content, mainly flavonoids [ 4 , 9 , 15 , 16 , 17 , 18 , 19 , 20 ].…”