a) The prescription is designed up based on the guidelines for health care diagnosis and treatment method of relevant specialty;Th?c ph?m ch?c n?ng là nh?ng thành ph?n mang l?i l?i ích s?c kh?e v??t ra ngoài giá tr? dinh d??ng c?a chúng. M?t s? lo?i có ch?a ch?t b? sung ho?c các thành ph?n b? sung khác ???c thi?t k? ?? c?i thi?n s?c kh?e.