Basic knowledge of public dietitians, National Professional Qualification Level 4, National Professional Qualification Level 3, National Professional Qualification Level 2, National Professional Qualification Level 1, while studying, the basic knowledge of books remains unchanged, and you will learn the same level of skills and knowledge! Generally speaking, you need to start learning from Level 4 (Intermediate). If you are majoring in related majors in university, you can study one of medicine, pharmacy, nursing, nutrition and food science directly from the third level (advanced). Grade two and grade one belong to the technician level.