A Registered Holistic Nutritionist (RHN) is a professional trained by the Canadian School of Natural Nutrition (CSNN) to educate individuals and groups about the benefits of nutrition.

After a 1 to 2 year program at CSNN, students are required to complete 50 practicum hours and pass a board exam, which is the same across Canada.

This designation is not regulated by a governing body and RHNs are not regulated healthcare practitioners in Canada like registered dietitians are.