Yes, Registered Dietitians (RDs or RDNs) are different than nutritionists. RDs have completed degrees in nutrition, including classes in biochemistry, biology, organic chemistry, anatomy, physiology, culinary science, nutrition counseling, and more. Registered Dietitians must receive national and state licensure through board exams, complete over 1,000 hours of clinical training in a dietetic internship, and maintain ongoing continuing education. Conversely, the terms “nutritionist” or “health coach” are not regulated or standardized—anyone can call themselves a nutritionist without undergoing certifications, designated coursework, and passing exams. While this doesn’t necessarily mean that nutritionists and health coaches are not knowledgeable about nutrition, these professions do not undergo the same rigorous and qualifying standards for education, clinical training, or licensure as RDs.