A dietitian is a professional that specializes in food and nutrition and is the most credentialed and qualified in this area. 

Where do they work? A variety of settings including: Hospitals, long term care facilities, kitchens, food and beverage companies, online, private practices, research, government, grocery stores and community programs like WIC and SNAP. Where there is food, there are dietitians!

Find out more about their qualifications and their national academy: Academy of Nutrition and Dietetics