Titles such as "Registered Dietitian", "Professional Dietitian", and "Dietitian" are protected by law.  This means that the individual has met specific educational requirements and undergone nationally recognized training.  A Dietitian has a Bachelor's degree specializing in food and nutrition and has undergone a practicum placement.  While only qualified individuals can use the title Dietitian, anyone can call himself or herself a Nutritionist.  Be careful when taking dietary advice from anyone.  You should be sure to look at his or her credentials and you can always contact Dietitians of Canada to find a Dietitian in your area.
Steph Wheler
www.nutrishus.com