American Dietetics's license in Brazil is okay?

I have a bachelor's degree in dietetics and I'm going for my dietetics's license, from the American Dietetics ociation (ADA). I want to go to Brazil once I get my license and practice being a nutritionist there. Would the license transfer over there or do I have to re-do my license there? Eventually I want to become a Brazilian citizen as well as keeping my American citizenship. (I don't know if this would have any effect on my dietetics's license.)