I've seen some different posts from people saying they are a "Homeopath" or a "Naturopath". What is the difference? Are there other types of alternative or complementary medicine practitioners who have other titles that I don't even know about?

And, most importantly, what kind of training and experience do these professions need to have? (for example, I know "anyone" can call themselves a "Nutritionist", but there are very well-defined criteria, experience, training, licenses, credentials, etc. to be a "Registered Dietitian"). Is this the same for Homeopaths and Naturopaths? Is there a national, professional organization that oversees these providers?

Thanks!!