Jobs that pay a lot with a Nutrition degree?!

Ok so I am very interested in Nutrition. Im thinking about picking that as a major and maybe become a dietitian? Sounds like something I would really enjoy. The only thing I dislike is the pay. Dietitians don't make much money and I want to be able to make a lot. Is there anything else I can do in Nutrition that makes good money? Is it possible to do something on the side and make more money as a dietitian? please help. thank you.