Design a Logo

Company Name : Fitness Fanatics Basically its Dietary Supplements Business and the owner is a personal fitness trainer, Would like to design a logo that targets people in the fitness industry who's interested in purchasing Dietary supplements mainly protein supplements. But would also what to keep in mind promoting the personal fitness trainer. I would like a logo that looks clean an professional with nice catchy colour and design. I don't have a colour in mind so please advise me.