An image is everything. After all, the reason people probably turn to fitness professionals in the first place is to improve their image. As the professional, you should be maintaining and improving your image as well, and presenting yourself in a professional manner. 

Being a personal trainer, life coach, nutritionist, or bodybuilding posing coach means that you run a small business.  Running your own small business means that you wear many hats. Besides being the fitness specialist, you also wear hats for accounting, marketing, billing, and scheduling.  In order to continue to grow your business, you will need to do marketing.  For most in the fitness industry, your own body is your number one asset and the calling card that you have with you all the time.  Everywhere you go, there are opportunities for people to see you and say, “Wow! You look great I wish I could look that good!” You have the chance to sell yourself.