Most gym owners are cautious about what products they endorse, and what to sell to their members. We’re in the business of helping clients through health and fitness; we’re not in the snake oil business trying to sell products that don’t work just so we can make a buck. So when it comes to deciding if and what you should sell at your gym, I believe the questions you should ask yourself are these: 1. Will it help the client? 2. Will it help the coach? 3. Will it help the business owner? If the answer is yes to all three of the above, there’s a good chance it’s something you should consider stocking. Here are our top 4:...