In a nutritional supplement sales role, you act as a representative for a retail nutrition store and explain to customers the various products you sell. In this role, you may manage an account to keep track of each customer's purchases, receive a commission on sales, and otherwise promote the use of dietary supplements and vitamins for people looking to improve their health. However, it is important to remember that this is a sales job and not a medical or nutrition job—sales associates cannot normally make claims about the health benefits of products, so navigating the legal restrictions on this job is essential to success.