To thrive as a supplement store employee, you need strong knowledge of nutrition products, customer service experience, inventory management, and basic retail operations. Familiarity with point-of-sale (POS) systems, stock tracking software, and, in some cases, certifications in nutrition or fitness are valuable assets. Excellent communication, active listening, and the ability to educate customers make someone stand out in this role. These skills are important because they help deliver accurate information, support customer wellness goals, and ensure smooth day-to-day store operations.