Supplement Authority is now OPEN! Supplement Authority is the leader in sports nutrition sales and information! Supplement Authority is an authorized dealer of Bioformx Nutrition. The product categories include: Essentials, Thermogenics, Proteins, Pre-Workout, Post-Workout, Muscle Builders, and Gainers. Supplement Authority offers dietary supplements and nutrition with information and consultation. Specialized supplements for workouts like pre-workout, post-workout, proteins, amino acids, creatines, muscle builders and testosterone boosters, weight loss and fat burners. The staff is certified as Fitness and Sports Nutrition Specialists (F.S.N.S.), extensive knowledge and experience in the supplement industry, and Kinesiology backgrounds.