* Low Calorie * 10 Calories 0g Sugars * Fuel by Quercetin * Dietary Supplement What Fuels You Want to discover what elite athletes, pro sports teams & wellness gurus already love? It all began with health scientist trying to provide sustained energy for chemotherapy patients. FRS Healthy Energy is amazingly delicious performance products, powered by a patented formula containing Quercetin, green tea catechins and essential vitamins. Quercetin is a powerful all natural antioxidant found foods like blueberries, apples and grapes that works by naturally triggering your cells" ability to produce sustained energy... So you can focus on increasing your stamina to maximize performance. Try FRS products for a week and feel the difference for yourself. Enjoy! Comparison of Flavonoid Antioxidants per serving: FRS Healthy Energy 300 mg Blueberries 120 mg Apples 20 mg Source: Flavonoid content of fruit from USDA Flavonoid Database using 1/2 cup serving & 140g weight for apples. Flavonoid composition varies among products compared.