Dietary Supplement. 0 g sugars. 5 calories. Naturally and artificially flavored. Improved dissolving formula. Fueled by Quercetin a powerful antioxidant. The advantage FRS Healthy Energy has over other energy products is simple. FRS is fueled by Quercetin, a powerful antioxidant that activates the body's energy-producing mechanisms - so you can stay at your best longer. Quercetin is found in foods like blueberries, apples and grapes. It works by naturally triggering the body's ability to produce more real energy. The more energy your body creates, the longer you're able to push. And the longer you can push, the farther you'll go from a minor workout to a major marathon. Comparison of flavonoid antioxidants per serving: FRS Healthy Energy: 300 mg, blueberries: 120 mg, raspberries: 40 mg, apples: 20 mg. Source: Flavonoid content of fruits from USDA Flavonoid Database using 1/2 cup serving size and 140 g weight for apples. Flavonoid composition varies among products compared. One packet of FRS contains 35mg of caffeine (equivalent to approx. 1/3 cup of coffee). Caffeine is used as a metabolic enhancer to help the body absorb other key nutrients in the FRS formula. (These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.)