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Energy Support500 mg Per CapsuleHerbal SupplementTraditional Herb to Fight FatiguePromotes Energy ProductionFull Spectrum® Whole Seed FormulaScience-Backed Quality Since 1969A Brazilian herb Guarana has been used for centuries by the indigenous people of the Amazon region to fight fatigue and boost energy. Today Swanson Guarana is still used to promote energy while also serving as an effective and economical source to help you meet your weight -control goals. Each convenient capsule delivers 500 mg of guarana seed powder.