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Energy and MetabolismComprehensive FormulaVitamin SupplementPromotes Nervous System Immune and Cardiovascular HealthSupports Neurotransmitter Production for a Positive MoodScience-Backed Quality Since 1969The B vitamins play important roles throughout the body from cardiovascular and mental health to energy metabolism. Swanson Balance B-50 delivers high potencies of the entire B-vitamin complex to ensure optimum nutritional performance.