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Energy and Metabolism1 000 mcg Per TabletVitamin SupplementSupports Energy MetabolismEssential for a Healthy Nervous SystemVital for Red Blood Cell FormationScience-Backed Quality Since 1969Swanson Triple Action B12 is a revolutionary way to take vitamin B12—a way to increase absorption and improve your supplementation program. The fact is that traditional B12 supplements often pass through your body without being absorbed. Our formula is specially formulated to release over an extended period.