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Vitamin D3Bone and Immune Health5 000 IU Per SoftgelDietary SupplementMaintains Bone and Dental HealthIncreases Calcium Absorption and BalanceSupports Healthy Immune ActivityScience-Backed Quality Since 1969Get a daily supply of "the sunshine vitamin" rain or shine with Swanson Ultra High Potency Vitamin D3. With 5 000 IU per softgel it's our most potent vitamin D supplement ideal for people with limited sun exposure or anyone with increased vitamin D requirements. For optimal effectiveness each softgel also includes 1 000 mg of coconut oil—a great source of medium-chain triglycerides—for enhanced absorption.