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ThorneVitamin D-5,000

High-potency vitamin D3 from a practitioner brand.

Vitamin D3: 5,000 IU
Form: Capsule
Dose: 1 / day

Per serving, from the label. Formulas can change — always check the package.

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Why it's on our list

Thorne is known for clean formulas and rigorous quality control. Its D-5,000 is a simple, high-potency vitamin D3 capsule — popular with people whose doctor has recommended a higher dose.