Vitamin D3

(Cholecalciferol)

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3.6/ 5 average rating with 1142 reviewsforVitamin D3

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Raises Vitamin D levels.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

Vitamin D3 (Cholecalciferol) works well for vitamin D deficiencies and is available over the counter. It absorbs better than vitamin D2, but it's animal-based so vegetarians and vegans might not want to take it.

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Quick facts about Vitamin D3

Drug class: Musculoskeletal
Rx status: Prescription or OTC
Generic status: Lower-cost generic available (cholecalciferol)

Upsides

Available in generic and over the counter.
Available in oral solution, tablet, and capsules.
You can take it as a once-a-day or once-a-week medication.
This version of vitamin D is better absorbed by the body than vitamin D2.

Downsides

This is an animal-based version of vitamin D, so vegetarians and vegans may not be comfortable with taking this supplement.

How it works

Vitamin D3 (Cholecalciferol) is a form of Vitamin D. It raises Vitamin D levels in your blood. This in turn raises calcium levels in your blood by helping you absorb more calcium from food in your intestine.

Quick facts about Vitamin D3

Drug class: Musculoskeletal
Rx status: Prescription or OTC
Generic status: Lower-cost generic available (cholecalciferol)

Used for

Dosage forms

Pill

Raises Vitamin D levels.

Vitamin D3 (Cholecalciferol) works well for vitamin D deficiencies and is available over the counter. It absorbs better than vitamin D2, but it's animal-based so vegetarians and vegans might not want to take it.

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Side effect rates for Vitamin D3 (Cholecalciferol)

Risks and Warnings for Vitamin D3 (Cholecalciferol)

Common concerns from people taking Vitamin D3 (Cholecalciferol)