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Ingredient

Vitamin D3 (Cholecalciferol)

Strong

A fat-soluble vitamin with widespread low intake in northern climates.

How it works

Acts via the vitamin D receptor on calcium homeostasis, bone health, and immune cell signalling.

Evidence

Large body of pharmacopoeia-grade evidence for vitamin D adequacy and skeletal health.

Studies

Bouillon et al., Endocr Rev, 2019
Reviews vitamin D physiology and supplementation outcomes.
PubMed 30321335 ↗

Top products

Sorted by effective monthly cost

Now Foods Vitamin D3 2000 mg

Now Foods

Per serving: 2000 mg
Studied midpointStudied range midpoint is used. Pricing assumes label-recommended servings.See methodology: 2500 mg · 2/day

Buy at Amazon.ca

Nature Made Vitamin D3 2000 mg

Nature Made

Per serving: 2000 mg
Studied midpointStudied range midpoint is used. Pricing assumes label-recommended servings.See methodology: 2500 mg · 2/day

Buy at Amazon.ca

Thorne Vitamin D3 1000 mg

Thorne

Per serving: 1000 mg
Studied midpointStudied range midpoint is used. Pricing assumes label-recommended servings.See methodology: 2500 mg · 3/day

Buy at Amazon.ca

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