NOW Foods
Vitamin D3
91/100
SUPPIE SCORE
92/100
EFFICACY
High
SAFETY
92/100
CLEANLINESS
What Does Vitamin D3 Do?
Vitamin D3 (as cholecalciferol from lanolin) provides 25 mcg a day, within the studied range of 15-100 mcg/day.
Should I take this Vitamin D3 softgel with a meal containing fat?
How does cholecalciferol compare to vitamin D2 for raising blood levels?
Do I need to monitor my blood levels of 25-hydroxyvitamin D while taking this?
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What Are the Benefits of Vitamin D3?
Based on proven scientific research
Bone Mineral DensityVery strong
Immune FunctionStrong
Calcium AbsorptionVery strong
Muscle FunctionModerate
Good For:
What Are the Side Effects of NOW Foods Vitamin D3?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•Cholecalciferol is generally well tolerated with a high margin of safety at standard daily supplemental doses.
•Individuals with hypercalcemia, hypervitaminosis D, or severe renal impairment should avoid supplementation without medical supervision.
•Concurrent use with thiazide diuretics or cardiac glycosides (digoxin) warrants monitoring due to increased risks of hypercalcemia and altered drug sensitivity.
•Pregnant or nursing individuals should confirm total daily vitamin D intake across all supplements with their healthcare provider.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Extra virgin olive oil
GoodBovine gelatin (bse-free)
Low RiskGlycerin
Low RiskWater
Low RiskSafflower oil
Low RiskWhat Are the Ingredients in NOW Foods Vitamin D3?
Vitamin D3 (as cholecalciferol from lanolin)
25 mcg (1,000 IU)
Extra Virgin Olive Oil
Bovine gelatin (BSE-free)
Glycerin
Water
Safflower Oil
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Dosage & Bioavailability
How the active doses and forms in Vitamin D3 compare to the research.
•Vitamin D3 (as cholecalciferol from lanolin) — 25 mcg a day; within the 15-100 mcg/day studied range.
•Vitamin D3 (as cholecalciferol from lanolin) — cholecalciferol is among the preferred forms of vitamin D.
Frequently Asked Questions
Common questions about NOW Foods Vitamin D3