NOW Foods - NOW Foods Vitamin D3

Suppie Report

NOW Foods

NOW Foods Vitamin D3

B grade
84/100
SUPPIE SCORE
95/100
EFFICACY
Medium
SAFETY
98/100
CLEANLINESS

What Does NOW Foods Vitamin D3 Do?

Excellent high-dose Vitamin D3 for correcting deficiencies; strong RCT evidence for bone/immunity benefits. Medium safety due to overdose risks—monitor levels.
Is 10,000 IU of Vitamin D3 safe for daily use?
How does this help with vitamin D deficiency?
Can I take this with my current medications?
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What Are the Benefits of NOW Foods Vitamin D3?

Based on proven scientific research

Bone HealthVery strong
Calcium AbsorptionVery strong
Immune FunctionStrong
Muscle FunctionModerate

Good For:

What Are the Side Effects of NOW Foods NOW Foods Vitamin D3?

Always consult your health practitioner if in doubt.

RiskMedium Risk

Overview

•- High dose (10,000 IU); safe short-term for deficiency but monitor blood levels
•- Potential hypercalcemia risk with excessive/prolonged use
•- Not for vegans (lanolin, gelatin sourced)
•- Avoid in hyperparathyroidism, kidney disease without doctor advice
•- Safe in pregnancy at recommended doses; high dose consult physician
•- Rare allergies to lanolin or gelatin possible

Potential Side Effects

Negative Interactions

Allergens

GelatinLanolin

Inactive Ingredients

Softgel capsule (gelatin, glycerin, water)
Low Risk
Lanolin
Low Risk
Organic extra virgin olive oil
Good

What Are the Ingredients in NOW Foods NOW Foods Vitamin D3?

Vitamin D3 (Cholecalciferol)
10,000 IU (250 mcg)
Softgel capsule (Gelatin, Glycerin, Water)
Lanolin
Organic Extra Virgin Olive Oil

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Dosage & Bioavailability

How the active doses and forms in NOW Foods Vitamin D3 compare to the research.

•Vitamin D3 (Cholecalciferol) — 250 mcg per serving is over the 100 mcg/day upper limit (IOM (NIH ODS)). Taking more than this every day over time can raise calcium in the blood and urine (hypercalcaemia, hypercalciuria) and the risk of kidney stones.
•Vitamin D3 (Cholecalciferol) — vitamin d3 cholecalciferol is among the preferred forms of vitamin d in Suppie's ingredient library.

Frequently Asked Questions

Common questions about NOW Foods NOW Foods Vitamin D3