Kirkland Signature
Vitamin D3
93/100
SUPPIE SCORE
95/100
EFFICACY
High
SAFETY
94/100
CLEANLINESS
What Does Vitamin D3 Do?
Kirkland Signature Vitamin D3 offers a solid 2000 IU dose aligning with research for bone and immune support, USP-verified for quality. Highly effective and safe for daily use with minimal risks.
What is the recommended daily dosage for this Vitamin D3 supplement?
How does Vitamin D3 support bone health according to research?
Are there any dietary sources that can complement this supplement?
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What Are the Benefits of Vitamin D3?
Based on proven scientific research
Bone HealthVery strong
Immune SupportStrong
Cell DevelopmentModerate
Good For:
What Are the Side Effects of Kirkland Signature Vitamin D3?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•Vitamin D3 at 2000 IU is well within safe upper limits of 4000 IU daily for adults, supporting bone and immune health without overdose risk.
•Minimal side effects expected; rare hypercalcemia possible only at much higher doses exceeding 10,000 IU daily.
•No significant drug interactions in this formulation, but may enhance calcium absorption when taken with calcium supplements.
•Safe for most adults including elderly; consult physician if pregnant, breastfeeding, or with kidney disease.
•USP verification ensures purity and manufacturing quality, reducing contamination risks.
•Soy and gelatin present; avoid if allergic, but low allergenicity overall.
Potential Side Effects
Negative Interactions
Allergens
SoyGelatin
Inactive Ingredients
Soybean oil
Low RiskGelatin
Low RiskGlycerin
Low RiskWhat Are the Ingredients in Kirkland Signature Vitamin D3?
Vitamin D3
2000 IU
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Dosage & Bioavailability
How the active doses and forms in Vitamin D3 compare to the research.
•Vitamin D3 — 50 mcg per serving; within the 15-100 mcg/day used in studies.
•Vitamin D3 — vitamin d3 is among the preferred forms of vitamin d in Suppie's ingredient library.
Sources & References
Frequently Asked Questions
Common questions about Kirkland Signature Vitamin D3