SPECIMEN #KIRKLAND
Verified
VitaminsKirkland Signature
Vitamin D3 2000 IU
600 softgels for under $10. Nearly 2 years of vitamin D3 at the ideal maintenance dose. USP Verified. Costs less than a Costco hot dog combo. The best supplement value in America. Just add K2 separately.
7.8/10
VERY GOOD600 softgels for under $10 at Costco. That's nearly 2 years of vitamin D3 at the right dose. USP Verified. The best value vitamin D supplement in America.
1 ingredientSoftgels600 servings
We'd recommend thisEvidence
7.0
Dosing
7.0
SynergyN/A (single ingredient)
Whenmorning
Foodwith food
SafetyAll clear
ResearchStrong evidence
What We Like
- 600 softgels (20 months supply).
- Under $10 at Costco.
- USP Verified.
- 2000 IU is the maintenance sweet spot.
Watch Out For
- No K2 included.
- Soybean oil carrier.
What We Analyzed
Verified Supplement Facts
Every dose checked against clinical research
We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.
1 ingredients analyzed1 underdosed
Source: Official product page
Ingredient Breakdown
1 underdosed
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
In our database (click to learn more) Not yet reviewed
Our Analysis
Best For
Costco members. Everyone.
Skip This If
Hypercalcemia.
Time to Feel
2-4 weeks.
Value
EXCELLENT
How to take: Year-round.
Personalized Deep Analysis
See exactly how this fits your health profile. What works for you, what doesn't, and whether you're getting your money's worth.
Unlock with ProTaking other supplements too?
Check your full stack for interactions, redundancies, and gaps. Takes 30 seconds.
0 views