SPECIMEN #MEMBERS-
Verified
VitaminsMember's Mark
Vitamin D3 5000 IU
5000 IU vitamin D for the 42% of Americans who are deficient. 400 softgels, over a year supply. Get a blood test to confirm you need this dose. Once levels normalize, Kirkland 2000 IU is fine for maintenance.
9.0/10
EXCEPTIONALVitamin D3 at 5000 IU (125mcg) as cholecalciferol. This exceeds the optimal 4000 IU dose and is at a therapeutic level for correcting deficiency. D3 is the correct form. At Sam's Club bulk pricing, this is one of the best values in supplement vitamin D. Simple, single-ingredient, properly dosed.
1 ingredientSoftgels400 servings
Evidence
7.0
Dosing
10.0
SynergyN/A (single ingredient)
What We Like
- 5000 IU for deficiency correction.
- 400 softgels (over 1 year supply).
- USP Verified.
- Sam's Club bulk value.
Watch Out For
- 5000 IU may be excessive for maintenance (2000 IU sufficient for most).
- No K2.
- Should test D levels periodically at this dose.
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 at clinical doses
Source: Official product page
Ingredient Breakdown
1 clinical
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
In our database (click to learn more) Not yet reviewed
Our Analysis
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