Compare vitamin D labels: D2, D3, units and serving size
Vitamin D labels may combine an IU figure, a microgram figure and a product form such as a capsule or drop. Keep these declarations together when comparing products.
What to compare on the label
Read the original declaration for D2 or D3. Our comparison preserves the form alongside the nutrient name.
Do not apply a generic IU-to-mass conversion across vitamins. This site preserves IU declarations instead of silently converting them.
Check whether the serving is one drop, a dropper, one softgel or several units. Also inspect combined vitamin D and K products for their additional ingredient declarations.
Explore 75 recorded vitamin d products
These are source observations, not a ranking, current-stock feed or independent contents test. Product cards retain the original name and observation date on their detail pages.
NOW Foods
Vitamin D3 & K2
120 count
California Gold Nutrition
Vitamin D3 + K2 as MK-7
180 count
California Gold Nutrition
Vitamin D3, 125 mcg (5,000 IU)
90 count
California Gold Nutrition
Vitamin D3 + K2 as MK-7
60 count
NOW Foods
Vitamin D-3, High Potency
240 count
California Gold Nutrition
Vitamin D3, 50 mcg (2,000 IU)
90 count
Keep uncertainty visible
A missing amount means it is not disclosed in this captured record, not that the ingredient amount is zero. Do not add parent blend totals to their nested components. Check the current source label for warnings, other ingredients and directions before making a purchase.
Source and editorial notes
For independent background on the ingredient, read the NIH Office of Dietary Supplements fact sheet. NIH does not endorse this site or the products listed here. Our comparison examples describe label interpretation, not product efficacy.
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