vitamin

Vitamin D supplements

Half of the 14,175 vitamin D supplements in the NIH label database that print an amount list 15 mcg (600 IU) or less per serving; the middle half list 10 mcg to 25 mcg, and 1 in 12 of the 14,002 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 1,492 products whose only supplement ingredient is vitamin D list a median of 50 mcg (2,000 IU), and 35% of them give more than the upper limit.

How much vitamin D do supplements contain?

The median product lists 15 mcg (600 IU) per serving. One in ten lists 3.75 mcg or less, one in ten 62.5 mcg or more. The amount printed most often is 10 mcg (400 IU) (3,167 products).

How do the amounts compare with the Daily Value and the upper limit?

The FDA Daily Value for vitamin D is 20 mcg (800 IU) (adults and children 4 and older). The median product gives 75% of it per serving; the 90th percentile 313%.

The adult Tolerable Upper Intake Level is 100 mcg (4,000 IU) a day (total intake from food, water and supplements). At the most servings their labels direct, 1,121 of the 14,002 products with a plausible amount (8.0%) give more than that from the supplement alone (what counts as plausible).

The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.

Which forms of vitamin D do labels name?

Vitamin D3 (cholecalciferol) is the form named most often: 10,698 of the 15,307 vitamin D products (70%), ahead of vitamin D2 (ergocalciferol) (714, 5%). A product naming two forms counts in both; the table below gives every form.

• Vitamin D3 (cholecalciferol)
• Vitamin D2 (ergocalciferol)

Which products list the most vitamin D?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• Vitamin D (Ergocalciferol Capsules, USP) 1.25 mg (50,000 USP Units)Paddock Laboratories1,250 mcg (50,000 IU)
• Vitamin D-3 50,000 IUNusaPure1,250 mcg (50,000 IU)
• Vitamin D3 50,000 IUForestLeaf1,250 mcg (50,000 IU)
• Vitamin D3 50,000 IUAdvanced Nutrition by Zahler1,250 mcg (50,000 IU)
• Vita-Desic 50,000 IU Vitamin D3Blaine Labs1,250 mcg (50,000 IU)
• Decalcitrol Tablets 50000 IUPharmin1,250 mcg (50,000 IU)
• Decara High Potency Vitamin D3 50,000 IUMedecor Pharma1,250 mcg (50,000 IU)
• Vitamin D3 50,000 IUZIKS Nnodum Pharmaceuticals1,250 mcg (50,000 IU)

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 10 mcg; those entered in 2025, 25 mcg.

In which products and brands?

Brands listing it most: Nature's Way (266), Douglas Laboratories (254), Nature's Plus (191), Carlson (150), Country Life (116), Nature Made (114), Puritan's Pride (109), NOW (106), Nature's Bounty (105), The Vitamin Shoppe (102).

Every product listing vitamin D

15,307 products, A to Z by name (page 34 of 307), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Cal Mag K-DMaxi Health50 mcg (2,000 IU)
• Cal Mag Raspberry LiquidGenestra Brands · off the market25 mcg (1,000 IU)
• Cal Mag Raspberry Liquid Natural Raspberry FlavorGenestra Brands25 mcg (1,000 IU)
• Cal Mag Vanilla Liquid +Genestra Brands · off the market25 mcg (1,000 IU)
• Cal Mag Vanilla Liquid + Natural Vanilla FlavorGenestra Brands25 mcg (1,000 IU)
• Cal Mag Zinc +D21st Century · off the market10 mcg (400 IU)
• Cal Mag Zinc +D321st Century · off the market10 mcg (400 IU)
• Cal Mag+D3Priority One Nutritional Supplements15 mcg (600 IU)
• Cal MatrixMetagenics3.35 mcg (134 IU)
• Cal-1,000 with Vitamin DCarlson · off the market30 mcg (1,200 IU)
• Cal-1000Carlson30 mcg (1,200 IU)
• Cal-6+Mg.Douglas Laboratories10 mcg (400 IU)
• Cal-6+Mg.TabletsPureFormulas · off the market10 mcg (400 IU)
• Cal-6-ForteDouglas Laboratories10 mcg (400 IU)
• Cal-Assimilate PlusKlaire Labs · off the market5 mcg (200 IU)
• Cal-D PlusNature's Bounty10 mcg (400 IU)
• Cal-D-MaxMaxi Health10 mcg (400 IU)
• Cal-Day 1000Windmill10 mcg (400 IU)
• Cal-K-Yums! Natural Strawberry FlavorKiddieMax25 mcg (1,000 IU)
• Cal-MAnabolic Laboratories10 mcg (400 IU)
• Cal-M-DMaxi Health25 mcg (1,000 IU)
• Cal-MagOL Olympian Labs10 mcg (400 IU)
• Cal-MagNatura3.25 mcg (130 IU)
• Cal-MagFairhaven Health PeaPod0.6 mcg (24 IU)
• Cal-Mag & Vitamin DDouglas Cooper Co.15 mcg (600 IU)
• Cal-Mag (Tropical Vanilla Punch)Priority One Nutritional Supplements · off the market50 mcg (2,000 IU)
• Cal-Mag +Vitamin D Delicious Berries & Cream FlavorNuLife Advanced Bariatrics25 mcg (1,000 IU)
• Cal-Mag 1000 IU Vitamin D3NeoLife Nutritionals · off the market25 mcg (1,000 IU)
• Cal-Mag 1:1 With Vitamin D3VitaCeutical Labs5 mcg (200 IU)
• Cal-Mag 1:1 With Vitamin D3Vitamer Laboratories5 mcg (200 IU)
• Cal-Mag 1:1 with Vitamin D3Natural Healthy Concepts · off the market5 mcg (200 IU)
• Cal-Mag 1:1 with Vitamin D3NHC Natural Healthy Concepts5 mcg (200 IU)
• Cal-Mag 2000Professional Botanicals5 mcg (200 IU)
• Cal-Mag 2:1 / With DWebber Naturals · off the market2.5 mcg (100 IU)
• Cal-Mag 2:1 PlusAdaptogen Research2.5 mcg (100 IU)
• Cal-Mag 2:1 Plus DKlaire Labs · off the market2.5 mcg (100 IU)
• Cal-Mag 400 IU Vitamin D3NeoLife Nutritionals · off the market10 mcg (400 IU)
• Cal-Mag Bone Health +Harmonia5 mcg (200 IU)
• Cal-Mag CapsNOW25 mcg (1,000 IU)
• Cal-Mag Caps With Trace Minerals And Vitamin DNOW · off the market5 mcg (200 IU)
• Cal-Mag CitrateBIOVEA10 mcg (400 IU)
• Cal-Mag Citrate 2:1 RatioSolaray25 mcg (1,000 IU)
• Cal-Mag Citrate Chewable Natural Orange FlavorSolaray · off the market25 mcg (1,000 IU)
• Cal-Mag Citrate Chewables 2:1 Ratio Natural Orange FlavorSolaray25 mcg (1,000 IU)
• Cal-Mag Citrate ComplexVillage Vitality10 mcg (400 IU)
• Cal-Mag Citrate ComplexNatural Nutra10 mcg (400 IU)
• Cal-Mag Citrate Complex With Vitamin D3Vitamer Laboratories10 mcg (400 IU)
• Cal-Mag Citrate Complex with Vitamin D3Village Vitality · off the market10 mcg (400 IU)
• Cal-Mag Citrate Complex with Vitamin D3Woodstock Vitamins10 mcg (400 IU)
• Cal-Mag Citrate plus D-3 & K-2Solaray · off the market25 mcg (1,000 IU)

Where next?

• Liquid vitamin D
• Vegan vitamin D
• Vitamin D capsules
• Vitamin D drops
• Vitamin D for women
• Vitamin D gummies
• Check an amount of vitamin D
• Labels above the upper limit
• All ingredients