PlainVitamins

vitamin

Vitamin B12 supplements

Half of the 14,425 vitamin B12 supplements in the NIH label database that print an amount list 36 mcg or less per serving; the middle half list 6 mcg to 200 mcg (DSLD version 9.4.0, January 2026). The 654 products whose only supplement ingredient is vitamin B12 list a median of 1,000 mcg.

Products listing it
14,77414,425 print an amount; 336 list it inside a blend without an amount
Median per serving
36 mcgmiddle half 6 mcg to 200 mcg
FDA Daily Value
2.4 mcgthe median is 1500% of it

How much vitamin B12 do supplements contain?

The median product lists 36 mcg per serving. One in ten lists 2.8 mcg or less, one in ten 1,000 mcg or more. The amount printed most often is 6 mcg (1,349 products).

Products by amount of vitamin B12 per serving

14,425 products, log scale; extreme 0.2% at each end left out of the drawing.

Vitamin B12: products by amount per serving1 mcg10 mcg300 mcg10,000 mcgDaily Value 2.4 mcg
Vitamin B12: products by amount per serving1 mcg10 mcg100 mcg3,000 mcgDaily Value 2.4 mcg
Vitamin B12: products by amount per serving1 mcg10 mcg100 mcg1,000 mcg10,000 mcgDaily Value 2.4 mcg
Vitamin B12: products by amount per serving0.3 mcg1 mcg3 mcg10 mcg100 mcg1,000 mcg10,000 mcg100,000 mcgDaily Value 2.4 mcg
Vitamin B12: products by amount per serving0.3 mcg1 mcg3 mcg10 mcg30 mcg100 mcg300 mcg1,000 mcg10,000 mcg100,000 mcgDaily Value 2.4 mcg
The amounts printed most often
Amount per servingProductsFor example
6 mcg1,349 Spiru-Pro Soy Protein Drink With Spirulina Natural Vanilla (Vitamin World); Healthy Energy (FRS); Healthy Energy Pineapple Mango (FRS)
100 mcg1,318 B-12 100 mcg (Vitamin World); Phyto-Estrogen Formula (GNC Women's); B100 Complex (Sundown Naturals)
50 mcg920 Sport (GNC Mega Men); Maximum Nutrition Vanilla Bean (GNC Mega Men); Maximum Nutrition Vanilla Creme (GNC Women's Ultra Mega)
1,000 mcg903 Timed Release B-12 1000 mcg (Vitamin World); 2 Methyl 13-C (Iron-Tek); Animal Rage Slaughter Melon (Animal)
500 mcg775 B-12 500 mcg (Vitamin World); B-Complex (Effective Natural Products); Heart Miracle (Century Systems)
25 mcg651 Beveri Immunity Boost Natural Tangerine Flavor (beveri); Beveri Immunity Boost Natural Tropical Fruit Flavor (beveri); 1,000 mg Vitamin C Lite (Emergen-C)
12 mcg510 Memorall (GNC Preventive Nutrition); Every Woman's One Daily (New Chapter Organics); Daily Essentials (VAXA International)
10 mcg411 SuperPump Max Raspberry Lemonade (Gaspari Nutrition); SuperPump Max Fruit Punch Blast (Gaspari Nutrition); High Potency B & C Complex (Sundown Naturals)
250 mcg405 Pre-Training Formula Tropical Punch (Gamma Labs); Vitamin B12-250 (ProCaps Laboratories); Folic Acid Xtra (Sundown Naturals)
200 mcg366 Anatherm Heat Metabolics Stimulator (NatureSmart); LifeEssence (Pure Essence Labs); Viridex XT (Gaspari Nutrition)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

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

The FDA Daily Value for vitamin B12 is 2.4 mcg (adults and children 4 and older). The median product gives 1500% of it per serving; the 90th percentile 41667%.

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.

Sources: 21 CFR 101.9(c)(8)(iv) (Daily Values); Institute of Medicine, DRI summary tables (2011) (upper limits); on reading them, the FDA's Daily Value page.

Which forms of vitamin B12 do labels name?

Cyanocobalamin is the form named most often: 7,144 of the 14,774 vitamin B12 products (48%), ahead of methylcobalamin (5,005, 34%) and adenosylcobalamin (223, 2%). A product naming two forms counts in both; the table below gives every form.

Products by the form of vitamin B12 on the label

Count, and the median amount per serving in that form.

Vitamin B12 by formCyanocobalamin7,144, median 25 mcgMethylcobalamin5,005, median 100 mcgAdenosylcobalamin223, median 281.5 mcgHydroxocobalamin139, median 400 mcg
Vitamin B12 by formCyanocobalamin7,144, median 25 mcgMethylcobalamin5,005, median 100 mcgAdenosylcobalamin223, median 281.5 mcgHydroxocobalamin139, median 400 mcg
Vitamin B12 by formCyanocobalamin7,144, median 25 mcgMethylcobalamin5,005, median 100 mcgAdenosylcobalamin223, median 281.5 mcgHydroxocobalamin139, median 400 mcg
Vitamin B12 by formCyanocobalamin7,144, median 25 mcgMethylcobalamin5,005, median 100 mcgAdenosylcobalamin223, median 281.5 mcgHydroxocobalamin139, median 400 mcg
Vitamin B12 by formCyanocobalamin7,144, median 25 mcgMethylcobalamin5,005, median 100 mcgAdenosylcobalamin223, median 281.5 mcgHydroxocobalamin139, median 400 mcg
Vitamin B12: products naming each form, and their median amount per serving (DSLD version 9.4.0)
FormProductsShare of vitamin B12 productsMedian per serving
Cyanocobalamin7,14448%25 mcg
Methylcobalamin5,00534%100 mcg
Adenosylcobalamin2232%281.5 mcg
Hydroxocobalamin139under 1%400 mcg

Source: the form each label gives for its vitamin B12 row (DSLD "forms"), current labels.

Which products list the most vitamin B12?

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).

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 50 mcg; those entered in 2025, 30 mcg.

Median vitamin B12 per serving by the year the label entered DSLD (years with 20+ products)
YearProductsMedian per serving
201134150 mcg
201292237 mcg
20131,03925 mcg
201471450 mcg
201570140 mcg
201663637.5 mcg
201774850 mcg
201868135 mcg
201975330 mcg
20201,28150 mcg
20211,22529 mcg
20221,39830 mcg
20231,20530 mcg
20241,43850 mcg
20251,34330 mcg

Source: DSLD label entry dates and amounts, current labels.

In which products and brands?

Products listing vitamin B12 by DSLD product type

Vitamin B12 by product typeOther Combinations10,533Multi-Vitamin and Mineral (MVM)1,266Vitamin1,251Botanical with Nutrients1,193Amino acid/Protein60Single Vitamin and Mineral54Botanical31Non-Nutrient/Non-Botanical29
Vitamin B12 by product typeOther Combinations10,533Multi-Vitamin and Mineral (MVM)1,266Vitamin1,251Botanical with Nutrients1,193Amino acid/Protein60Single Vitamin and Mineral54Botanical31Non-Nutrient/Non-Botanical29
Vitamin B12 by product typeOther Combinations10,533Multi-Vitamin and Mineral (MVM)1,266Vitamin1,251Botanical with Nutrients1,193Amino acid/Protein60Single Vitamin and Mineral54Botanical31Non-Nutrient/Non-Botanical29
Vitamin B12 by product typeOther Combinations10,533Multi-Vitamin and Mineral (MVM)1,266Vitamin1,251Botanical with Nutrients1,193Amino acid/Protein60Single Vitamin and Mineral54Botanical31Non-Nutrient/Non-Botanical29
Vitamin B12 by product typeOther Combinations10,533Multi-Vitamin and Mineral (MVM)1,266Vitamin1,251Botanical with Nutrients1,193Amino acid/Protein60Single Vitamin and Mineral54Botanical31Non-Nutrient/Non-Botanical29

Brands listing it most: Douglas Laboratories (245), Nature's Way (236), Nature's Plus (226), Cellucor (111), Country Life (107), Bronson (95), NOW (91), Nature Made (89), ProCaps Laboratories (87), Nature's Bounty (84).

Every product listing vitamin B12

14,774 products, A to Z by name (page 64 of 296), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

Where next?