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Label data · how much b12 per day supplement

Vitamin B12: mcg per serving on every B12 label we carry

B12 labels print 500 mcg to 5,000 mcg per tablet — hundreds of times the daily value — because absorption from a tablet is a small fraction and the vitamin is water-soluble. The table lists the printed B12 per serving and form for every B12 product we track.

1 labels we read

Lowest
1,000 mcg
Median
1,000 mcg
Highest
1,000 mcg

Vitamin B12 per serving as printed on the Supplement Facts panel of each product below.

What to check on the label

  • mcg per tablet and pieces per serving
  • Cyanocobalamin (standard, stable) vs methylcobalamin (marketed as 'active')
  • Sublingual vs swallowed

Vitamin B12 on each label we carry

Sorted by the printed amount. Tap a row to see it on eBay; the product page has the full label.

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  1. Nature's Bounty Vitamin B12 1000 mcg Coated Tablets

    Nature's Bounty Vitamin B12 1000 mcg Coated Tablets

    Vitamin B12: 1,000 mcg per serving

    Vitamin B12 1,000 mcgForm CyanocobalaminAmazon Full facts →

Go deeper

Questions people ask

Is 1,000 mcg of B12 too much?

It's a common label dose; B12 is water-soluble and has no NIH upper limit. Whether you need a supplement at all is a blood-test question for your doctor.

Methylcobalamin or cyanocobalamin?

Cyanocobalamin is the standard, stable form used in most studies; methylcobalamin is marketed as the active form. The mcg number on the label is the comparable part.

Part of the open label dataset (CC BY 4.0) · how we read labels · other ingredients: Creatine monohydrate · Whey protein · Plant protein · Collagen peptides · Magnesium · Melatonin · Ashwagandha · Vitamin D3