Vitamin B12
This is what the ingredient is.
Vitamin B12 (cobalamin) is a water-soluble vitamin naturally found in animal products. Produced by bacterial fermentation for supplements and fortification.
Here is why it shows up on the label.
Nutrient fortification in cereals, plant-based milks, and supplements. Essential for red blood cell formation, DNA synthesis, and neurological function. Critical nutrient for vegans.
Here is what food agencies say.
FDA GRAS as nutrient. RDA: 2.4 mcg/day. No upper limit established due to low toxicity. Approved globally.
Here is what research has found.
Essential nutrient with well-documented functions. Deficiency causes pernicious anemia and irreversible neurological damage. Absorption decreases with age. Virtually no toxicity even at high doses.
Here are a few things worth knowing.
No toxicity concerns - extremely safe even at high supplemental doses. Deficiency is serious concern for vegans, elderly, and those with absorption issues. Food fortification is beneficial public health measure.
Sources
- FDA Regulations
- NIH Vitamin B12 Fact Sheet
- New England Journal Medicine 2013
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.