SupppediaFind. Compare. Understand.

Ingredient Guide

Vitamin B12

People comparing vegan diets, older age, low B12 status, metformin/PPI context, or energy-related nutrient gaps.

VitaminCompare by label detailsSafety context matters
Educational ingredient guideLabels can changeCheck dose and formNot medical advice

Compare first

  • Cyanocobalamin, methylcobalamin, adenosylcobalamin, or hydroxocobalamin
  • Dose and frequency
  • Diet pattern and absorption risk

Watch out

  • Energy claims are most relevant when B12 intake or absorption is low.
  • Metformin and proton pump inhibitors can be relevant to B12 status.

Label traps

  • Very high mcg numbers are common and do not always mean better results.
  • B12 is not a stimulant.