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Vitamin B12 100 mcg

product on market Tablet or Pill Sunmark Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Vitamin B12 is essential for nerve function, red blood cell formation, and DNA synthesis. There is strong evidence supporting its role in preventing megaloblastic anemia and supporting cognitive health. This specific dosage provides a supplemental amount of the nutrient to maintain normal metabolic processes.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Vitamin B12 100 mcg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Vitamin
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

100 mcg (1667% DV)
41.7× RDA — above typical dose 139 studies (A:1, B:44)

Other Ingredients

Lactose Dicalcium Phosphate Corn Starch Magnesium Stearate Red 40 Lake Cyanocobalamin Ingredients
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Suggested use: Take one tablet daily with a full glass of water, preferably after a meal.

Warnings & Precautions

Keep out of the reach of children.

Additional Information

49348-392-10

DIETARY SUPPLEMENT USP VERIFIED(TM)

PRODUCT BENEFIT Helps maintain cardiovascular and nerve health and helps product healthy red blood cells.

USP has tested and verified ingredients, potency, and manufacturing process. USP sets official standards for dietary supplements. See www.uspverified.org

McKESSON Empowering Healthcare

Money Back Guarantee

Keep in a cool dry place, tightly closed.

FRESHNESS AND POTENCY GUARANTEED THROUGH:

SUN5250A06

Metadata

Product Details

UPC / SKU0 10939 52733 2
DSLD Entry Date2012-04-26
Product TypeVitamin
FormTablet or Pill
BrandSunmark
DSLD ID7749
Data Updated2026-04-11
Research

Research Evidence

237
Research Sources
53
Avg Quality
83
Meta Analysis
74
Systematic Review
45
Rct
29
Clinical Trial
2
Guideline
2
Regulatory Source
1
Openfda Safety
A Associations between serum Homocysteine, vitamin B9, and vitamin B12 levels and the formation of intracranial Aneurysms: A systematic review and meta-analysis
Meta Analysis Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2025 PubMed DOI
A Intake of vitamin B6, folate, and vitamin B12 and risk of coronary heart disease: a systematic review and dose-response meta-analysis of prospective cohort studies
Meta Analysis Critical reviews in food science and nutrition 2019 PubMed DOI
A Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency
Systematic Review The Cochrane database of systematic reviews 2018 PubMed DOI
A Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression
Meta Analysis Nutrients 2021 PubMed DOI
A Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis
Systematic Review Irish journal of medical science 2024 PubMed DOI
B Helicobacter pylori infection and micronutrient deficiency in pregnant women: a systematic review and meta-analysis
Meta Analysis BMJ open gastroenterology 2020 PubMed DOI
B Vitamin B12 supplementation during pregnancy for maternal and child health outcomes
Systematic Review The Cochrane database of systematic reviews 2024 PubMed DOI
B A comprehensive review and meta-regression analysis of randomized controlled trials examining the impact of vitamin B12 supplementation on homocysteine levels
Meta Analysis Nutrition reviews 2024 PubMed DOI
B Relationship between vitamin B12 levels and motor development: A systematic review
Systematic Review Clinical nutrition ESPEN 2024 PubMed DOI
B Vitamin B12, folate, and homocysteine in metabolic syndrome: a systematic review and meta-analysis
Meta Analysis Frontiers in endocrinology 2023 PubMed DOI
View all evidence for Vitamin B12 →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.