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Vitamin B12 100 mcg

product on market Tablet or Pill Well At Walgreens 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 and the production of red blood cells. There is strong evidence supporting its role in maintaining cognitive health and energy metabolism. This specific formulation provides a low dose suitable for general nutritional maintenance.

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

Dicalcium Phosphate powdered Cellulose Cyanocobalamin Croscarmellose Sodium Silicon Dioxide Magnesium Stearate FD&C Red No. 40 Lake
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Adults - one tablet daily with food as a dietary supplement.

Warnings & Precautions

Warnings Keep out of the reach of children.

Pregnant or nursing women, individuals taking medication(s) or persons who have a health condition should consult their physician before using this product.

Formulation Notes

Vitamin B12 is needed to synthesize hemoglobin, help manufacture healthy blood cells and maintain the nervous system.

No artificial flavors, sugar, gluten, trans fat, lactose.

Additional Information

Nervous system health

Details Quick view Synthesizes hemoglobin Helps manufacture healthy blood cells Maintains the nervous system

Energy metabolism.

100% satisfaction guaranteed

Store at 15(0)-30(0)C (59(0)-86(0)F).

Metadata

Product Details

UPC / SKU3 11917 17170
DSLD Entry Date2019-10-23
Product TypeVitamin
FormTablet or Pill
BrandWell At Walgreens
DSLD ID207016
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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Vitamin B12 research Best Vitamin B12 All Vitamin B12 products More from Well At Walgreens View on NIH DSLD →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.