Home/ Supplements/ Vitamin B12/ Natural Vitamin B12

Natural Vitamin B12

product on market Capsule Dr. Berg Safety: 96/100
96/100

This product looks safe

  • Folate: 44mg is 44.0× the Tolerable Upper Intake Level (1.0mg)
  • 89% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

The B-vitamin complex, including thiamine, riboflavin, and folate, is supported by strong evidence for supporting cellular energy metabolism and neurological function. These ingredients play essential roles in converting nutrients into energy and maintaining cognitive health. Research indicates a high safety profile for these nutrients when taken within recommended dosages.

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

Alerts

Safety Alerts

Folate: 44mg is 44.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

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

Label Data

1 Capsule(s)
Serving Size
60
Servings
Botanical with Nutrients
Product Type
89%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

0.1 mg (8% DV)
Within RDA (0.1× RDA) 76 studies (A:0, B:33)
0.1 mg (8% DV)
Within RDA (0.1× RDA) 13 studies (A:0, B:1)
2 mg (13% DV)
Within RDA (0.1× RDA) 196 studies (A:5, B:63)
0.2 mg (12% DV)
Within RDA (0.2× RDA) 114 studies (A:3, B:35)
44 mcg DFE (11% DV)
Exceeds UL by 44.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
1000 mcg (41667% DV)
416.7× RDA — above typical dose 139 studies (A:1, B:44)
3.3 mcg (11% DV)
Within RDA (0.1× RDA) 27 studies (A:0, B:11)
0.5 mg (10% DV)
Within RDA (0.1× RDA) 2 studies — no high-quality reviews
20 mg (5% DV)
Market median: 500.0mg (1 products) 316 studies (A:8, B:159)

Other Ingredients

Magnesium Citrate L-Leucine Vegetable Capsule Broccoli Carrot Spinach Sunflower Chlorella Methylcobalamin
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: As a dietary supplement, take 1 capsule per day.

Warnings & Precautions

Caution: Do not exceed recommended dose.

Pregnant or nursing mothers, children under the age of 18, and individuals with known medical conditions should consult a physician before using this or any dietary supplement.

Pregnant or nursing mothers, children under the age of 18, and individuals with known medical conditions should consult a physician before using this or any dietary supplement.

Do not use if safety seal is damaged or missing.

Formulation Notes

Methylcobalamin With B Complex Blend

Additional Information

Store in a cool, dry place, with a lid.

Developed and distributed by Dr. Eric Berg DC To reorder: shop.drberg.com (800) 816-8184

Metadata

Product Details

DSLD Entry Date2025-08-22
Product TypeBotanical with Nutrients
FormCapsule
BrandDr. Berg
DSLD ID337169
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 →
Compare

Similar Products

Methyl B-12 5000 Micrograms
NutraBio · Capsule
100
Folic Acid & Vitamin B12 Caps
Life Extension · Capsule
100
Folate & Vitamin B12 Caps
Life Extension · Capsule
100
BioActive Folate & Vitamin B12
Life Extension · Capsule
100
Vitamin B 12 500 mcg
Solgar · Capsule
100
View all Vitamin B12 products →
Vitamin B12 research Best Vitamin B12 All Vitamin B12 products More from Dr. Berg 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.