Dr. Berg Natural Vitamin B12 Methylcobalamin with B Complex Blend supplement bottle
Dr. Berg

Natural Vitamin B12 Methylcobalamin with B Complex Blend

What We Researched
9 active ingredients analyzed · 9 inactive ingredients decoded · 3 brand certifications checked · Last updated: Mar 2026
73
Product Score Fair
82
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Thiamin 0.1 mg 8%
Riboflavin 0.1 mg 8%
Niacin 2 mg 13%
Vitamin B6 0.2 mg 12%
Folate 44 mcg DFE 11%
Vitamin B12 1000 mcg 41667%
Biotin 3.3 mcg 11%
Pantothenic acid 0.5 mg 10%
Magnesium 20 mg 5%
Bioavailability Very Good

Absorption Rating

  • Thiamin Good
  • Riboflavin Good
  • Niacin Good
  • Vitamin B6 Fair
  • Folate Fair
  • Vitamin B12 Fair
  • Biotin Good
  • Pantothenic acid Good
  • Magnesium Good
Other Ingredients Excellent

Fillers & Additives

  • Magnesium Citrate
  • L-Leucine
  • Vegetable Capsule
  • B vitamin complex blend (broccoli (flower and stem)
  • carrot (root)
  • spinach (leaf)
  • sunflower seed
  • chlorella)
  • Methylcobalamin
Efficacy Very Poor

Dosage Analysis

  • Thiamin 0.1 mg Under-dosed
  • Riboflavin 0.1 mg Under-dosed
  • Niacin 2 mg Under-dosed
  • Vitamin B6 0.2 mg Under-dosed
  • Folate 44 mcg DFE Under-dosed
  • Vitamin B12 1000 mcg Effective
  • Biotin 3.3 mcg Under-dosed
  • Pantothenic acid 0.5 mg Under-dosed
  • Magnesium 20 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Thiamin 0.1 mg 8%
Riboflavin 0.1 mg 8%
Niacin 2 mg 13%
Vitamin B6 0.2 mg 12%
Folate 44 mcg DFE 11%
Vitamin B12 1000 mcg 41667%
Biotin 3.3 mcg 11%
Pantothenic acid 0.5 mg 10%
Magnesium 20 mg 5%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Magnesium Citrate Generally_safe

It is used to provide magnesium.

L-Leucine Safe

It is included for its potential muscle-building and recovery benefits.

Vegetable Capsule Safe

It is used as a vegetarian alternative to gelatin capsules.

B vitamin complex blend (broccoli (flower and stem) Unknown
carrot (root) Unknown
spinach (leaf) Unknown
sunflower seed Unknown
chlorella) Unknown
Methylcobalamin Safe

It is included as a source of vitamin B12.

Brand Trust Report
Dr. Berg

Founded 1997 · Alexandria, Virginia, United States · 63 products · drberg.com/

Certifications

3 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Usda Organic Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed Source

Violation History

2 incidents
Lawsuit False advertising regarding the presence of artificial ingredients.2023Source
Prop 65 Lead2022-07-21Source
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Frequently Asked Questions
Is Dr. Berg Natural Vitamin B12 Methylcobalamin with B Complex Blend a good supplement?

Dr. Berg Natural Vitamin B12 Methylcobalamin with B Complex Blend received a product quality score of 73/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 9 active ingredients with 60 servings per container. Of the 9 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, Dr. Berg, holds a brand trust score of 82/100 with 3 verified certifications including Consumerlab, Fda Gmp Inspections, Usda Organic.

What are the ingredients in Dr. Berg Natural Vitamin B12 Methylcobalamin with B Complex Blend?

Dr. Berg Natural Vitamin B12 Methylcobalamin with B Complex Blend contains 9 active ingredients: Thiamin (0.1 mg), Riboflavin (0.1 mg), Niacin (2 mg), Vitamin B6 (0.2 mg), Folate (44 mcg DFE), Vitamin B12 (1000 mcg), and 3 more. Notable high-dose ingredients include Vitamin B12 at 41667% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Dr. Berg Natural Vitamin B12 Methylcobalamin with B Complex Blend safe to take?

Dr. Berg Natural Vitamin B12 Methylcobalamin with B Complex Blend has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Dr. Berg a trustworthy supplement brand?

Dr. Berg receives a brand trust score of 82/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1997 and headquartered in Alexandria, Virginia, United States, the company offers 63 products in their lineup. They hold 3 verified certifications including Consumerlab, Fda Gmp Inspections, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Dr. Berg has 2 historical regulatory incidents on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.