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Mega B-150

product on market Other (e.g. tea bag) Puritan's Pride Safety: 84/100
84/100

This product is generally safe

  • Niacin: 150mg is 4.3× the Tolerable Upper Intake Level (35mg)
  • Folate: 666mg is 666.0× the Tolerable Upper Intake Level (1.0mg)
  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 75% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This product contains a blend of B vitamins that support cellular energy metabolism and neurological function. There is strong research evidence for the roles of thiamine, riboflavin, and folate in these processes. The overall evidence coverage for this specific formulation is limited.

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

Alerts

Safety Alerts

Niacin: 150mg is 4.3× the Tolerable Upper Intake Level (35mg)

Folate: 666mg is 666.0× the Tolerable Upper Intake Level (1.0mg)

Contains proprietary blend — exact ingredient amounts not disclosed

Label

Product Label

Label for Mega B-150
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Caplet(s)
Serving Size
Other Combinations
Product Type
75%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

150 mg (12500% DV)
125.0× RDA — above typical dose 76 studies (A:0, B:33)
150 mg (11538% DV)
115.4× RDA — above typical dose 13 studies (A:0, B:1)
150 mg (938% DV)
Exceeds UL by 4.3× (UL: 35 mg) 196 studies (A:5, B:63)
100 mg (5882% DV)
76.9× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
666 mcg DFE (167% DV)
Exceeds UL by 666.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
150 mcg (6250% DV)
62.5× RDA — above typical dose 139 studies (A:1, B:44)
150 mcg (500% DV)
5.0× RDA — above typical dose 27 studies (A:0, B:11)
150 mg (3000% DV)
30.0× RDA — above typical dose 2 studies — no high-quality reviews
61 mg (11% DV)
Within RDA (0.1× RDA) 38 studies (A:1, B:7)
150 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews
150 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
Proprietary Blend
7.5 mg

Other Ingredients

Vegetable Cellulose Contains <2% of:
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Directions: For adults, take one (1) caplet daily, preferably with a meal.

Warnings & Precautions

Contains soy ingredients.

Warning: Not intended for use by pregnant or nursing women. If you are taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Keep out of reach of children.

Do not use if seal under cap is broken or missing.

Formulation Notes

Contains soy ingredients.

No artificial color or flavor, no preservatives, no sugar, no starch, no milk, no lactose, no gluten, no wheat, no yeast, no fish. Sodium free.

B-Complex Vitamin

Vegetarian Dietary Supplement

Additional Information

State-of-the-art manufacturing and packaging facilities ensure you the highest quality nutritional supplements money can buy. When it comes to your health...choose the best.

Store at room temperature.

Coated for ease of swallowing

To reorder item # 3802 www.puritan.com 1-800-645-1030

QA Quality Assured

Item # 3802 B3801 11F

B

Metadata

Product Details

UPC / SKU0 74312 13802 7
DSLD Entry Date2017-07-25
Product TypeOther Combinations
FormOther (e.g. tea bag)
BrandPuritan's Pride
DSLD ID76478
Data Updated2026-04-11
Research

Research Evidence

100
Research Sources
56
Avg Quality
48
Systematic Review
30
Meta Analysis
13
Rct
6
Clinical Trial
1
Cochrane Review
1
Regulatory Source
B Thiamine for prevention and treatment of Wernicke-Korsakoff Syndrome in people who abuse alcohol
Systematic Review The Cochrane database of systematic reviews 2013 PubMed DOI
B Efficacy of B-vitamins and vitamin D therapy in improving depressive and anxiety disorders: a systematic review of randomized controlled trials
Systematic Review Nutritional neuroscience 2023 PubMed DOI
B Effect of thiamine supplementation on glycaemic outcomes in adults with type 2 diabetes: a systematic review and meta-analysis
Meta Analysis BMJ open 2022 PubMed DOI
B Effect of intravenous thiamine administration on critically ill patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2024 PubMed DOI
B Effect of adjunctive vitamin C, glucocorticoids, and vitamin B1 on longer-term mortality in adults with sepsis or septic shock: a systematic review and a component network meta-analysis
Systematic Review Intensive care medicine 2022 PubMed DOI
B Effect of Combined Diclofenac and B Vitamins (Thiamine, Pyridoxine, and Cyanocobalamin) for Low Back Pain Management: Systematic Review and Meta-analysis
Meta Analysis Pain medicine (Malden, Mass.) 2020 PubMed DOI
B Thiamine, Ascorbic Acid, and Hydrocortisone As a Metabolic Resuscitation Cocktail in Sepsis: A Meta-Analysis of Randomized Controlled Trials With Trial Sequential Analysis
Meta Analysis Critical care medicine 2021 PubMed DOI
B The effects of thiamine supplementation on patients with heart failure: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Complementary therapies in medicine 2022 PubMed DOI
B Hydrocortisone Combined with Vitamin C and Thiamine in the Treatment of Sepsis/Septic Shock: A Systematic Review with Meta-Analysis and Trial Sequential Analysis
Meta Analysis Clinical and investigative medicine. Medecine clinique et experimentale 2023 PubMed DOI
B Thiamine for Wernicke-Korsakoff Syndrome in people at risk from alcohol abuse
Systematic Review The Cochrane database of systematic reviews 2004 PubMed
View all evidence for Thiamine →
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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.