Mega B-50
84/100
This product is generally safe
- Niacin: 50mg is 1.4× 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
Product Label
Have a supplement label? Find it here.
Upload a photo of any supplement label to search our database of 92,312 products.
Safety Alerts
⚠️ Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
⚠️ Folate: 666mg is 666.0× the Tolerable Upper Intake Level (1.0mg)
ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed
Label Data
1 Caplet(s)
Serving Size
100
Servings
Other Combinations
Product Type
75%
Evidence Coverage
Supplement Facts — Evidence Check
50 mg
(4167% DV)
📊 41.7× RDA — above typical dose
📚 76 studies (Tier A: 0, B: 33)
50 mg
(3846% DV)
📊 38.5× RDA — above typical dose
📚 12 studies (Tier A: 0, B: 1)
50 mg
(313% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.4× (UL: 35 mg)
📚 193 studies (Tier A: 5, B: 63)
50 mg
(2941% DV)
📊 38.5× RDA — above typical dose (UL: 100 mg)
📚 113 studies (Tier A: 3, B: 35)
666 mcg DFE
(167% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 666.0× (UL: 1.0 mg)
📚 225 studies (Tier A: 10, B: 105)
50 mcg
(2083% DV)
📊 20.8× RDA — above typical dose
📚 138 studies (Tier A: 1, B: 44)
50 mcg
(167% DV)
✅ 1.7× RDA — within safe limits
📚 26 studies (Tier A: 0, B: 11)
50 mg
(1000% DV)
📊 10.0× RDA — above typical dose
📚 1 studies — no high-quality reviews
20 mg
(4% DV)
📊 Market median: 125.0mg (294 products)
📚 36 studies (Tier A: 1, B: 7)
50 mg
📊 Market median: 500.0mg (9 products)
50 mg
📊 Market median: 550.0mg (217 products)
📚 29 studies (Tier A: 0, B: 5)
Proprietary Blend
2.5 mg
Other Ingredients
Cellulose
Dicalcium Phosphate
Silica
Magnesium Stearate
natural Palm leaf glaze
Label Claims — Verification
❓
Nutrient
❓
All Other
❓
Structure/Function
All Other (99% of products)
Structure/Function (83% of products)
Nutrient (47% of products)
Target Groups
Vegetarian
Adult (18 - 50 Years)
Gluten Free
Dairy Free
Sugar Free
Product Information
📋 Directions for Use
Directions: For adults, take one (1) caplet up to two times daily, preferably with a meal.
⚠️ Warnings & Precautions
Contains soy ingredients.
Warning: If you are pregnant, nursing, 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
No artificial color, no artificial 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 Vitamin Supplement
Additional Information
Store at room temperature.
To reorder item #583 www.puritan.com 1-800-645-1030
QA Quality Assured
Product Details
UPC / SKU
0 74312 10583 8
DSLD Entry Date
2023-05-24
Product Type
Other Combinations
Form
Other (e.g. tea bag)
Brand
Puritan's Pride
DSLD ID
285555
Data Updated
2026-04-11
Research Evidence
100
Research Sources
56
Avg Quality Score
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
B
Efficacy of B-vitamins and vitamin D therapy in improving depressive and anxiety disorders: a systematic review of randomized controlled trials
B
Effect of thiamine supplementation on glycaemic outcomes in adults with type 2 diabetes: a systematic review and meta-analysis
B
Effect of intravenous thiamine administration on critically ill patients: A systematic review and meta-analysis of randomized controlled trials
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
B
Effect of Combined Diclofenac and B Vitamins (Thiamine, Pyridoxine, and Cyanocobalamin) for Low Back Pain Management: Systematic Review and Meta-analysis
B
Thiamine, Ascorbic Acid, and Hydrocortisone As a Metabolic Resuscitation Cocktail in Sepsis: A Meta-Analysis of Randomized Controlled Trials With Trial Sequential Analysis
B
The effects of thiamine supplementation on patients with heart failure: A systematic review and meta-analysis of randomized controlled trials
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
Compare Similar Products
Hydroxycut Organic
Hydroxycut
100
Slim Apple Pear
AdvoCare
100
Healthy Blood Sugar Formula
GNC Preventive Nutrition
100
PMS Relief
AZO
100
Healthy Metabolism Soft Chew Pink Lemonade
GNC Total Lean
100