The Big One With Iron
99/100
This product looks safe
- Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
- 67% of ingredients have research evidence
C
Label Compliance Grade
Product Label
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Safety Alerts
⚠️ Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
Label Data
1 Capsule(s)
Serving Size
Multi-Vitamin and Mineral (MVM)
Product Type
67%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin A
8000 IU
(160% DV)
Vitamin C
150 mg
(250% DV)
400 IU
(100% DV)
✅ Within RDA (0.7× RDA of 0.015 mg)
📚 604 studies (Tier A: 16, B: 251)
100 IU
(333% DV)
📊 4.5× RDA — above typical dose (UL: 1000 mg)
📚 177 studies (Tier A: 3, B: 90)
100 mcg
(125% DV)
✅ Within RDA (0.8× RDA of 0.12 mg)
📚 273 studies (Tier A: 9, B: 175)
25 mg
(1667% DV)
📊 20.8× RDA — above typical dose
📚 76 studies (Tier A: 0, B: 33)
25 mg
(1471% DV)
📊 19.2× RDA — above typical dose
📚 12 studies (Tier A: 0, B: 1)
100 mg
(500% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 2.9× (UL: 35 mg)
📚 193 studies (Tier A: 5, B: 63)
25 mg
(1250% DV)
📊 19.2× RDA — above typical dose (UL: 100 mg)
📚 113 studies (Tier A: 3, B: 35)
400 mcg
(100% DV)
✅ Within RDA (1.0× RDA of 0.4 mg)
📚 225 studies (Tier A: 10, B: 105)
100 mcg
(1667% DV)
📊 41.7× RDA — above typical dose
📚 138 studies (Tier A: 1, B: 44)
200 mcg
(67% DV)
📊 6.7× RDA — above typical dose
📚 26 studies (Tier A: 0, B: 11)
100 mg
(1000% DV)
📊 20.0× RDA — above typical dose
📚 1 studies — no high-quality reviews
Iron
10 mg
(56% DV)
100 mcg
(67% DV)
✅ Within RDA (0.7× RDA of 0.15 mg)
📚 243 studies (Tier A: 4, B: 133)
15 mg
(100% DV)
✅ 1.4× RDA — within safe limits
📚 258 studies (Tier A: 6, B: 134)
100 mcg
(143% DV)
✅ 1.8× RDA — within safe limits
📚 172 studies (Tier A: 0, B: 67)
1 mg
(50% DV)
✅ 1.1× RDA — within safe limits
📚 36 studies (Tier A: 0, B: 11)
5 mg
(250% DV)
✅ 2.2× RDA — within safe limits
📚 8 studies — no high-quality reviews
100 mcg
(83% DV)
✅ 2.9× RDA — within safe limits
📚 197 studies (Tier A: 1, B: 55)
50 mcg
(67% DV)
✅ 1.1× RDA — within safe limits
📚 2 studies — no high-quality reviews
25 mg
📊 Market median: 496.0mg (192 products)
📚 20 studies — no high-quality reviews
1 mg
📊 Market median: 3.0mg (58 products)
📚 2 studies — no high-quality reviews
50 mcg
📊 Market median: 0.5mg (6 products)
📚 1 studies (Tier A: 0, B: 1)
Other Ingredients
vegetarian capsule
L-Leucine
Label Claims — Verification
❓
Nutrient
❓
All Other
All Other (99% of products)
Structure/Function (71% of products)
Nutrient (61% of products)
Approved Health (1% of products)
Target Groups
Adult (18 - 50 Years)
Product Information
📋 Directions for Use
DIRECTIONS: One (1) capsule daily with a meal as a dietary supplement, or as directed by a Doctor.
⚠️ Warnings & Precautions
WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. KEEP THIS PRODUCT OUT OF THE REACH OF CHILDREN. In case of an accidental overdose, call a doctor or poison control center immediately.
🧪 Formulation Notes
Excipient-free.
The Big One With Iron
Additional Information
Each preservative-free vegetarian capsule contains only the active ingredients listed on the label.
STORAGE: Keep tightly closed in a dry place; do not expose to excessive heat.
Manufactured in a GMP Certified Facility
7586A EXP 1/13
ESSENTIALS
Vitamin E is derived from soy oil.
V-09
Product Details
UPC / SKU
8 38287 00518 6
DSLD Entry Date
2013-11-25
Product Type
Multi-Vitamin and Mineral (MVM)
Form
Capsule
Brand
Metabolic Maintenance
DSLD ID
25144
Data Updated
2026-04-11
Research Evidence
566
Research Sources
56
Avg Quality Score
240
Meta Analysis
100
Clinical Trial
74
Systematic Review
71
Guideline
58
Rct
11
Cochrane Review
4
Regulatory Source
2
Other
2
Narrative Review
1
Observational
1
Openfda Safety
A
Systematic review and meta-analysis of intravenous iron therapy for patients with heart failure and iron deficiency
A
Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and adult menstruating women
A
Oral or parenteral iron supplementation to reduce deferral, iron deficiency and/or anaemia in blood donors
A
Wheat flour fortification with iron and other micronutrients for reducing anaemia and improving iron status in populations
A
Fortification of condiments and seasonings with iron for preventing anaemia and improving health
A
Screening and Supplementation for Iron Deficiency and Iron Deficiency Anemia During Pregnancy: US Preventive Services Task Force Recommendation Statement.
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