The Big One with Iron
97/100
This product looks safe
- Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
- Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
- 68% of ingredients have research evidence
D
Label Compliance Grade
Product Label
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Safety Alerts
⚠️ Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
⚠️ Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
Label Data
1 Capsule(s)
Serving Size
90
Servings
Multi-Vitamin and Mineral (MVM)
Product Type
68%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin A
2400 mcg RAE
(267% DV)
Vitamin C
125 mg
(139% DV)
25 mcg
(125% DV)
✅ 1.7× RDA — within safe limits
📚 604 studies (Tier A: 16, B: 251)
67 mg
(447% DV)
📊 4.5× RDA — above typical dose (UL: 1000 mg)
📚 177 studies (Tier A: 3, B: 90)
85 mcg
(71% DV)
✅ Within RDA (0.7× RDA of 0.12 mg)
📚 273 studies (Tier A: 9, B: 175)
25 mg
(2083% DV)
📊 20.8× RDA — above typical dose
📚 76 studies (Tier A: 0, B: 33)
25 mg
(1923% DV)
📊 19.2× RDA — above typical dose
📚 12 studies (Tier A: 0, B: 1)
100 mg NE
(625% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 2.9× (UL: 35 mg)
📚 193 studies (Tier A: 5, B: 63)
25 mg
(1471% DV)
📊 19.2× RDA — above typical dose (UL: 100 mg)
📚 113 studies (Tier A: 3, B: 35)
667 mcg DFE
(167% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 667.0× (UL: 1.0 mg)
📚 225 studies (Tier A: 10, B: 105)
100 mcg
(4167% DV)
📊 41.7× RDA — above typical dose
📚 138 studies (Tier A: 1, B: 44)
200 mcg
(667% DV)
📊 6.7× RDA — above typical dose
📚 26 studies (Tier A: 0, B: 11)
100 mg
(2000% 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
(136% DV)
✅ 1.4× RDA — within safe limits
📚 258 studies (Tier A: 6, B: 134)
100 mcg
(182% DV)
✅ 1.8× RDA — within safe limits
📚 172 studies (Tier A: 0, B: 67)
1 mg
(111% DV)
✅ 1.1× RDA — within safe limits
📚 36 studies (Tier A: 0, B: 11)
5 mg
(217% DV)
✅ 2.2× RDA — within safe limits
📚 8 studies — no high-quality reviews
100 mcg
(286% DV)
✅ 2.9× RDA — within safe limits
📚 197 studies (Tier A: 1, B: 55)
50 mcg
(111% 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)
15 mcg
✅ Within RDA (0.1× RDA of 0.12 mg)
📚 273 studies (Tier A: 9, B: 175)
Other Ingredients
Vegetarian Cellulose Capsule
Vitamin E
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)
Gluten Free
Dairy Free
Product Information
📋 Directions for Use
Directions: One (1) capsule daily with a meal, or as directed by a healthcare professional.
⚠️ Warnings & Precautions
Keep tightly closed in a cool, dry place, out of the reach of children.
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.
Vitamin E is derived from soy oil.
🧪 Formulation Notes
Egg free Gluten free Free of nuts Dairy free
Manufactured in a GMP Compliant Facility
Multivitamin
Additional Information
Keep tightly closed in a cool, dry place, out of the reach of children.
Moisture sensitive formula. Best consumed within 120 days after opening.
Product Details
UPC / SKU
8 38287 00518 6
DSLD Entry Date
2024-11-22
Product Type
Multi-Vitamin and Mineral (MVM)
Form
Capsule
Brand
Metabolic Maintenance
DSLD ID
321280
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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