Energy & Metabolism
99/100
This product looks safe
- Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
- 66% of ingredients have research evidence
C
Label Compliance Grade
Product Label
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Safety Alerts
⚠️ Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
Label Data
2 Caplet(s)
Serving Size
108
Servings
Other Combinations
Product Type
66%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin A
5000 IU
(100% DV)
Vitamin C
200 mg
(333% DV)
1600 IU
(400% DV)
✅ 2.7× RDA — within safe limits
📚 604 studies (Tier A: 16, B: 251)
30 IU
(100% DV)
✅ 1.3× RDA — within safe limits
📚 177 studies (Tier A: 3, B: 90)
80 mcg
(100% DV)
✅ Within RDA (0.7× RDA of 0.12 mg)
📚 273 studies (Tier A: 9, B: 175)
50 mg
(3333% DV)
📊 41.7× RDA — above typical dose
📚 76 studies (Tier A: 0, B: 33)
50 mg
(2941% DV)
📊 38.5× RDA — above typical dose
📚 12 studies (Tier A: 0, B: 1)
50 mg
(250% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.4× (UL: 35 mg)
📚 193 studies (Tier A: 5, B: 63)
50 mg
(2500% DV)
📊 38.5× 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)
50 mcg
(833% DV)
📊 20.8× RDA — above typical dose
📚 138 studies (Tier A: 1, B: 44)
300 mcg
(100% DV)
📊 10.0× RDA — above typical dose
📚 26 studies (Tier A: 0, B: 11)
50 mg
(500% DV)
📊 10.0× RDA — above typical dose
📚 1 studies — no high-quality reviews
Calcium
500 mg
(50% DV)
Iron
18 mg
(100% DV)
150 mcg
(100% DV)
✅ Within RDA (1.0× RDA of 0.15 mg)
📚 243 studies (Tier A: 4, B: 133)
100 mg
(25% DV)
📊 Market median: 4002.0mg (1 products)
📚 20 studies (Tier A: 0, B: 2)
15 mg
(100% DV)
✅ 1.4× RDA — within safe limits
📚 258 studies (Tier A: 6, B: 134)
200 mcg
(286% DV)
📊 3.6× RDA — above typical dose (UL: 0.4 mg)
📚 172 studies (Tier A: 0, B: 67)
2 mg
(100% DV)
✅ 2.2× RDA — within safe limits
📚 36 studies (Tier A: 0, B: 11)
2 mg
(100% DV)
✅ Within RDA (0.9× RDA of 2.3 mg)
📚 8 studies — no high-quality reviews
120 mcg
(100% DV)
📊 3.4× RDA — above typical dose
📚 197 studies (Tier A: 1, B: 55)
75 mcg
(100% DV)
✅ 1.7× RDA — within safe limits
📚 2 studies — no high-quality reviews
Energy & Metabolism Blend
119 mg
40 mg
📊 Market median: 260.0mg (249 products)
📚 156 studies (Tier A: 4, B: 61)
25 mg
📊 Market median: 200.0mg (198 products)
📚 6 studies — no high-quality reviews
10 mg
📊 Market median: 125.0mg (294 products)
📚 36 studies (Tier A: 1, B: 7)
10 mg
📊 Market median: 550.0mg (217 products)
📚 29 studies (Tier A: 0, B: 5)
4 mg
📊 Market median: 108.0mg (8 products)
📚 9 studies (Tier A: 0, B: 4)
2 mg
📊 Market median: 3.0mg (58 products)
📚 2 studies — no high-quality reviews
950 mcg
📊 Market median: 10.0mg (105 products)
📚 1 studies (Tier A: 0, B: 1)
950 mcg
📊 Market median: 10.0mg (35 products)
📚 5 studies (Tier A: 0, B: 2)
190 mcg
📊 Market median: 4.0mg (32 products)
50 mcg
📊 Market median: 4.0mg (47 products)
10 mcg
📊 Market median: 0.5mg (6 products)
📚 1 studies (Tier A: 0, B: 1)
Other Ingredients
Cellulose
Titanium Dioxide
natural Vanilla flavor
Vegetable Acetoglycerides
Riboflavin
Sucralose
Label Claims — Verification
❓
All Other
❓
Structure/Function
All Other (99% of products)
Structure/Function (76% of products)
Nutrient (58% of products)
Target Groups
Adult Female (18 - 50 Years)
Product Information
📋 Directions for Use
Directions: As a dietary supplement, take two caplets daily with food. For maximum benefits, take as directed every day.
⚠️ Warnings & Precautions
WARNING: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.
KEEP OUT OF 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 reach of children. In case of accidental overdose, call a doctor or poison control center immediately.
Discontinue use two week prior to surgery.
CONTAINS: Fish and Soybeans.
🧪 Formulation Notes
Each serving supplies approximately 100 mg of caffeine.
CONTAINS: Fish and Soybeans.
Additional Information
*This product is endorsed by the GNC Medical Advisory Board.
Store in a cool, dry place.
- Scientifically formulated multivitamin designed to boost energy, support metabolism & enhance calorie burning*
PHYSICIAN ENDORSED*
BONUS SIZE 20% MORE FREE
CODE 178932 I0G
Product Details
UPC / SKU
0 48107 13517 1
DSLD Entry Date
2014-05-23
Product Type
Other Combinations
Form
Other (e.g. tea bag)
Brand
GNC Women's Ultra Mega
DSLD ID
33250
Data Updated
2026-04-11
Research Evidence
337
Research Sources
54
Avg Quality Score
161
Meta Analysis
68
Systematic Review
51
Rct
48
Clinical Trial
2
Other
2
Regulatory Source
1
Narrative Review
1
Cochrane Review
1
Guideline
1
Openfda Safety
A
Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
A
Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
A
Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
A
Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
A
Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
A
Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
A
Food fortification with multiple micronutrients: impact on health outcomes in general population
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