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B-Complex Complete

product on market Other (e.g. tea bag) GNC Safety: 96/100
96/100

This product looks safe

  • Niacin: 75mg is 2.1× the Tolerable Upper Intake Level (35mg)
  • Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
  • 75% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This profile includes essential vitamins that support immune function and metabolic processes, with strong evidence supporting the roles of vitamins C, D, and thiamine. Research indicates these nutrients are critical for cellular health and energy production. The formulation maintains a high safety score, suggesting a low risk of adverse effects for most users.

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

Alerts

Safety Alerts

Niacin: 75mg is 2.1× the Tolerable Upper Intake Level (35mg)

Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for B-Complex Complete
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Caplet(s)
Serving Size
30
Servings
Other Combinations
Product Type
75%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin A
3000 mcg (333% DV)
Vitamin C
500 mg (556% DV)
10 mcg (50% DV)
Within RDA (0.7× RDA) 608 studies (A:16, B:251)
82.6 mg (551% DV)
5.5× RDA — above typical dose (UL: 1000 mg) 179 studies (A:3, B:90)
75 mg (6250% DV)
62.5× RDA — above typical dose 76 studies (A:0, B:33)
75 mg (5769% DV)
57.7× RDA — above typical dose 13 studies (A:0, B:1)
75 mg (469% DV)
Exceeds UL by 2.1× (UL: 35 mg) 196 studies (A:5, B:63)
75 mg (4412% DV)
57.7× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
667 mcg DFE (167% DV)
Exceeds UL by 667.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
250 mcg (10417% DV)
104.2× RDA — above typical dose 139 studies (A:1, B:44)
75 mcg (250% DV)
2.5× RDA — within safe limits 27 studies (A:0, B:11)
100 mg (2000% DV)
20.0× RDA — above typical dose 2 studies — no high-quality reviews
Iron
18 mg (100% DV)
50 mcg (91% DV)
Within RDA (0.9× RDA) 173 studies (A:0, B:67)
2 mg (222% DV)
2.2× RDA — within safe limits 37 studies (A:0, B:11)
25 mcg (71% DV)
Within RDA (0.7× RDA) 199 studies (A:1, B:55)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Market median: 450.0mg (390 products) 160 studies (A:0, B:63)
Market median: 495.0mg (70 products)
Market median: 420.0mg (127 products) 4 studies (A:0, B:1)

Other Ingredients

Microcrystalline Cellulose Hydroxypropyl Methylcellulose Dicalcium Phosphate Stearic Acid Ethylcellulose Shellac Silicon Dioxide Magnesium Stearate Talc Carnauba wax
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a dietary supplement, take two caplets daily.

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 reach children. In case of accidental overdose, call a doctor or poison control center immediately.

Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.

Discontinue use two weeks prior to surgery. Niacin may cause a temporary flushing reaction. Inform your physician of this product's biotin content before any lab test.

Keep out of reach of children.

Formulation Notes

Disintegrates over 5 hours for time-release benefit.

Gluten free

Timed-release

Metabolism & energy production Immune & nervous system functions

Additional Information

Store in a cool, dry place.

For more information: 1-888-462-2548

30-day supply

Metadata

Product Details

UPC / SKU0 48107 20515 7
DSLD Entry Date2020-05-22
Product TypeOther Combinations
FormOther (e.g. tea bag)
BrandGNC
DSLD ID219244
Data Updated2026-04-11
Research

Research Evidence

337
Research Sources
54
Avg Quality
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
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011 PubMed DOI
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016 PubMed DOI
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
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
Meta Analysis Journal of sport and health science 2023 PubMed DOI
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
View all evidence for Vitamin A →
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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.