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B-Complex

product on market Tablet or Pill GNC Select Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 71% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This B-complex contains essential vitamins that support energy metabolism and neurological function. Strong research evidence indicates these nutrients are critical for converting nutrients into cellular energy. The ingredient profile is associated with a high safety score.

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

Label

Product Label

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

Label Data

1 Tablet(s)
Serving Size
360
Servings
Multi-Vitamin and Mineral (MVM)
Product Type
71%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

3 mg (250% DV)
2.5× RDA — within safe limits 76 studies (A:0, B:33)
3 mg (231% DV)
2.3× RDA — within safe limits 13 studies (A:0, B:1)
20 mg (125% DV)
1.4× RDA — within safe limits 196 studies (A:5, B:63)
2 mg (118% DV)
1.5× RDA — within safe limits 114 studies (A:3, B:35)
6 mg (250% DV)
2500.0× RDA — above typical dose 139 studies (A:1, B:44)
10 mg (200% DV)
2.0× RDA — within safe limits 2 studies — no high-quality reviews
Calcium
134 mg (10% DV)

Other Ingredients

Dicalcium Phosphate Microcrystalline Cellulose Stearic Acid Croscarmellose Sodium Hydroxypropyl Methylcellulose Magnesium Stearate Polyethylene Glycol Triethyl Citrate Acetoglycerides Polysorbate 80 Titanium Dioxide Blue #1 Lake Red #40 Red #40 Lake Yellow #6 Lake Carnauba Wax
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a dietary supplement, take one tablet daily.

Warnings & Precautions

Keep out of reach of children.

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.

Formulation Notes

Preservative free No artificial flavors

B-Complex with vitamin b-12

Essential for energy production and carbohydrate metabolism

Additional Information

Store in a cool, dry place.

GNC Quality since 1935

360-Day Supply

Metadata

Product Details

UPC / SKU0 48107 24924 3
DSLD Entry Date2025-05-21
Product TypeMulti-Vitamin and Mineral (MVM)
FormTablet or Pill
BrandGNC Select
DSLD ID328813
Data Updated2026-04-11
Research

Research Evidence

100
Research Sources
56
Avg Quality
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
Systematic Review The Cochrane database of systematic reviews 2013 PubMed DOI
B Efficacy of B-vitamins and vitamin D therapy in improving depressive and anxiety disorders: a systematic review of randomized controlled trials
Systematic Review Nutritional neuroscience 2023 PubMed DOI
B Effect of thiamine supplementation on glycaemic outcomes in adults with type 2 diabetes: a systematic review and meta-analysis
Meta Analysis BMJ open 2022 PubMed DOI
B Effect of intravenous thiamine administration on critically ill patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2024 PubMed DOI
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
Systematic Review Intensive care medicine 2022 PubMed DOI
B Effect of Combined Diclofenac and B Vitamins (Thiamine, Pyridoxine, and Cyanocobalamin) for Low Back Pain Management: Systematic Review and Meta-analysis
Meta Analysis Pain medicine (Malden, Mass.) 2020 PubMed DOI
B Thiamine, Ascorbic Acid, and Hydrocortisone As a Metabolic Resuscitation Cocktail in Sepsis: A Meta-Analysis of Randomized Controlled Trials With Trial Sequential Analysis
Meta Analysis Critical care medicine 2021 PubMed DOI
B The effects of thiamine supplementation on patients with heart failure: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Complementary therapies in medicine 2022 PubMed DOI
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
Meta Analysis Clinical and investigative medicine. Medecine clinique et experimentale 2023 PubMed DOI
B Thiamine for Wernicke-Korsakoff Syndrome in people at risk from alcohol abuse
Systematic Review The Cochrane database of systematic reviews 2004 PubMed
View all evidence for Thiamine →
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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.