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B-Complex

product on market Capsule Natural Nutra Safety: 97/100
97/100

This product looks safe

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

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

The B-complex ingredients, including thiamine, riboflavin, and folate, are essential for energy metabolism and neurological function. There is strong evidence supporting their role in cellular health and cognitive maintenance. However, overall evidence coverage for this specific formulation is limited.

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

Alerts

Safety Alerts

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

Label

Product Label

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

Label Data

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

Supplement Facts — Evidence Check

15 mg (1250% DV)
12.5× RDA — above typical dose 76 studies (A:0, B:33)
20 mg (1538% DV)
15.4× RDA — above typical dose 13 studies (A:0, B:1)
25 mg (156% DV)
1.8× RDA — within safe limits 196 studies (A:5, B:63)
20 mg (1176% DV)
15.4× 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)
150 mcg (6250% DV)
62.5× RDA — above typical dose 139 studies (A:1, B:44)
300 mcg (1000% DV)
10.0× RDA — above typical dose 27 studies (A:0, B:11)
50 mg (1000% DV)
10.0× RDA — above typical dose 2 studies — no high-quality reviews
10 mg (2% DV)
Market median: 125.0mg (294 products) 38 studies (A:1, B:7)
Phytonutrient Blend
1000 mg
10 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
10 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews

Other Ingredients

Capsule Dicalcium Phosphate Magnesium Stearate Silica Cellulose Sodium Copper Chlorophyllin
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: Take two capsules daily with food.

Warnings & Precautions

Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Keep out of reach of children.

Formulation Notes

Contains no artificial colors, flavors or preservatives; no wheat, gluten, milk, eggs, peanuts, tree nuts, soy, crustacean shellfish or fish.

B vitamins are needed to maintain healthy nerves, skin, energy production and metabolism. Our B-Complex contains all the B vitamins because they provide maximum benefit when taken together.

Our product is formulated in a phytonutrient base including brown rice bra, greens, bee pollen, bioflavonoids, cruciferous and sea vegetables, carrot, parsley, fruits and fruit pectin, safflower, ginger and fennel. This base supports assimilation and provides naturally occurring EFA's, amino acids, fiber, bioflavonoids, plant pigments, and enzyme. Separating dosages will further optimize nutrient absorption and utilization.

Purity + potency guaranteed

Phytonutrient based Maintains health skin, hair, eyes and nerves

Vegetarian

Gluten free

Additional Information

To report a serious adverse event, call 1-888-710-0006

Metadata

Product Details

UPC / SKU7 04751 11697 2
DSLD Entry Date2021-04-22
Product TypeOther Combinations
FormCapsule
BrandNatural Nutra
DSLD ID247194
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.