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B-Complex

product on market Capsule Nature's Sunshine Safety: 86/100
86/100

This product is generally safe

  • Folate: 200mg is 200.0× the Tolerable Upper Intake Level (1.0mg)
  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 80% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This blend contains B vitamins that support energy metabolism and neurological function. Research provides strong evidence for the roles of thiamine, riboflavin, and folate in cellular health. However, overall evidence coverage for this specific formulation is limited.

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

Alerts

Safety Alerts

Folate: 200mg is 200.0× the Tolerable Upper Intake Level (1.0mg)

Contains proprietary blend — exact ingredient amounts not disclosed

Label

Product Label

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

Label Data

1 Capsule(s)
Serving Size
100
Servings
Other Combinations
Product Type
80%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

33 mg (2750% DV)
27.5× RDA — above typical dose 76 studies (A:0, B:33)
33 mg (2538% DV)
25.4× RDA — above typical dose 13 studies (A:0, B:1)
33 mg (206% DV)
2.4× RDA — within safe limits 196 studies (A:5, B:63)
33 mg (1941% DV)
25.4× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
200 mcg DFE (50% DV)
Exceeds UL by 200.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
33 mcg (1375% DV)
13.8× RDA — above typical dose 139 studies (A:1, B:44)
100 mcg (333% DV)
3.3× RDA — above typical dose 27 studies (A:0, B:11)
33 mg (660% DV)
6.6× RDA — above typical dose 2 studies — no high-quality reviews
11 mg (2% DV)
Market median: 125.0mg (294 products) 38 studies (A:1, B:7)
Proprietary Blend
150 mg

Other Ingredients

Capsule Cellulose Vegetable Magnesium Stearate Silicon Dioxide
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Recommended use: Take 1 capsule with a meal three times daily.

Warnings & Precautions

Do not use if inner seal is missing or damaged.

Formulation Notes

General nutrition support

Yeast free

Additional Information

Bottle made from 100% post consumer recycled material. We are committed to you and our planet. Scan to learn more.

We source the world's purest ingredients, no matter where they are grown, to ensure the active nutrients are delivered just as nature intended.

New look! Same great product

Guaranteed Pure

Herbal experts since 1972

Metadata

Product Details

UPC / SKU0 99904 01778 8
DSLD Entry Date2020-05-22
Product TypeOther Combinations
FormCapsule
BrandNature's Sunshine
DSLD ID220975
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.