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B-100 Complex

product on market Tablet or Pill Best Naturals Safety: 93/100
93/100

This product looks safe

  • Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
  • Folate: 666.7mg is 666.7× the Tolerable Upper Intake Level (1.0mg)
  • 82% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This complex contains B vitamins that support cellular energy production and metabolic function. There is strong evidence for the role of folate and B vitamins in neurological health and red blood cell formation. The ingredient profile is supported by extensive research, though overall evidence coverage for this specific formulation is limited.

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

Alerts

Safety Alerts

Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)

Folate: 666.7mg is 666.7× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for B-100 Complex
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
120
Servings
Other Combinations
Product Type
82%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

100 mg (8333% DV)
83.3× RDA — above typical dose 76 studies (A:0, B:33)
100 mg (7692% DV)
76.9× RDA — above typical dose 13 studies (A:0, B:1)
100 mg (625% DV)
Exceeds UL by 2.9× (UL: 35 mg) 196 studies (A:5, B:63)
100 mg (5882% DV)
76.9× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
666.7 mcg DFE (167% DV)
Exceeds UL by 666.7× (UL: 1.0 mg) 226 studies (A:10, B:105)
100 mcg (4167% DV)
41.7× 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)
100 mg (2000% DV)
20.0× 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)
10 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews
100 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)

Other Ingredients

Dicalcium Phosphate Microcrystalline Cellulose Stearic Acid Croscarmellose Sodium Magnesium Stearate Silicon Dioxide Pharmaceutical Glaze
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: As a dietary supplement, take one (1) tablet daily, preferably with a meal.

Warnings & Precautions

Caution: For adults only, if you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Caution: For adults only, if you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur.

Keep out of the reach of children.

Do not use if safety seal is broken or missing.

Formulation Notes

B-100 complex provide a full complement of B-Vitamins plus Choline and Inositol. Each nutrient in the Vitamin B-100 Complex performs a unique role in maintaining proper metabolic functioning and is essential for well being. When taken together in a complex formula, the B Vitamins are critical for the healthy metabolism of homocysteine, and maintain the health of the nervous system, skin, eyes and hair. Certain research publications indicate that it may help support the following: Supports energy metabolism. Supports cardiovascular health. Supports healthy nervous system.

Premium formula

3rd party lab tested

No artificial color, flavor or sweetener, no preservatives, no sugar, no starch, no milk, no corn, no soy, no egg, no lactose, no gluten, no wheat, no yeast, no fish.

Additional Information

Keep in cool, dry place.

Made in USA

GMP Good Manufacturing Practice Product

For additional information call: 1-877-659-6004

Metadata

Product Details

UPC / SKU8 17716 01320 6
DSLD Entry Date2022-06-16
Product TypeOther Combinations
FormTablet or Pill
BrandBest Naturals
DSLD ID269245
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
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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.