B-100 Complex

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

Product Label

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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 Data

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

Supplement Facts — Evidence Check

100 mg (8333% DV)
📊 83.3× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 100mg
100 mg (7692% DV)
📊 76.9× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 100mg
100 mg (625% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 2.9× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 100mg UL 35mg
100 mg (5882% DV)
📊 76.9× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 100mg UL 100mg
666.7 mcg DFE (167% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 666.7× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 666.7mg UL 1.0mg
100 mcg (4167% DV)
📊 41.7× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.1mg
100 mcg (333% DV)
📊 3.3× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.1mg
100 mg (2000% DV)
📊 20.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 100mg
10 mg (2% DV)
📊 Market median: 125.0mg (294 products) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 10mg UL 3500mg
10 mg
📊 Market median: 500.0mg (9 products)
This product: 10mg
100 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 100mg

Other Ingredients

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

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (47% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free Sugar Free

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

Product Details

UPC / SKU 8 17716 01320 6
DSLD Entry Date 2022-06-16
Product Type Other Combinations
Form Tablet or Pill
Brand Best Naturals
DSLD ID 269245
Data Updated 2026-04-11

Research Evidence

100 Research Sources
56 Avg Quality Score
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 Cochrane
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 Cochrane
View all evidence for Thiamine →

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