🟢 88/100

This product is generally safe

  • Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 71% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

Vitamin C and B-complex vitamins support energy metabolism and immune function, with strong evidence supporting their role in cellular health. These ingredients are generally well-tolerated, though the overall evidence coverage for this specific formulation is limited. The profile maintains a high safety score.

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

Product Label

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Safety Alerts

⚠️ Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

1 Tablet(s) Serving Size
Other Combinations Product Type
71% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
500 mg (833% DV)
100 mg (6667% DV)
📊 83.3× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 100mg
100 mg (5882% DV)
📊 76.9× RDA — above typical dose 📚 13 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 100mg
100 mg (500% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 2.9× (UL: 35 mg) 📚 196 studies (Tier A: 5, B: 63)
RDA 14mg This product: 100mg UL 35mg
100 mg (5000% DV)
📊 76.9× RDA — above typical dose (UL: 100 mg) 📚 114 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 100mg UL 100mg
400 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.4 mg) 📚 226 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.4mg UL 1.0mg
500 mcg (8333% DV)
📊 208.3× RDA — above typical dose 📚 139 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.5mg
50 mcg (17% DV)
✅ 1.7× RDA — within safe limits 📚 27 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.05mg
100 mg (1000% DV)
📊 20.0× RDA — above typical dose 📚 2 studies — no high-quality reviews
RDA 5mg This product: 100mg
✅ Within RDA (0.1× RDA of 550 mg) 📚 38 studies (Tier A: 1, B: 7)
RDA 550mg This product: 50mg UL 3500mg
50 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 50mg
50 mg
📊 Market median: 500.0mg (9 products) 📚 7 studies — no high-quality reviews
This product: 50mg
📊 Market median: 500.0mg (283 products) 📚 174 studies (Tier A: 0, B: 62)
This product: 50mg
Proprietary Blend
5 mg

Other Ingredients

Vegetable Cellulose Contains Less Than 2% of

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Vegetarian Adult (18 - 50 Years)

Product Information

📋 Directions for Use

DIRECTIONS: For adults, take one (1) tablet daily, preferably with a meal.

⚠️ Warnings & Precautions

Keep out of reach of children.

WARNING: Not intended for use by pregnant or nursing women.

Avoid this product if you are allergic to yeast.

Contains wheat and soy ingredients.

Discontinue use and consult your doctor if any adverse reactions occur.

Do not use if seal under cap is broken or missing.

If you are taking any medications, consult your doctor before use.

🧪 Formulation Notes

Suitable for Vegetarians

Additional Information

Store at room temperature.

COATED FOR EASY SWALLOWING

Prod. No. 332 06F B330

Supports Nervous System Health*

These tablets provide a high-potency complex of B vitamins to help safeguard a sufficient daily intake. The B complex contributes to the health of the nervous system.* The B vitamins also play a role in energy metabolism in the body.* Choline and Inositol are also included.* Vitamin C plays an important role in supporting immune function.* As an antioxidant, Vitamin C helps neutralize harmful free radicals in cells.*

TIME RELEASED

B

LABORATORY TESTED GUARANTEED QUALITY

NATURE'S BOUNTY(R)

Product Details

UPC / SKU 0 74312 00332 5
DSLD Entry Date 2011-12-23
Product Type Other Combinations
Form Tablet or Pill
DSLD ID 4123
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
148 Meta Analysis
82 Systematic Review
71 Rct
62 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Other
1 Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

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