🟢 97/100

This product looks safe

  • Niacin: 150mg is 4.3× the Tolerable Upper Intake Level (35mg)
  • Manganese: 20mg is 1.8× the Tolerable Upper Intake Level (11mg)
  • 73% of ingredients have research evidence
D Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 150mg is 4.3× the Tolerable Upper Intake Level (35mg)
⚠️ Manganese: 20mg is 1.8× the Tolerable Upper Intake Level (11mg)

Label Data

2 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
73% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A
5000 IU (100% DV)
Vitamin C
500 mg (833% DV)
100 IU (25% DV)
✅ Within RDA (0.2× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.0025mg UL 0.1mg
400 IU (1333% DV)
📊 17.9× RDA — above typical dose (UL: 1000 mg) 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 268.0mg UL 1000mg
50 mg (3333% DV)
📊 41.7× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 50mg
25 mg (1471% DV)
📊 19.2× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 25mg
150 mg (750% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 4.3× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 150mg UL 35mg
30 mg (1500% DV)
📊 23.1× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 30mg UL 100mg
800 mcg (200% DV)
✅ 2.0× RDA — within safe limits 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.8mg UL 1.0mg
50 mcg (833% DV)
📊 20.8× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.05mg
3000 mcg (1000% DV)
📊 100.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 3.0mg
100 mg (1000% DV)
📊 20.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 100mg
Calcium
200 mg (20% DV)
400 mg (100% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 400mg
30 mg (200% DV)
✅ 2.7× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 30mg UL 40mg
150 mcg (214% DV)
✅ 2.7× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.15mg UL 0.4mg
2 mg (100% DV)
✅ 2.2× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 2mg UL 10mg
20 mg (1000% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.8× (UL: 11 mg) 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 20mg UL 11mg
1000 mcg (833% DV)
📊 28.6× RDA — above typical dose 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 1.0mg
Potassium
99 mg (3% DV)
20 mcg
📊 Market median: 0.5mg (6 products) 📚 1 studies (Tier A: 0, B: 1)
This product: 0.02mg UL 1.8mg
📊 Market median: 500.0mg (861 products) 📚 60 studies (Tier A: 4, B: 13)
This product: 30mg

Other Ingredients

Capsule shell Magnesium Stearate

Label Claims — Verification

All Other
All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

RECOMMENDATION: Two (2) to six (6) capsules each day with meals as a dietary supplement or as otherwise directed by a healthcare professional.

⚠️ Warnings & Precautions

WARNING: If you are taking Diabetes medications, do not use this product without medical supervision

KEEP OUT OF REACH OF CHILDREN

Additional Information

Store in a cool, dry area.

Sealed with an imprinted safety seal for your protection.

Rev. 7/10

Formulated by Jonathan V. Wright, M.D. and Alan R. Gaby, M.D.

34227A DEC 11

Product Details

DSLD Entry Date 2013-05-24
Product Type Other Combinations
Form Capsule
DSLD ID 21832
Data Updated 2026-04-11

Research Evidence

337 Research Sources
54 Avg Quality Score
161 Meta Analysis
68 Systematic Review
51 Rct
48 Clinical Trial
2 Other
2 Regulatory Source
1 Narrative Review
1 Cochrane Review
1 Guideline
1 Openfda Safety
A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
Meta Analysis The Cochrane database of systematic reviews 2017
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020
A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of sport and health science 2023
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024
View all evidence for Vitamin A →

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