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Ultra Preventive X

product on market Tablet or Pill Douglas Laboratories Safety: 87/100
87/100

This product is generally safe

  • Niacin/Niacinamide: 190mg is 5.4× the Tolerable Upper Intake Level (35mg)
  • Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
  • Magnesium Complex: 420mg is 1.2× the Tolerable Upper Intake Level (350mg)
  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 57% of ingredients have research evidence
F Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This formula contains vitamins A, C, D3, and E, which have strong evidence for supporting immune function and antioxidant defense. These nutrients play established roles in maintaining cellular health and respiratory integrity. The evidence coverage for this specific combination is limited, though the individual components are well-researched.

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

Alerts

Safety Alerts

Niacin/Niacinamide: 190mg is 5.4× the Tolerable Upper Intake Level (35mg)

Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)

Magnesium Complex: 420mg is 1.2× the Tolerable Upper Intake Level (350mg)

Contains proprietary blend — exact ingredient amounts not disclosed

Label

Product Label

Label for Ultra Preventive X
Open Full PDF View on NIH DSLD →
Details

Label Data

4 Tablet(s)
Serving Size
15
Servings
Other Combinations
Product Type
57%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin A
2250 mcg (250% DV)
Vitamin C
1000 mg (1111% DV)
25 mcg (125% DV)
1.7× RDA — within safe limits 608 studies (A:16, B:251)
12.5 mcg (63% DV)
Within RDA (0.8× RDA) 608 studies (A:16, B:251)
134 mg (893% DV)
8.9× RDA — above typical dose (UL: 1000 mg) 179 studies (A:3, B:90)
100 mg (8333% DV)
83.3× RDA — above typical dose 76 studies (A:0, B:33)
50 mg (3846% DV)
38.5× RDA — above typical dose 13 studies (A:0, B:1)
190 mg (1188% DV)
Exceeds UL by 5.4× (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)
667 mcg DFE (167% DV)
Exceeds UL by 667.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
250 mcg (10417% DV)
104.2× RDA — above typical dose 139 studies (A:1, B:44)
150 mcg (500% DV)
5.0× 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
275 mg (50% DV)
Within RDA (0.5× RDA) 38 studies (A:1, B:7)
Calcium
420 mg (32% DV)
100 mcg (67% DV)
Within RDA (0.7× RDA) 245 studies (A:4, B:133)
420 mg (100% DV)
Exceeds UL by 1.2× (UL: 350 mg) 316 studies (A:8, B:159)
25 mg (227% DV)
2.3× RDA — within safe limits 263 studies (A:6, B:134)
100 mcg (182% DV)
1.8× RDA — within safe limits 173 studies (A:0, B:67)
2 mg (222% DV)
2.2× RDA — within safe limits 37 studies (A:0, B:11)
9 mg (391% DV)
3.9× RDA — above typical dose (UL: 11 mg) 9 studies — no high-quality reviews
100 mcg (286% DV)
2.9× RDA — within safe limits 199 studies (A:1, B:55)
50 mcg (111% DV)
1.1× RDA — within safe limits 3 studies — no high-quality reviews
Potassium
100 mg (2% DV)
N-Acetyl-L-Cysteine
150 mg
150 mg
Market median: 496.0mg (192 products) 20 studies — no high-quality reviews
100 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
100 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Papain
100 mg
50 mg
Market median: 200.0mg (136 products) 3 studies — no high-quality reviews
Market median: 100.0mg (284 products) 10 studies (A:0, B:4)
Market median: 200.0mg (198 products) 6 studies — no high-quality reviews
25 mg
Market median: 500.0mg (19 products)
Market median: 3.0mg (58 products) 3 studies — no high-quality reviews
25 mcg
Market median: 0.5mg (6 products) 1 studies (A:0, B:1)
22.5 mcg
Within RDA (0.2× RDA) 275 studies (A:9, B:175)
Proprietary Organic Fruit and Vegetable Blend
700 mg
Organic Phytonutrient Blend
Carotenoids

Other Ingredients

Microcrystalline Cellulose Hydroxypropyl Methylcellulose Croscarmellose Sodium Ascorbyl Palmitate Silica Coating
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: As a dietary supplement, adults take 4 tablets twice daily or as directed by your health professional. This product is best taken with meals.

Warnings & Precautions

Warning: Not to be taken by pregnant or lactating women. If you have any health condition or are taking any medication, consult your health professional before use.

Discontinue immediately if a burning sensation occurs. Not recommended for people with ulcers.

Consult a health professional prior to use if you are taking blood thinners.

Take with food. If you have liver problems, consult your health professional before use.

Keep out of the reach of children.

Use only if safety seal is intact.

Formulation Notes

Gluten-free, Non-GMO

Signature multivitamin/mineral with fruits and vegetables for daily wellness

Additional Information

Store in a cool, dry place.

Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity. Scan to learn about our manufacturing excellence

Servings per container 30 15

Metadata

Product Details

UPC / SKU3 10539 97815 3
DSLD Entry Date2021-03-25
Product TypeOther Combinations
FormTablet or Pill
BrandDouglas Laboratories
DSLD ID245422
Data Updated2026-04-11
Research

Research Evidence

337
Research Sources
54
Avg Quality
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 PubMed DOI
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 PubMed DOI
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 PubMed DOI
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 PubMed DOI
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019 PubMed DOI
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 PubMed DOI
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
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 PubMed DOI
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
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 PubMed DOI
View all evidence for Vitamin A →
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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.