Home/ Supplements/ Vitamin A/ Extend Plus

Extend Plus

product on market Capsule Vitamin Research Products Safety: 100/100
100/100

This product looks safe

  • Niacin: 125mg is 3.6× the Tolerable Upper Intake Level (35mg)
  • 66% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This profile contains essential fat-soluble and water-soluble vitamins that support immune function and bone health. There is strong clinical evidence for the roles of vitamins A, C, D, E, and K in maintaining systemic physiological processes. However, the overall evidence coverage for this specific formulation is limited.

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

Alerts

Safety Alerts

Niacin: 125mg is 3.6× the Tolerable Upper Intake Level (35mg)

Label

Product Label

Label for Extend Plus
Open Full PDF View on NIH DSLD →
Details

Label Data

6 Capsule(s)
Serving Size
60
Servings
Other Combinations
Product Type
66%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin A
4000 IU (80% DV)
Vitamin C
1000 mg (1667% DV)
500 IU (125% DV)
Within RDA (0.8× RDA) 608 studies (A:16, B:251)
200 IU (667% DV)
8.9× RDA — above typical dose (UL: 1000 mg) 179 studies (A:3, B:90)
75 mcg (94% DV)
Within RDA (0.6× RDA) 275 studies (A:9, B:175)
65 mg (4333% DV)
54.2× RDA — above typical dose 76 studies (A:0, B:33)
37.5 mg (2206% DV)
28.8× RDA — above typical dose 13 studies (A:0, B:1)
125 mg (625% DV)
Exceeds UL by 3.6× (UL: 35 mg) 196 studies (A:5, B:63)
50 mg (2500% DV)
38.5× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
200 mcg (50% DV)
Within RDA (0.5× RDA) 226 studies (A:10, B:105)
250 mcg (4167% DV)
104.2× RDA — above typical dose 139 studies (A:1, B:44)
375 mcg (125% DV)
12.5× RDA — above typical dose 27 studies (A:0, B:11)
250 mcg (4167% DV)
Within RDA (0.1× RDA) 2 studies — no high-quality reviews
Calcium
200 mg (20% DV)
75 mcg (50% DV)
Within RDA (0.5× RDA) 245 studies (A:4, B:133)
200 mg (50% DV)
Within RDA (0.5× RDA) 316 studies (A:8, B:159)
7.5 mg (50% DV)
Within RDA (0.7× RDA) 263 studies (A:6, B:134)
100 mcg (143% DV)
1.8× RDA — within safe limits 173 studies (A:0, B:67)
0.5 mg (25% DV)
Within RDA (0.6× RDA) 37 studies (A:0, B:11)
1.25 mg (63% DV)
Within RDA (0.5× RDA) 9 studies — no high-quality reviews
100 mcg (83% DV)
2.9× RDA — within safe limits 199 studies (A:1, B:55)
50 mcg (67% DV)
1.1× RDA — within safe limits 3 studies — no high-quality reviews
Potassium
50 mg (1% DV)
Market median: 600.0mg (7 products) 39 studies (A:2, B:13)
100 mg
Market median: 500.0mg (19 products)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Market median: 500.0mg (861 products) 61 studies (A:4, B:13)
Market median: 200.0mg (198 products) 6 studies — no high-quality reviews
25 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Gamma Oryzanol
7.5 mg
1.5 mg
Market median: 10.0mg (105 products) 2 studies (A:0, B:1)
1.5 mg
Market median: 10.0mg (35 products) 6 studies (A:0, B:2)
Within RDA (0.2× RDA) 38 studies (A:1, B:7)
100 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
Market median: 260.0mg (249 products) 158 studies (A:4, B:61)
Digestive Enzymes
30 mg
Japanese knotweed root extract
25 mg
Bamboo aerial portion extract
12.5 mg
1.5 mg
Market median: 3.0mg (58 products) 3 studies — no high-quality reviews
Market median: 0.5mg (6 products) 1 studies (A:0, B:1)

Other Ingredients

Hydroxypropylmethylcellulose
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Directions: Take 6 capsules two times per day with meals.

Warnings & Precautions

Keep out of reach of children.

Additional Information

Chromax(R)

Code Number: 3226

This product is manufactured in accordance with Good Manufacturing Practices (GMP).

Since 1979

VRP

Multivitamin/Multimineral Formula

TESTED FOR QUALITY & PURITY

Keep container tightly closed in a cool, dry and dark place.

300-VRP3226-G

Metadata

Product Details

UPC / SKU8 92727 00044 5
DSLD Entry Date2014-06-25
Product TypeOther Combinations
FormCapsule
DSLD ID34098
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 →
Compare

Similar Products

View all Vitamin A products →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.