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SuperFlex-4 with Vitamin D

product on market Tablet or Pill NewtonEverett Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Glucosamine, chondroitin, and MSM are commonly used to support joint health, though clinical evidence for their efficacy remains mixed. Vitamin D3 supports bone density and immune function with strong research backing. Overall, the evidence coverage for this specific combination is limited.

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

Label

Product Label

Label for SuperFlex-4 with Vitamin D
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Tablet(s)
Serving Size
75
Servings
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

400 IU (50% DV)
Within RDA (0.7× RDA) 608 studies (A:16, B:251)
1500 mg
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)
Chrondroitin Sulfate
1200 mg
Market median: 1000.0mg (2 products)

Other Ingredients

Dicalcium Phosphate Stearic Acid silicified Microcrystalline Cellulose Cellulose Fiber Croscarmellose Sodium Vegetable Magnesium Stearate Silicon Dioxide Aqueous Clear Coat
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: Take 2 tablets daily with a meal. Take 4-6 weeks to see results.

Warnings & Precautions

Warning: Consult a physician before using if pregnant, nursing or on medication.

Keep out of reach of children.

Do not use this product if safety seal on the bottle is broken. Do not exceed suggested daily intake.

Contains shellfish (shrimp, crab)

Formulation Notes

SuperFlex-4 combines the best of science and nature to support healthy joint function in active adults. 1) Glucosamine helps maintain healthy cartilage levels. 2) Chondroitin is essential for joint fluid which helps support cartilage. 3) MSM helps support the development of new cells and connective tissue. 4) Vitamin D aids in the absorption of calcium, thereby helping to form and maintain strong bones.

Gluten free - Non-GMO

Joint care formula Glucosamine 1500 mg Chondroitin 1200 mg MSM 250 mg per serving

Flexibility Comfort Mobility

Additional Information

Store in a cool, dry place.

Export only

Metadata

Product Details

UPC / SKU8 18423 02776 0
DSLD Entry Date2020-02-26
Product TypeOther Combinations
FormTablet or Pill
BrandNewtonEverett
DSLD ID213291
Data Updated2026-04-11
Research

Research Evidence

872
Research Sources
53
Avg Quality
309
Meta Analysis
309
Clinical Trial
111
Rct
71
Systematic Review
55
Guideline
4
Cochrane Review
4
Regulatory Source
2
Other
2
Narrative Review
2
Observational
1
Openfda Safety
A Vitamin D and vitamin D analogues for preventing fractures associated with involutional and post-menopausal osteoporosis
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D and vitamin D analogues for preventing fractures in post-menopausal women and older men
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D supplementation for prevention of cancer in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Interventions for preventing falls in older people in care facilities and hospitals
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Drugs for preventing lung cancer in healthy people
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A High prevalence of vitamin D deficiency in Asia: A systematic review and meta-analysis
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A Interventions for preventing falls in older people living in the community
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
View all evidence for Vitamin D →
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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.