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Vitamin D+K with Vitamin C

product on market Capsule Dr. Clark Store Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin D3 and K are supported by strong evidence for maintaining bone health and calcium regulation. Vitamin C is well-documented for its role in antioxidant support and immune function. These ingredients are generally recognized as safe, though evidence coverage for this specific formulation is limited.

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

Label

Product Label

Label for Vitamin D+K with Vitamin C
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
100
Servings
Vitamin
Product Type
67%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

500 IU (125% DV)
Within RDA (0.8× RDA) 608 studies (A:16, B:251)
225 mcg (281% DV)
1.9× RDA — within safe limits 275 studies (A:9, B:175)
Vitamin C
250 mg (417% DV)

Other Ingredients

Gelatin Capsules Rice Flour
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Info

Product Information

Directions for Use

Suggested use: Take 1 capsule, preferably with a meal containing fat, or as directed by a healthcare professional.

Warnings & Precautions

Keep away from children.

Warning: If you are pregnant, nursing or taking any medications, especially blood thinners, consult your doctor before use.

Test Vitamin D levels before taking this product. If any adverse reactions occur, immediately stop using this product and consult your doctor. If seal under cap is damaged or missing, do not use.

Formulation Notes

Our products don't contain flow agents like magnesium stearate. Not now, not ever.

Additional Information

Made in USA

Leader in purity Established by Dr. Clark's Family in 1993

Quality Assured GMP

Store in a cool, dry place.

Metadata

Product Details

UPC / SKU6 52384 10517 0
DSLD Entry Date2020-03-24
Product TypeVitamin
FormCapsule
BrandDr. Clark Store
DSLD ID215850
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.