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Vitamin D3 4,000 IU + K2 mcg

product on market Capsule Xtendlife 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

Vitamin D3 and K2 are supported by strong evidence for promoting calcium absorption and bone mineralization. Calcium further supports skeletal integrity, while black currant powder provides antioxidant properties. Overall evidence coverage for this specific formulation is limited.

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

Label

Product Label

Label for Vitamin D3 4,000 IU + K2 mcg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
60
Servings
Botanical with Nutrients
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

100 mcg (500% DV)
6.7× RDA — above typical dose (UL: 0.1 mg) 608 studies (A:16, B:251)
180 mcg (150% DV)
1.5× RDA — within safe limits 275 studies (A:9, B:175)
Calcium
30 mg (2% DV)
Black Currant, Powder
300 mg

Other Ingredients

Hydroxypropyl Methylcellulose Water Dextrin Maltodextrin
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions for use Adults: Take 1 capsule daily with food.

Formulation Notes

Xtend-Life Vitamin D3 + K2 combines the synergistic benefits of Vitamin D3, Vitamin K2 (K2-Mk$ and MenaQ7 K2-Mk7), with Aquamin marine calcium and NZ Blackcurrants which are rich in polyphenols. These combine to support healthy cardiovascular function, bone health, immunity and general health. Suitable for adults with a Vitamin D deficiency.

100 mcg / 4,000 IU with New Zealand Blackcurrant

Made in New Zealand using imported and local ingredients

Additional Information

Store in a cool, dry place.

NewZealand.com Licence No.100055

Metadata

Product Details

UPC / SKU9 421904 523555
DSLD Entry Date2024-09-25
Product TypeBotanical with Nutrients
FormCapsule
BrandXtendlife
DSLD ID318030
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.