K2 + D3

product on market Tablet or Pill Mason Natural 🟢 Safety: 100/100
Brand: Mason Natural
🟢 100/100

This product looks safe

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

Product Label

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Label Data

1 Tablet(s) Serving Size
100 Servings
Other Combinations Product Type
67% Evidence Coverage

Supplement Facts — Evidence Check

25 mcg (125% DV)
✅ 1.7× RDA — within safe limits 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.025mg UL 0.1mg
100 mcg (83% DV)
✅ Within RDA (0.8× RDA of 0.12 mg) 📚 273 studies (Tier A: 9, B: 175)
RDA 0.12mg This product: 0.1mg
Calcium
34 mg (3% DV)

Other Ingredients

Microcrystalline Cellulose Stearic Acid Croscarmellose Sodium Magnesium Stearate Silicon Dioxide Acacia Corn Starch Tocopherols Medium Chain Triglyceride Oil Sucrose Maltodextrin Sodium Ascorbate

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (70% of products) Approved Health (4% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Directions: Adults - Take one tablet daily, preferably with food, as a dietary supplement.

⚠️ Warnings & Precautions

Warning: Do not take Vitamin K if you have liver/ kidney damage or if taking blood thinners such as aspirin, heparin, and Coumadin. Caution: If you are pregnant, nursing, taking any medications or have any medical condition, consult your physician before use.

Discontinue use and consult your physician if any adverse reactions occur.

Keep out of reach of children.

Tamper-evident seal: Do not use product if seal appears tampered with.

🧪 Formulation Notes

Cardiovascular & bone health

Guaranteed no added: yeast, soy, wheat, dairy, fish, tree nuts, peanuts, egg, fragrance, artificial colors or flavors, animal products, crustacean shellfish. Sodium free.

Gluten free Soy free

Additional Information

Laboratory Tested Mason Guarantee cGMP Certified Good Manufacturing Practice 5 Star Certified

N

Store in a dry place under controlled room temperature: 20 degrees - 25 degrees C (68 degrees - 77 degrees F).

Please recycle

Product Details

UPC / SKU 3 11845 16261 8
DSLD Entry Date 2024-09-25
Product Type Other Combinations
Form Tablet or Pill
Brand Mason Natural
DSLD ID 318750
Data Updated 2026-04-11

Research Evidence

872 Research Sources
53 Avg Quality Score
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 Cochrane
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2014
PubMed DOI Cochrane
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 Cochrane
A Vitamin D supplementation for prevention of cancer in adults
Meta Analysis The Cochrane database of systematic reviews 2014
PubMed DOI Cochrane
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 Cochrane
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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