Vitamin D-3 & K-2
WhatToTrustTM Score
12345678910
NOW®
Last updated: Oct 10, 2025
NOW combines two nutrients extensively researched for their contribution to the health of bones, teeth and the cardiovascular system. Vitamin D3 promotes calcium transport and absorption. Recent studies indicate that vitamin D3 may play a role in proper insulin action and glucose metabolism and has an important function within the immune system. Vitamin K is critical for the formation of a healthy, strong bone matrix. Vitamin K's role in arterial health revolves around its ability to support proper calcium metabolism in vascular structures. Vitamin K2 is a readily active and biologically available form of vitamin K.*
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Vitamin D-3 & K-2 Ingredients*
We only evaluate bioactive ingredients—the ones that truly contribute to a product's performance. Below is a list of bioactive ingredients found in this product.
For each ingredient, the quantity in parentheses indicates the amount per serving.
Vitamin D3 is a form of vitamin D that the body produces in response to sun exposure, essential for bone health and immune system function.
Vitamin K2 is a nutrient important for blood clotting and bone health, primarily found in fermented foods and animal products. There are several forms of vitamin K2, with MK-4 being one of the most common. MK-4 is found in animal products such as meat, dairy, and eggs.
*These product and ingredient description statements have not been evaluated by the Food and Drug Administration (FDA). This product or its ingredients are not intended to diagnose, treat, cure or prevent any disease.
Product description and ingredient list are obtained from the product's brand/company website. Ingredient description is provided by our expert.
WhatToTrustTM scores are based on ingredient quality tests as well as pre-clinical and clinical testing to ensure that a product is scientifically developed and manufactured.
Breakdown of WhatToTrustTM Score for this product
WhatToTrustTM Science Score
10/10
Ingredient Quality Testing (Batch-to-Batch Testing)
Identity and Potency Testing
yes
Purity/Contaminant Testing
yes
Ingredient Validation Testing
Ingredient Validation Pre-clinical Testing (non-Canomiks test)
no
CanTrust by Canomiks® Ingredient Validation Pre-clinical Testing and Certification
no
Ingredient Clinical Trial/Testing
yes - (Product website does not mention clinical trial, but these specific ingredients have been clinically tested by others.)
Borrowed Science
no
Product Validation Testing
Product Validation Pre-clinical Testing (non-Canomiks test)
no
CanTrust by Canomiks® Product Validation Pre-clinical Testing and Certification
no
Product Clinical Trial/Testing
yes - (Product website does not list product clinical trial, but formulations with these specific ingredients have been clinically tested by others.)
Borrowed Science
no
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WhatToTrustTM Score
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