Brand: Thorne Research

Vitamin D/K2 Liquid 1 oz

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Product Description

About Vitamin D/K2

Vitamin D/K2 is a Thorne Research product that has been designed to support healthy muscles and bones. It is preserved with mixed tocopherols and contributes to the healthy functioning of the immune and cardiovascular systems. The formula manages to supplement the body with both vitamin D and vitamin K2 while the fact that it comes in a liquid form makes it even easier for the immune system, the cardiovascular system, the muscles, and the bones to receive the maximum health benefits related to the consumption of vitamins D and K2. Besides, it has been evidenced that supplementing with a blend of these vitamins offers greater support to the systems mentioned before than if taking each vitamin individually.

Vitamin D/K2 Uses

Vitamin D is an essential nutrient the body needs from fetal development and all the way to old age and is important for calcium absorption. Vitamin K2, on the other hand, is a series of menaquinones (molecules) that play a crucial role in the development and health of the bones while also directing calcium away from the kidneys and other soft tissues and straight to the bones.


  • Despite the fact that vitamin K1 has been associated with strong bones, K2 actually exerts an even more powerful influence on them than its K1 cousin.
  • A study in women going through their postmenopausal years has found that taking a blend of Vitamins D and K, as well as a combination of minerals, helps maintain the elasticity of the arteries, compared to groups of women that took either placebo or minerals with Vitamin D (but not vitamin K).
  • Vitamin D/K2 by Thorne is used to provide nutritional support for patients with tumors.

Why Your Vitamin D Levels Matter

Besides its huge role in healthy bones, Vitamin D also has a wide range of effects on several systems in the human body. And, given that achieving optimal Vitamin D levels via sunlight and proper dieting is not as effective as required (most of the time, at least) supplementing with Vitamin D is necessary to optimize multiple health areas. Here are some reasons why your Vitamin D levels matter to your overall health and wellbeing.

Vitamin D helps:

Balance your immune system - The immune function may be compromised with low vitamin D levels. We can understand how badly the immune relies on Vitamin D by looking into the immune system cell structure - the majority of these cells have Vitamin D receptors. In other words, Vitamin D contributes to the first response of the body when it detects that something is out of place/wrong internally.

Support muscle function – Vitamin D contributes to strong muscles and the way the muscles use potassium, calcium, and other vital minerals to contract. This, in turn, fosters the healthy functioning of muscle cells. Therefore, low Vitamin D levels can lead to reduced muscle performance and strength. It is also found that low Vitamin D is related to unexplained muscle pain and may even increase the likelihood of falls in people over 60.

Promote metabolic health – The primary blood sugar-regulating hormone is insulin, which is partially controlled by Vitamin D, especially when we are under stress. Lower Vitamin D levels in the body mean that it (the body) cannot regulate blood sugar and insulin levels appropriately, which increases the risk of diabetes and other chronic health conditions.

Have a youthful and healthy skin – Vitamin D is key for maintaining hair follicles, along with promoting healthy skin immunity, producing skin cells, and repairing skin that has been injured or cut. Although we need to expose ourselves to sunlight to make Vitamin D, it is the same vitamin that protects us from the negative effects of exposure to the sun.

Fight feeling blue – Vitamin D has a fundamental role in regulating serotonin - a chemical that features significant mood-boosting attributes. It comes, therefore, as no surprise that the brain is full of Vitamin D receptors!

Keep the cardiovascular system healthy – Once again, we find Vitamin D receptors in the blood vessels and the heart, which means that Vitamin D supports the healthy functioning of the heart tissues. It also helps restore/repair them when injured. At the same time, it helps regulate renin-an enzyme made in the kidneys responsible for keeping blood pressure within a normal range.

We all know that calcium is paramount for the production of protein collagen, which can help prevent bone breakage after a fall. However, it needs Vitamin D to “show” calcium the way/direction it needs to take. On top of that, Vitamin D enhances the gut’s ability to absorb the most calcium from foods and supplements. Finally, it will ensure that calcium is stored in the bones, and that the levels of calcium in the blood are within a normal range.

Vitamin D/K2 ingredients

The formula contains the following compounds (per serving):

Vitamin D3 (250mcg/2 drops)

Vitamin K2 (200mcg/2 drops)

It also includes mixed Tocopherols and medium-chain triglycerides.

Side Effects/ Warnings

  • If you have a history of hypersensitivity to any of the compounds in the formula, please refrain from using it.
  • Consult your healthcare professional before taking Vitamin D/K2 if you are pregnant.
  • Avoid the concurrent use of Vitamin D interferes with anticoagulant drugs, such as Coumadin, because Vitamin K interferes with their effect.

How to use

The recommended dose is 2 drops 1-3 times a day unless otherwise instructed by your healthcare professional. Each bottle of Vitamin D/K2 contains 600 servings (1 serving = 2 drops). To disperse the individual drops, ensure you invert the bottle. You may also mix the formula in beverages or add it to food - no need to keep refrigerated.

About the Manufacturer

Thorne Research is a leading manufacturer of nutritional supplements that provides licensed healthcare professionals with top-quality and health-promoting formulas for over 30 years. The company also features an exclusive sports line, namely NSF Certified for Sport, that is trusted by 11 US National Teams.

With stringent quality control and assurance testing procedures in place, Thorne Research manufactures all its products at the FDA-approved cGMP facility. Some of its top-rated formulas are cognition, bones, and heart health-promoting Methyl-Guard, detoxification-fostering Quercetin Phytosome, and immune function-enhancing Vitamin C With Flavonoids.