Vitamins A, D, and K2: why combine them
Understanding the importance of fat-soluble vitamins A + D + K2 is essential for improving your health. These three vitamins play a key role, particularly in supporting your bone structure, immune system, and cardiovascular health. Thanks to their synergistic combination, they work together to promote their benefits. Discover here how this synergy works and why it is preferred, especially in supplements such as Nutriting's NuADK.

Why choose the synergistic combination of fat-soluble vitamins A, D, and K2?
Vitamins A, D, and K2 are fat-soluble, meaning they dissolve in fats and are better absorbed when taken with a lipid source. This characteristic is crucial because these vitamins participate together in various essential physiological processes. Their synergy improves bone, cardiovascular, and immune functions by enhancing calcium assimilation and regulating cellular health. The synergistic combination of these three vitamins forms a fundamental complementary trio for maintaining strong bones and effectively supporting the immune system.
These three vitamins are often found in a unique complex: Animal Pak is an example, with its limitations.
In Nutriting's NuADK complex, this combination is finely dosed to offer an overall action, combining vitamin A, vitamin D3, and K2 MK7, all included in a quality lipid base.
NUTRITING
Nutriting nuADK - Vitamin D3 A K2 Bone Synergy
Nutriting nuADK brings together three fat-soluble vitamins in a single softgel capsule. One capsule provides 2,000 IU of vitamin D3, i.e. 50 µg and 1,000% of...
How do vitamins A, D, and K2 improve assimilation and act synergistically?
The lipid base, often organic olive oil, is essential because it significantly improves the absorption of fat-soluble vitamins. NuADK capsules thus use organic olive oil to ensure high bioavailability of these vitamins. Furthermore, their dosages are 100% physiological and balanced, ensuring effective and safe action, avoiding any risk of overdose.
Taking vitamin K2 with vitamin D is particularly important because vitamin D promotes calcium absorption, while K2 ensures it is directed to the bones and not to the arteries, thus avoiding undesirable deposits. This complementarity is one of the main reasons why the A + D + K2 combination is preferred.
It should also be noted that certain fat-soluble vitamins are not recommended in combination with vitamin D, thus highlighting the exclusive efficacy and safety of the A, D, and K2 trio.
For another synergistic formula based on vitamin D and K2, you can also consult TrainedbyJP D3 K2. If you prefer drop formats, Now Foods Vitamin D-3 Liquid offers quality vitamin D in an MCT base, suitable for improved assimilation.
NUTRITING
Nutriting nuADK Drops - Vitamin D3 K2 Drops Immunity & Bones
Nutriting nuADK Drops is a liquid food supplement combining three fat-soluble vitamins — A, D3 and K2 — in a 20 ml dropper bottle, roughly 500...
Essential benefits of the synergistic combination of vitamins A, D, and K2
This triple combination is a major asset for your health. It supports strong bones, contributes to a reinforced immune system, and improves calcium metabolism, essential for proper cardiovascular function. Choosing a formula like NuADK, rich in vitamin A, D3, and K2 MK7 with a natural lipid base, means opting for a studied combination rather than an isolated vitamin.
The same logic of chemical form and tolerance applies to iron: we detail it in our article on bisglycinate iron. For collagen, however, regulation is much more restrictive, as explained in our dedicated article.
IO.GENIX
IO Genix Vitamin D3 K2 - Bone Health and Immunity
It is a supplement that combines two fat-soluble vitamins in a single plant-based capsule: 2,000 IU of vitamin D3 and 200 µg of vitamin K2 in...
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