Vitamin D3 + K2

Why D3 and K2 together?

Vitamin D3 (cholecalciferol) and vitamin K2 (menaquinone) are fat-soluble vitamins that are often sold together. Both are linked to bones:

• Vitamin D contributes to the maintenance of normal bones and to the normal function of the immune system.
• Vitamin K contributes to the maintenance of normal bones and to normal blood clotting.

The combination saves you a second product. That is all there is to it, and we do not promise more.

The forms at a glance

• Vitamin D3: in products usually as cholecalciferol, stated in IU or µg. 1 µg equals 40 IU.
• Vitamin K2 as MK-7: the most common form in combination products. Branded ingredients such as MenaQ7 are named on the label.
• Vegan: classic D3 comes from wool fat (lanolin), vegan versions from lichen.

Our range

• Drops: Allnutrition Vit D3 4000 + K2 Drops, Trace Minerals Ionic D3 + K2.
• Spray: Zein Pharma Vitamin D3 + K2 Spray and Osavi Vitamin D3 + K2 Oral Spray, both with peppermint.
• Capsules and tablets: Carlson Labs Vitamin D3 + K2, Osavi Vitamin D3 + K2, Swanson, Cytoplan, Nature's Answer Vitamin D3 & K2, Trec Nutrition Vit D3 + K2 MK-7, OstroVit Vitamin D3 4000 + K2 (also vegan) and Revive Vitamins K2 + D3.
• Combinations: OstroVit D3 2000 IU + K2 MK-7 with vitamin C and zinc, Olimp Gold Vit D3 + K2 Sport Edition and versions with omega-3.

What to look for

• Dose: compare IU or µg per serving – anything from 1000 to 4000 IU is available. Follow the dose on the label.
• K2 form and amount: MK-7 and the amount in µg are listed in the nutrition table.
• Carrier oil: drops and softgels often contain olive or MCT oil.
• Medicines: vitamin K affects blood clotting. If you take medicines or are pregnant, ask your doctor first.

Frequently asked questions

What does MK-7 mean?

MK-7 (menaquinone-7) is a form of vitamin K2 used in most D3 and K2 products.

Drops or capsules?

Drops let you adjust the amount finely, while capsules and tablets are pre-measured and handy when travelling.

Is there a vegan vitamin D3 + K2?

Yes, for example from OstroVit – with vitamin D3 from lichen instead of wool fat.