Vitamin D3 with K2
Updated over a week ago

Who Vitamin D3 with K2 is suitable for

Vitamin D with K2 tablets are suitable for adults aged 18 and over.

Vitamin D is found in the diet and is also produced in the skin after exposure to the sun.

Deficiency of vitamin D may occur when your diet or lifestyle does not provide you enough vitamin D or when your body requires more vitamin D (for instance when you are pregnant). Vitamin D3 deficiency can also occur through lack of skin exposure to sunlight.

Vitamin D3 with K2 tablets contain the active ingredients Vitamin D3 (commonly known as cholecalciferol) and K2 (Menaquinone-7). Each tablet contains 4000IU of Vitamin D which is considered the upper limit of Vitamin D that can be safely supplemented each day. Evidence suggests that Vitamin D and K2 together may be more effective for bone and cardiovascular health, than through the consumption of either alone.

Do not take Vitamin D3 with K2 if

  • You are allergic (hypersensitive) to vitamin D or any of the other ingredients in the tablets (these are listed in What Vitamin D3 with K2 contains)

  • You are taking any other supplements containing Vitamin D

  • You have high levels of vitamin D in your blood (hypervitaminosis D) - Have high blood levels of calcium (hypercalcaemia) or high urine levels of calcium (hypercalciuria)

  • You have kidney stones or serious kidney problems

  • You are pregnant, breastfeeding, taking medication or due for surgery. Please consult your healthcare practitioner before use.

  • You are taking anti-coagulants (blood thinners) except on the advice of a doctor.

How to use Vitamin D3 with K2 tablets

Take 1 tablet per day or as professionally directed. Do not exceed stated dose.

If you take too much Vitamin D3 with K2

Taking too much vitamin D may lead to vitamin D toxicity. Vitamin D toxicity is very rare and only occurs with excessive vitamin D supplementation. The daily upper limit for vitamin D supplementation is 4,000IU.

However, if you do take too much vitamin D, signs of toxicity include:

  • Nausea

  • Vomiting

  • Poor appetite

  • Constipation

  • Weakness

  • Weight loss

Too much vitamin D can also raise blood calcium levels, which may cause confusion, disorientation, and problems with heart rhythm.

There's not enough evidence to know what the effects might be of taking high doses of vitamin K supplements each day.

Taking Vitamin D3 with K2 with other medicines

Like most dietary supplements, Vitamin D3 with K2 may interact or interfere with other medicines or supplements you might be taking. Some examples include:

  • Prednisone and other corticosteroid medicines to reduce inflammation

  • Orlistat (weight-loss drug) and cholestyramine (cholesterol-lowering drug)

  • Phenobarbital and Phenytoin (drugs used to control epileptic seizures)

  • Diltiazem and thiazide diuretics (drugs used to control blood pressure)

  • Warfarin (blood-thinner)

  • Cephalexin (antibiotic)

The above list is non-exhaustive. Always talk to your doctor about taking a dietary supplement to ensure it is safe for you to take and doesn’t interact with any medication (prescription or otherwise) you are taking.

What Vitamin D3 with K2 tablets contains

The active substances are Vitamin D3 4000IU (100 micrograms) per tablet and K2 Menaquinone-7 (110micrograms).

The other ingredient in the tablet are Di-Calcium Phosphate, Magnesium Stearate, Microcrystalline Cellulose.

This product is suitable for vegetarians and vegans.

Storage and additional instructions for use

Keep out of reach of children. Store in a cool, dry place. Do not use if safety seal is broken or missing. Supplements should not replace a healthy diet and lifestyle.

In case of an urgent medical problem, please contact NHS 111 or by calling 111. NHS 111 is available 24 hours a day, 7 days a week.

For non-urgent clinical queries, please contact our clinical team at [email protected]

Did this answer your question?