Dr Marks Vitamin D3 4000IU with K2 and Alfalfa - front packaging
Dr Marks Vitamin D3 with K2 and Alfalfa - supplement facts and nutritional information
Vitamin D3 4000IU with K2 benefits infographic - Dr Marks high-strength supplement
Dr Marks Vitamin D3 4000IU with K2 and Alfalfa - front packaging
Dr Marks Vitamin D3 with K2 and Alfalfa - supplement facts and nutritional information
Vitamin D3 4000IU with K2 benefits infographic - Dr Marks high-strength supplement

Dr Marks High Strength Vitamin D3 4000IU + K2 & Alfalfa Supplements (Best Before end date of July 2026)

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Exclusive Doctor's Formulation Clearance: This premium batch has a Best Before end date of July 2026. Enjoy massive savings while stock lasts. Safety and potency remain fully guaranteed.

Around 1 in 4 people in the UK have low Vitamin D levels, particularly during autumn and winter months. Dr Marks Vitamin D3 4000IU with K2 & Alfalfa goes beyond standard Vitamin D supplements — combining three complementary nutrients in one daily capsule for comprehensive bone, immune, and muscle support.

Why Add K2 and Alfalfa?

Vitamin K2 works synergistically with Vitamin D3, helping to direct calcium to your bones and teeth. Alfalfa provides additional plant-based micronutrients to complement the formula.

Key Benefits

  • Bone & Teeth Support — Vitamin D3 and K2 contribute to normal bone density and calcium metabolism
  • Immune System — Vitamin D contributes to the normal function of the immune system
  • Muscle Function — Vitamin D contributes to the maintenance of normal muscle function
  • Normal Psychological Function — Vitamin D contributes to normal psychological function

Take one capsule daily with food. Suitable for adults. Consult your GP if pregnant, breastfeeding, or taking medication.

Vitamin D needs little introduction. With 1 in 4 of us in the UK having low levels of Vitamin D, we are advised by the experts to take this vital supplement through autumn and winter as a minimum!

But we recommend you take all year round because whilst a holiday abroad somewhere warm may help top your Vitamin D levels are, most of us remain low in Vitamin D most of the time.

So unless you go abroad to warmer climates regularly, work outside a lot and are not covered up, you should take Vitamin D all year long like we do!

This common deficiency can cause a range of preventable symptoms and health issues like fatigue, weakness and low mood.

Added Vitamin K2 which works synergistically with Vitamin D for calcium metabolism and assimilation for health and strong bones.

Instead of adding a filler, we have filled each capsule with alfalfa which is a natural fibre rich herb that also contains many nutrients like vitamins C, K, B1, B2, B9 and minerals like Iron, Copper and Magnesium.

Recyclable packaging.

Free delivery.

Vitamin D is well know for its wide range of health benefits and experts continue to find new benefits. We provide Vitamin D3 which is superior to many other supplements offering other forms of this vitamin.

Whilst there is a long list of health benefits, regulations state only certain health claims can be made. These include;

- Vitamin D contributes to the maintenance of normal bones, teeth and muscle function.

- Vitamin D contributes to the normal function of the immune system.

- Vitamin D contributes to normal blood calcium levels.

- Vitamin D contributes to normal absorption / utilisation of calcium and phosphorus.

- Vitamin D has a role in the process of cell division.

- Vitamin K2 works in syndergy with Vitamin D and;

- Activates the protein, osteocalcin, which integrates calcium into bone.

- Activates matrix GLA protein (MGP) to bind excess calcium and promote arterial flow and flexibility.

- Contributes to normal blood clotting.

Cholecalciferol (Vit D3), MK7 VitalMK7 2000 (Vit K), Alfalfa (Medicago sativa), Vegetable Cellulose Capsule

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