High Strength Vitamin D3 and K2

  • 4,000IU Vitamin D3 plus 250mcg Vitamin K2 MK-7 per tablet
  • Higher K2 ratio designed for high-dose D3 users
  • Vitamin D and Vitamin K each contribute to the maintenance of normal bones
Description

Vitamin D3 and Vitamin K2 work alongside each other in the body's calcium-handling pathways. D3 helps regulate calcium absorption from the diet; K2 plays a role in directing where that calcium is deposited. Many people now choose to take the two together rather than separately.

The standard ratio in combined D3/K2 supplements is around 50mcg of K2 per 1,000IU of D3. Our High Strength version increases this ratio to 250mcg of K2 alongside 4,000IU of D3, which some users prefer when supplementing with higher D3 doses.

Each tablet provides:

  • Vitamin D3 (cholecalciferol) — 4,000IU (100mcg)
Nutritional Information
Each Serving (1 Tablet) Contains:
Vitamin D (4,000 IU) 100 mcg 2,000%
Vitamin K2 (MK-7) 250 mcg 333%
Ingredients
Ingredients: Bulking Agents (Micro Crystalline Cellulose, Di Calcium Phosphate), Vitamin D3 Prep. (Acacia Gum, Sucrose, Sunflower Oil, Starch, Cholecalciferol Oil), Vitamin K2 Prep. (Beta Dextrin, Vitamin K2 MK-7 Oil), Anti Caking Agent (Magnesium Stearate).

Directions
Take one (1) tablet daily with a meal. Do not exceed the recommended dose.

Suitability
✔ Non GMO
✔ Suitable for vegetarians
✘ Not suitable for vegans
✔ Crustaceans free
✔ Egg free
✔ Fish free
✔ Peanut free
✔ Soy free
✔ Milk free
✔ Nut free
✔ Celery free
✔ Mustard free
✔ Sesame seed free
✔ Sulphur dioxide free
✔ Lupin free
✔ Molluscs free
Size

Customer Reviews

Based on 49 reviews
98%
(48)
2%
(1)
0%
(0)
0%
(0)
0%
(0)
T
Tom Davies
Very happy

These are great vitamins, good quality & think they are doing the job.
Will call again…

E
Ekaterina Gardiner

High Strength Vitamin D3 and K2

M
Meryl Hool
Great product

Good value, good delivery, trustworthy company

C
Christopher M W Hill
Why do they sell D3 and K2 separately as well as together.

No one seems to explain! What are the proper proportions?

M
Mohammed Rafiq
The BEST vitamins!

Amazing products and service too! Have been a loyal customer for years and got all my family on these vitamins! They are 10/10!! Couldnt recommend enough!


Are supplement

Are supplement "fillers" bad for you? A tablet manufacturer's honest answer

May 30, 2026

Magnesium stearate, silicon dioxide, microcrystalline cellulose and dicalcium phosphate are often labelled "nasties" by clean-supplement marketing. Here's what these excipients actually do, why a tablet can't be made without them, and the truth behind the magnesium stearate scare stories — from a company that presses its own tablets.
Read More
Active forms explained: why the form of a vitamin matters as much as the dose

Active forms explained: why the form of a vitamin matters as much as the dose

May 30, 2026

The number on a supplement label tells you the dose, but not the form — and the form decides how easily your body can use it. An honest look at methylcobalamin, L-5-MTHF, P-5-P, chelated minerals and MTHFR.
Read More
Pregnant woman outside, the health benefits of folate

What is methylfolate?

August 12, 2020

What folate does, where to find it in the diet, and the difference between folic acid and active methylfolate (L-5-MTHF) — including what MTHFR variations really mean.
Read More

Contact Us

Leave a message

Questions, comments or order inquiries? Please use the contact form and we respond as soon as we can.