Stronger Bones
Heart Health
Energy & Vitality

rated 4.8/5 by 1000+ customers

Vitamin D3/K2 4000iu

Regular price £17.99
Regular price £17.99 Sale price £23.99
Save 25% Sold out

Supports strong bones & teeth through optimal calcium absorption

Helps direct calcium to bones, not arteries (D3 + K2 synergy)

Contributes to normal immune system function

Supports daily energy levels & reduces fatigue

Supports muscle function & overall physical performance

High-strength 4000 IU formula for daily support

Designed for low sunlight lifestyles

Quality checked in UK

High-strength daily formula designed for optimal absorption and utilisation:

  • Vitamin D3 (4000 IU / 100μg)
  • Vitamin K2 (MK-7) – 200μg
  • Vitamin C (as Calcium Ascorbate) – 50mg
  • Calcium (Citrate) – 120mg

Other ingredients:

  • Capsule Shell (Vegetable Cellulose)
  • MCT Oil (supports absorption)
  • Starch (stabiliser)
  • Microcrystalline Cellulose

Key Features

  • High-strength 4000 IU Vitamin D3
  • Premium K2 MK-7 form
  • Includes Vitamin C & Calcium
  • Suitable for vegetarians
  • No major allergens

Altitude D3 + K2 is a high-strength daily formula designed to support energy, immunity, and long-term health.

In the UK, many people are deficient in Vitamin D due to limited sunlight exposure, which can impact energy levels, immune function, and overall wellbeing.

This formula combines Vitamin D3 (4000 IU) with Vitamin K2 (MK-7), Vitamin C, and calcium to ensure your body not only absorbs calcium effectively, but also uses it correctly.

Vitamin D helps absorb calcium, while Vitamin K2 supports its proper utilisation in the body, helping maintain strong bones and overall balance.

šŸ‘‰ A smarter, more complete approach to daily supplementation.

Take 1 capsule daily with food.

  • 60 capsules per bottle
  • 2-month supply

For best results, take consistently as part of your daily routine.


Storage:
Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Note:
Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, taking medication, or have a medical condition, consult your healthcare professional before use.

Free UK Shipping on subscriptions and one-off orders over £40.
Free EU Shipping on orders over £80.
Free International Shipping on orders over £100.
Orders are dispatched the same working day or the next working day, depending on the time of purchase.

UK Delivery:Ā Typically 1–2 working days from the time you place your order.

International Delivery:Ā Usually between 4 - 14 days depending on the destination.

  • Quality checked in the UK
  • Produced to high manufacturing standards
  • Carefully formulated for daily use

Each ingredient is selected for its recognised role in supporting normal body functions, including immune health and bone maintenance.

Order will arrive by Wednesday, June 10th

QC'd in UK

Money Back Guarantee

Fast Delivery

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View full details
Strong Bones & Teeth
Heart & Calcium Balance
Immune System Support
Daily Energy & Vitality
Muscle Function Support
Strong Bones & Teeth
Heart & Calcium Balance
Immune System Support
Daily Energy & Vitality
Muscle Function Support
Strong Bones & Teeth
Heart & Calcium Balance
Immune System Support
Daily Energy & Vitality
Muscle Function Support
Strong Bones & Teeth
Heart & Calcium Balance
Immune System Support
Daily Energy & Vitality
Muscle Function Support
Strong Bones & Teeth
Heart & Calcium Balance
Immune System Support
Daily Energy & Vitality
Muscle Function Support
Strong Bones & Teeth
Heart & Calcium Balance
Immune System Support
Daily Energy & Vitality
Muscle Function Support
Strong Bones & Teeth
Heart & Calcium Balance
Immune System Support
Daily Energy & Vitality
Muscle Function Support
Strong Bones & Teeth
Heart & Calcium Balance
Immune System Support
Daily Energy & Vitality
Muscle Function Support

Why Vitamin D3 + K2 Matters More Than You Think

Vitamin D deficiency is one of the most common nutritional gaps, especially in the UK, where limited sunlight makes it difficult to maintain optimal levels year-round.

Low Vitamin D levels are often linked to fatigue, weakened immunity, and poor overall wellbeing, even if you don’t realise it.

Vitamin D3 plays a key role in helping your body absorb calcium, but without Vitamin K2, that calcium may not be properly utilised.K2 helps direct calcium to your bones, where it’s needed most, instead of allowing it to build up elsewhere in the body.

That’s why Altitude D3 + K2 combines high-strength 4000 IU Vitamin D3 with premium K2 MK-7, alongside Vitamin C and calcium, delivering a more complete, effective daily formula.

šŸ‘‰ Not just absorption, but proper utilisation.

10% off ends tonight at 11:59 PM ( Limited Stock )

Why Vitamin D3 + K2 Matters More Than You Think

Vitamin D deficiency is one of the most common nutritional gaps, especially in the UK, where limited sunlight makes it difficult to maintain optimal levels year-round.

Low Vitamin D levels are often linked to fatigue, weakened immunity, and poor overall wellbeing, even if you don’t realise it.

Vitamin D3 plays a key role in helping your body absorb calcium, but without Vitamin K2, that calcium may not be properly utilised.K2 helps direct calcium to your bones, where it’s needed most, instead of allowing it to build up elsewhere in the body.

That’s why Altitude D3 + K2 combines high-strength 4000 IU Vitamin D3 with premium K2 MK-7, alongside Vitamin C and calcium, delivering a more complete, effective daily formula.

šŸ‘‰ Not just absorption, but proper utilisation.

10% off ends tonight at 11:59 PM ( Limited Stock )

30 Days To Start Feeling The Difference

1 WEEK:

Feel more energised and less run down

  • Noticeable improvement in daily energy
  • Reduced fatigue
  • Feel more refreshed

1 MONTH:

Build consistency in how you feel

  • Stable energy throughout the day
  • Improved physical performance
  • Better immune support
  • Feeling more active

3 MONTHS:

Strengthen your body from within

  • Stronger bones and structural support
  • Optimised calcium use (D3 + K2)
  • Improved overall resilience
  • Sustained vitality

6 MONTHS:

Long-term health, maintained daily

  • Consistent energy and wellbeing
  • Strong foundation for bone health
  • Feel balanced, active, and supported

Daily Support From Within

Built for energy, strength, and long-term health

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Supports Bone Strength

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Supports normal immune function

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Supports Energy & Fatigue

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Supports Muscle Function

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Supports Heart Health

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Optimises Calcium Use

Supports Bone Strength

Helps maintain strong bones & teeth. Vitamin D helps your body absorb calcium, while Vitamin K2 helps direct it to your bones, where it’s needed most.

"I feel much more supported overall, especially with energy and general wellbeing."

ā˜… ā˜… ā˜… ā˜… ā˜…

James L

Verified

Why Choose Altitude D3 + K2

A smarter, more complete daily formula

High Strength 4000 IU Vitamin D3
Includes Premium K2 MK-7
Designed for Proper Calcium Use
Complete Daily Support Formula
Built for Low Sunlight Environments
Quality Checked in the UK
Enhanced Absorption Formula
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Upcart header logo Our Product
Other Products
High Strength 4000 IU Vitamin D3
verified
Includes Premium K2 MK-7
verified
FEW
Designed for Proper Calcium Use
verified
Complete Daily Support Formula
verified
FEW
Built for Low Sunlight Environments
verified
FEW
Quality Checked in the UK
verified
FEW
Enhanced Absorption Formula
verified

Dont Take Our Word For It, Take Our Customers'

Real Stories from customers who love our products.

You got questions we got answers

Find answers to common questions about our products and services.

Most Vitamin D supplements only focus on absorption.

Altitude D3 + K2 combines high-strength 4000 IU Vitamin D3 with premium K2 MK-7, helping your body not only absorb calcium — but use it properly.

šŸ‘‰ A more complete and effective daily formula.

Vitamin D helps your body absorb calcium, while Vitamin K2 helps direct that calcium to your bones.

Without K2, calcium may not be properly utilised in the body.

šŸ‘‰ This combination ensures better balance and long-term support.

Yes — especially in the UK where sunlight exposure is limited for much of the year.

Many people are unknowingly deficient, which can impact energy levels, immunity, and overall wellbeing.

Many people begin to notice changes in energy and overall wellbeing within a few weeks.

For best results, take consistently as part of your daily routine.

Take 1 capsule daily with food.

Each bottle contains 60 capsules (2-month supply).

Yes — this product is suitable for vegetarians and does not contain major allergens.

This product is generally well tolerated when taken as directed.

If you are pregnant, breastfeeding, taking medication, or have a medical condition, consult your healthcare professional before use.

UK delivery typically takes 2–4 working days.

You’ll receive tracking details once your order is dispatched.

We typically dispatch orders the same working day or next working day, depending on the time your order is placed.

Once your order is placed, you should receive a shipping confirmation email, following your order confirmation email.

You can track your order directly through the link on the shipping confirmation email or by entering your tracking numberĀ here.