Vitamin D3 & K2
Strengthen bones and immunity while directing calcium away from arteries
★★★★★
Nutri Tailor 4.6/5 "Excellent" on Trustpilot
90 capsules
30 day supply
per day
Guaranteed additive free
Highest purity
Therapeutically effective
★★★★★ "I won't go back to high street supplements. The difference in quality is something you can actually feel." Susie
Have questions about Vitamin D3 & K2?
"My vitamin D levels are low. How much should I take to bring them up?"
"Why do I need K2 with my vitamin D? Can't I just take D3 on its own?"
"I'm on warfarin. Is the K2 in this safe for me?"
Get tailored guidance from Nutri365, your personal AI health expert.
★★★★★ "Finally, something that tells you what you actually need." Sarah
Strengthen bones and immunity while directing calcium away from arteries
Vitamin D3 and K2 work together to support bone density, immune function and cardiovascular health. Vitamin D3 enhances calcium absorption from the digestive system, while K2 directs that calcium into bones and teeth and away from soft tissues such as arteries.
Each capsule provides 2500 IU of vitamin D3 as cholecalciferol, the same form your skin produces in response to sunlight. Research consistently shows D3 is more effective than D2 (ergocalciferol) at raising and maintaining blood levels of vitamin D.
The K2 in this formula is all trans MK 7, the most active and longest lasting form of vitamin K2. MK 7 remains active in the body for up to 72 hours, compared to just a few hours for the MK 4 form, which means it provides sustained support throughout the day.
In the UK, limited sunlight between October and March means most people do not produce enough vitamin D during the winter months. Public Health England recommends supplementation during this period. Many nutritional therapists advise year round use for those who spend most of their time indoors.
Vitamin D requires adequate magnesium to be properly activated in the body. If you are taking vitamin D at a higher dose, ensuring your magnesium intake is sufficient will help you get the most from it.
Key benefits:
- Stronger bones calcium goes where needed
- Year round immune resilience
- K2 supports arteries from calcium
| Each capsule contains: | %NRV* | |
|
Vitamin D3 (2500 IU)
|
62.5 mcg |
1250% |
|
Vitamin K2
|
200 mcg | 267% |
† Nutrient Reference Value (NRV*) not established
Directions for use:
Take 3 capsules once per day with dinner.
Vitamin D is fat soluble, so taking it with a meal that contains dietary fat improves absorption by 30 to 50%. Evening dosing with your main meal is generally the most practical approach.
At 3 capsules per day, this provides 7500 IU of vitamin D3 alongside 600 mcg of vitamin K2. This is a beneficial level of vitamin D, appropriate for those looking to maintain optimal levels or correct a shortfall.
If you are unsure of your current vitamin D status, a blood test for 25(OH)D through your GP or a home testing service is the most reliable way to check. This can help you and your healthcare practitioner determine whether a higher or lower dose is right for your needs.
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Suitable for men.
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Suitable for women.
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Suitable for people under sixteen years of age.
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If pregnant or breastfeeding consult your healthcare professional before purchasing and consuming this product.
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Suitable for vegetarians.
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Not suitable for vegans.
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No gluten containing ingredients.
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No nut containing ingredients.
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No dairy containing ingredients.
If you are taking medication consult your prescribing physician before purchasing and consuming supplements.
Store in a cool dry place.
Keep out of reach of children.
Information displayed does not constitute medical advice.
This product should not be used as a substitute for a varied diet.
Once opened, consume within 3 months.
Quality promise
Why clinical grade matters
- ✓ GMP certified, pharmaceutical grade manufacturing
- ✓ Made in UK cleanroom facilities, ISO 9001 & ISO 14001 accredited
- ✓ No fillers, binders or additives — only active ingredients
- ✓ Fully traceable from raw material to finished product
- ✓ Non-GM, non-irradiated, 100% green energy manufacturing
Evidence
What the research shows
Our Health Reference Library is an ever-growing collection of peer-reviewed research and health guidance.
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I've struggled to find supplements that work for me. I was excited about the launch of Nutri Tailor. All of their knowledge is distilled into the symptom specific plans so there is no need to do hours of research before buying. The customer support has been incredible. Would highly recommend this site to anyone who is looking to enhance their health or manage symptoms through more holistic practices.
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Why nutri Tailor?
Nutri Tailor makes supplements make sense, but what does this mean?
Positive health results come from combining high-quality supplements with expert guidance.
We only stock clinical-grade, additive-free supplements selected by experienced nutritional therapists.
Nutri365, our AI health expert, gives you personalised advice to find exactly what your body needs.
How we're different
What sets us apart
Everything you need in one place
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Nothing but the best
Our range of supplements are clinical grade and additive-free.
Expertise you can trust
All our guidance is grounded in peer-reviewed, academically validated research.
Trusted by professionals
Recommended by nutrition experts
In an ideal world, everyone would get their supplement advice from a nutrition professional. Unfortunately, this is not always possible.
This is where Nutri Tailor comes in as it is the only platform to combine expert advice with showing you which supplements are the highest quality in the most effective combination.
Kasia Key
Registered Associate Nutritionist (ANutr), MSc Nutritional Medicine
Frequently asked questions
Why take Vitamin D3 & K2?
Vitamin D3 & K2 supports bone health, immune function, and mood regulation.
How much vitamin D do I need?
Most adults benefit from 2000-4000 IU daily, depending on blood levels.
When should I take vitamin D?
Take with your largest meal containing fat for best absorption.
Can I take too much vitamin D?
Yes, vitamin D is fat-soluble. Get your levels tested and work with a practitioner to find your optimal dose.
Why is vitamin D paired with K2?
Vitamin K2 helps direct calcium to bones rather than arteries. They work synergistically for bone and cardiovascular health.
How do I know if I am deficient?
A blood test is the only reliable way to know. Symptoms of deficiency include fatigue, low mood, frequent illness, and bone pain.
