Ultra High Quality Supplements for a Healthy, Happy Life - Made in the UK
Ultra High Quality Supplements for a Healthy, Happy Life - Made in the UK
Living in Bristol gives you so many rainy days that it's hard to actually get the joy of sunlight. I’ve been taking this Advanced D3 + K2 supplement now for more than two months to supply myself (also gave some to my wife) with vitamin D. I feel a definite improvement on my health. I feel I'm less sluggish and less fatigued.
Rickie Hollis *
(Results may vary from person to person.)
Since taking Advanced D3 + K2 I notice that I have more energy to move about and feels it help w/ my exhaustion which is great given my high maintenance job. This feels like a miracle, I feel much, much better! I recommend these to friends since they are also holed up in offices and homes that we're virtually not getting enough sun.
Edith Duncan *
(Results may vary from person to person.)
Vitamin D is possibly nature's most important vitamin, especially for those with chronic health conditions (where a deficiency is associated with flares, fatigue and poor general health). Vitamin K reduces calcification that may happen when vitamin D level in the body is unregulated. This makes Vitamin K a must-have partner when taking vitamin D supplements.
Advanced D3 + K2 provides you with vitamin D and vitamin K in its most absorbable form and is produced to the highest possible manufacturing standards, meaning you are assured of its quality. No need to have the trouble of taking two different supplements when Advanced D3 + K2 does it all to have a healthy bone metabolism.
⭐⭐⭐⭐⭐5.0
Free shipping for UK over £50
Flat shipping rate for International £7
90-days money back guarantee.
Vitamin D is thought by most health experts to be the most important vitamin for those with chronic health conditions.
However, a deficiency in this vitamin is incredibly common, with some studies estimating that 1 billion people worldwide have is vitamin D-deficient, while 50 % of the population is vitamin D-insufficient. As such, it's considered to be a major global health issue.
This deficiency occurs because we get the majority of our vitamin D from the sun. Therefore, those of us who live in less sunny climates (such as the UK) are very likely deficient unless we use appropriate supplementation.
Vitamin D plays a critical role in many areas of our health.
Vitamin K is a must-have vitamin supplement when taking vitamin D for better immunity response and reduced risks of chronic illnesses.
Unregulated levels of vitamin D may lead to calcification of blood vessels, which may cause blood clots and heart diseases. Because of this, vitamin K is just the right partner for vitamin D as it is responsible for:
Vitamin K is a must-have vitamin supplement when taking vitamin D for better immunity response and reduced risks of chronic illnesses.
Unregulated levels of vitamin D may lead to calcification of blood vessels, which may cause blood clots and heart diseases. Because of this, vitamin K is just the right partner for vitamin D as it is responsible for:
Order Advanced D3 + K2 now with confidence!
We take your privacy and security very seriously. We use a completely secure payment service, we never store your payment card details, and we never pass on your information to marketers.
To place your secure order, simply choose your Advanced D3 + K2 product below and click on the blue "Buy Now" button.
When you select your Advanced D3 + K2 product and click “Add to Basket”, you’ll be taken to our checkout page. There, you’ll be able to securely enter your delivery and payment details, and you’ll get a chance to review your order before it’s final.
We will send you an email to confirm your order is on the way. For UK, Ireland, and Europe orders, we usually dispatch within 24 hours and we send most of our orders via Royal Mail, which means your products should arrive within 2-5 working days. For international orders, delivery may take 6-15 working days. To know more about dispatch, delivery rates, and return policies, please click here.
We genuinely believe that Advanced D3 + K2 has a huge number of potential benefits and we’re confident you’re going to love it. However, remember that if you’re not delighted for any reason, you can return your product for a full, no-questions-asked refund within 90 days.
Click on the button below to place your 100% risk-free order of Advanced D3 + K2 now!
The Autoimmune Institute is a family-run, UK-based company founded by health specialists.
We provide market-leading, high-quality, pure and effective natural health supplements to people who want to live healthy, happy lives on their own terms.
We started our business because we found that the overall quality and effectiveness of the supplements on the market simply wasn’t good enough. We wanted to change that.
We believe that good health is the most important thing you can have, and unlike many companies, we will never offer you second-rate supplements. We only sell you products we would be happy to give to our own families (and we do!).
When it comes to creating our supplements, we are involved in every step of the process, from research to sourcing to manufacturing to delivery.
That’s how we know that Advanced D3 + K2 is made to the highest standards of quality, safety and effectiveness, and that’s why we’re proud to say that we believe it’s the best supplement on the market.
We’re so confident that you’ll love Advanced D3 + K2 that we offer a 90-day money-back guarantee, no questions asked. Order yours now, risk-free!
WHEN SHOULD I TAKE ADVANCED D3 + K2?
Because we've contained Advanced D3 + K2 within an easy swallow tablet, it can be taken at any time of day with any type of food or drink. For greater effectiveness, we suggest taking it with high-fat meals, as both D3 & K2 are fat-soluble vitamins.
HOW MANY POTS SHOULD I ORDER?
There is a large amount of research available showing the huge importance of vitamin D supplementation on your health, gut, bones, heart, and immune system. Therefore, we believe that the majority of people would benefit from using this product daily, on an ongoing basis, especially if you aren’t regularly getting full body exposure to the sun (which in the UK is practically impossible for much of the year). With that said, you will save money today taking advantage of our special 3 and 6 bottle discounted packages. These also allow you to take advantage of up to 20% savings, without the worry of increasing prices and/or the addition of postage fees later on. And you’re completely protected by our 90 day moneyback guarantee.
HOW DO I USE THIS PRODUCT?
Adults, take 1 capsule daily. Do not exceed recommended daily dose.
WHAT IS THE SIZE OF THE CAPSULE?
Advanced D3 + K2 capsule is 19.4mm long (HPMC #1), which is about the length of a 5p coin.
ARE THERE ANY ALLERGY CONCERNS WITH THIS PRODUCT?
Advanced D3 + K2 is GMP quality assured, and has no sugar, artificial sweeteners, flavours, colours or preservatives added. It’s also gluten free, dairy free, soy free, and non-GMO. However, if you have any concerns, you should consult your doctor prior to taking any supplement.
WHO SHOULD USE THIS PRODUCT? IS IT OK TO TAKE IF I HAVE A MEDICAL CONDITION?
Advanced D3 + K2 is considered safe and extremely effective for nearly everyone. However, we always recommend that if you take prescription medications, have a medical condition, or are pregnant or breastfeeding then you show a bottle to your doctor and/or pharmacist for proper approval prior to using it. This product should not be viewed as being something to treat, diagnose, prevent or cure disease or symptoms in any way. This is NOT a medicinal product. You should not take food supplements as a substitute for a varied balanced diet or healthy lifestyle. Side-effects from this supplement are rare but please discontinue use and contact your GP immediately in the event of an adverse reaction. Keep out of reach of children. Store in a cool, dry place. Do not use if seal under cap is broken or missing.
WHERE CAN ADVANCED D3 + K2 BE DELIVERED?
This product is available to residents in the UK, Ireland, the rest of Europe and other international countries.
HOW MUCH DOES DELIVERY COST?
Find the latest shipping rates and details here.
HOW WILL THIS PRODUCT BE DELIVERED TO ME AND HOW QUICKLY?
We will deliver your order directly to your home or office by Royal Mail. This typically takes 3-5 working days for orders in UK, Ireland, and the rest of Europe, but this can vary. For international orders, delivery may take 6 to 15 working days.
IS IT SAFE TO ORDER ONLINE THROUGH YOUR WEBSITE?
Yes. We use a secure shopping cart where 100% of your data is encrypted, safe and secure. Our secure cart is protected by numerous third party security verification systems, so you can rest assured that your information is completely safe and secure at all times.
WHERE ARE YOU BASED?
We are based in the UK (in Essex), and deliver to customers all over Europe and other international countries. Our products are manufactured in the UK.
IS THIS A ONE-TIME ORDER OR WILL I BE PUT ON AN AUTOMATIC SUBSCRIPTION?
This is a one time, one-off order. We obviously hope you love the product and come back to us when you want to order some more. We certainly aren’t like other supplement companies who often put people on to a subscription without making it obvious to them. You will only receive what you intentionally ordered, and nothing extra.
However, if you would prefer to be on a subscription (so you don’t need to remember to reorder each month) then just get in touch and we can help set that up for you.
© 2025 Autoimmune Institute.
71-75 Shelton Street Covent Garden, London WC2H 9JQ United Kingdom. Wellness Autoimmune Ltd. All rights reserved.