Best British Supplements Vitamin D of 2025
Last updated on 23/09/2025
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Vitamin D3 K2 and MCT Powder for Superior Absorption | Includes K2VITAL® MK-7 - A Premium Form of K2 | 60 Capsules | 3000iu D3 + 100μg K2 | Love Life Supplements - Premium UK Supplements
LOVE LIFE SUPPLEMENTS
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LOVE LIFE SUPPLEMENTS
Vitamin D3 K2 and MCT Powder for Superior Absorption | Includes K2VITAL® MK-7 - A Premium Form of K2 | 60 Capsules | 3000iu D3 + 100μg K2 | Love Life Supplements - Premium UK Supplements
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Why we love it
- High stability, long-lasting vitamins.
- Enhanced nutrient absorption.
- Clean, filler-free ingredients.
Main Highlights
- 3000iu Vitamin D3 + 100μg K2VITAL Vitamin K2 MK-7
- Blended with Medium Chain Triglyceride (MCT) Powder to Aid Absorption
- K2VITAL - Is a patented form of Vitamin K2 - K2 MK‑7, which is without a doubt the best on the market. It Has Extremely High Stability and Does Not Degrade Over Time.
- 60 Veggie Capsules - 60 Day Supply
- 100% Clean Ingredients. No Nasty Fillers
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Value for Money
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Vitamin D3 5000 IU & Vitamin K2 100mcg (MK-7) x120 Capsules, 4 Month Supply - High Strength Vitamin D & K2 Supplement for Men & Women, Made in The UK by Royal Oak Health
Royal Oak Health
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Royal Oak Health
Vitamin D3 5000 IU & Vitamin K2 100mcg (MK-7) x120 Capsules, 4 Month Supply - High Strength Vitamin D & K2 Supplement for Men & Women, Made in The UK by Royal Oak Health
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Why we love it
- Premium strength for optimal health.
- Enhanced absorption, easy to swallow.
- Providing four months of support.
Main Highlights
- Maximum Strength Vitamin D3: Vitamin D is an essential nutrient our bodies produce naturally following exposure to UVB rays (hence the sunshine vitamin). However, during the winter months it can become difficult to maintain sufficient vitamin D levels. Our daily vegetarian capsules each provide 5,000 IU of Vitamin D3 which is a premium strength dosage suitable men and women.
- Added Vitamin K2 for Optimal Benefits– Royal Oak Health's Vitamin D3 with Vitamin K2 (MK7) capsules are made with Vitamin K2 ((menaquinone-7) which has a longer half-life to provide sustained nutrient release supporting calcium absorption, cardiovascular and bone health.
- Easy to Swallow with Enhanced Absorption - Our vegetarian Vitamin D3 with K2 capsules have been specifically formulated for optimal absorption. Convenient and Effective: Enjoy the convenience of an easy-to-swallow capsule while supporting bone health, immune function, and overall well-being. *Claims substantiated by the EFSA
- All Round Health Support –From Immune system support to bone and joint health. Vitamin D is a key nutrient to keep you feeling and performing your best. It also contributes to normal blood calcium levels, muscle function, and has a role in the process of cell division *Claims substantiated by the EFSA
- 4 Month Supply – Each pot of Pure Cholecalciferol Vitamin D3 & Vitamin K2 MK7 (menaquinone-7) contains x120 capsules providing you with 4 months of high strength nutrient support.
- Award Winning supplements – Founded in 1999 and Winners of the British Made Awards for “Best Food Supplements Manufacturer”. Royal Oak Health produces safe, high quality supplements you can rely on. GMP Certified and Made in Britain every product delivers precisely what is stated on the label
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Vitamin D3 K2 Capsules - High Strength Vitamin D Tablets - 4000 IU VIT D & 100mcg VIT K MK7- UK Made Vegetarian D3 and K2 Vitamins Supplement for Strong Bones, Teeth, Immune System - 120 Capsules
SuperSelf
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SuperSelf
Vitamin D3 K2 Capsules - High Strength Vitamin D Tablets - 4000 IU VIT D & 100mcg VIT K MK7- UK Made Vegetarian D3 and K2 Vitamins Supplement for Strong Bones, Teeth, Immune System - 120 Capsules
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Why we love it
- Supports teeth, bones, immune system.
- Reliable four month supplement supply.
- High quality, vegetarian-friendly formulation.
Main Highlights
- TEETH, BONES & IMMUNE SYSTEM – Vitamin D is well known to contribute to the function of the immune system, blood calcium levels as well as the maintenance of muscles and teeth. Both vitamin D and vitamin K contribute to the maintenance of bones, making them the perfect pairing.
- ️FOUR MONTH SUPPLY – Make taking your vitamins easy, safe and convenient. SuperSelf high strength Vitamin D3 K2 supplement uses the superior cholecalciferol form of vitamin D3 (4000 IU) and the menaquinone MK7 form of vitamin K2 (100µg), so you need just 1 capsule daily. This packet contains 120 capsules, enough for 4 months.
- SUNSHINE IN YOUR HAND – Often known as the sunshine vitamin, vitamin D is an essential vitamin formed when our skin is exposed to sunlight, but many people aren’t getting a full dose every day. As it is hard to get from diet alone, SuperSelf d3 and k2 vitamin capsules provide a reliable, powerful daily dose of these essential nutrients.
- HIGH QUALITY AND RELIABLE – Carefully formulated and manufactured by experts, SuperSelf vitamin D3 K2 tablets have quality built-in. Both the product and manufacturing processes have been tested and certified to meet or exceed British standards. Each capsule is vegetarian and free from GMO, antibiotics, gluten, and dairy.
- A BETTER WAY TO SUPPLEMENT – The SuperSelf team creates supplements and vitamins designed to help you live well for longer. A percentage of profits from this purchase will go to Vitamin Angels, reducing preventable diseases in children under 5 in 70 countries worldwide.
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Dr. Berg Vitamin D3 K2 w/ MCT - Includes 2,000 IUs of Vitamin D3 & 50 mcg MK7 Vitamin K2 - No Added Sugars, Maltodextrin or Corn Syrup - 120 Capsules
Dr. Berg Nutritionals
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Dr. Berg Nutritionals
Dr. Berg Vitamin D3 K2 w/ MCT - Includes 2,000 IUs of Vitamin D3 & 50 mcg MK7 Vitamin K2 - No Added Sugars, Maltodextrin or Corn Syrup - 120 Capsules
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Why we love it
- High-quality, potent ingredient blend.
- Guaranteed satisfaction within 30 days.
- US Certified manufacturing facilities.
Main Highlights
- 𝗔𝗡 𝗢𝗥𝗜𝗚𝗜𝗡𝗔𝗟 𝗩𝗜𝗧𝗔𝗠𝗜𝗡 𝗗𝟯 𝗔𝗡𝗗 𝗞𝟮 - This Vitamin D3 K2 supplement is loaded with 2,000 IUs of Vitamin D3 and 50 mcg of Vitamin K2 MK-7. It also includes a unique blend of Vitamin B6 and MCT - Includes 120 capsules. Customers are responsible for any customs fees for orders placed outside the UK.
- 𝗨𝗦𝗔 𝗚𝗠𝗣 𝗖𝗘𝗥𝗧𝗜𝗙𝗜𝗘𝗗 𝗠𝗔𝗡𝗨𝗙𝗔𝗖𝗧𝗨𝗥𝗜𝗡𝗚 - Our state-of-the-art manufacturing facilities are located in the US and are staffed with highly trained individuals who formulate superior products. Being certified under US laws and regulations (GMP Certified), these facilities are uncompromising when it comes to cleanliness and quality control.
- 𝗜𝗡𝗖𝗥𝗘𝗗𝗜𝗕𝗟𝗘 𝗜𝗡𝗚𝗥𝗘𝗗𝗜𝗘𝗡𝗧𝗦 - We're sorry to say it, but if you’re looking for cheap, you’re in the wrong place. We search far and wide, domestic and international, to provide high-quality ingredients for which your body will thank you. Unfortunately, getting the best ingredients from domestic and international farms can come at a higher-than-normal cost. If quality, satisfaction, and results are essential to you, you’re in the right place!
- 𝗪𝗛𝗬 𝗪𝗘’𝗥𝗘 𝗗𝗜𝗙𝗙𝗘𝗥𝗘𝗡𝗧 - Also known as The Knowledge Doc, Dr. Berg has spent most of his life researching and providing natural solutions to everyday health problems. This extensive research and thousands of hours working with patients are what sets us apart from other brands, as it has allowed us to create proprietary blends you can’t get anywhere else.
- 𝟯𝟬-𝗗𝗔𝗬 𝗚𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲 - If for any reason you're not happy with the results you experience within the first 30 days, we're happy to give you a full refund! Send us a message, and the refund will be processed as long as it's requested within 30 days of purchase.
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Thorne Vitamin D-1000 - Vitamin D3 Supplement (1,000 IU) for Healthy Bones and Muscles - 90 Capsules
THORNE
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THORNE
Thorne Vitamin D-1000 - Vitamin D3 Supplement (1,000 IU) for Healthy Bones and Muscles - 90 Capsules
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Why we love it
- Supports immune system.
- Better D3 absorption.
- Purest ingredients guaranteed.
Main Highlights
- Support your Immune System: Get the vitamin that supports healthy teeth, bones, and muscles, as well as immune function
- Vitamin D3: Vitamin D, in its D3 form, is more potent and better absorbed form than its D2 form. Be sure you get the vitamin D your body needs with Thorne’s easily absorbed Vitamin D
- Sunshine Vitamin: Although it is well known that direct sunlight triggers the body's production of vitamin D, many individuals, especially the elderly, don’t get enough vitamin D from sunlight or from their diet
- Protect Against Vitamin D Deficiency: Anyone who lives in the northern latitudes, or has a darker skin tone, could be at risk of vitamin D deficiency. Also, people who engage in indoor athletics rather than outdoor sports or who regularly wear sunscreen
- Our Mission: We believe personalised, scientific wellness can extend the duration of one's health span, create happier and healthier lives, and feel one’s best at every age and life stage
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Vitamin D3 4000 iu & Vitamin K2 MK7 100μg - 1 Year Supply, 365 Easy-Swallow Vitamin D3 K2 Tablets, 1-A-Day High Strength Vegetarian D3 and K2 Vitamin Supplements, UK Made Vitamin D Tablets
Nutrition Geeks
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Nutrition Geeks
Vitamin D3 4000 iu & Vitamin K2 MK7 100μg - 1 Year Supply, 365 Easy-Swallow Vitamin D3 K2 Tablets, 1-A-Day High Strength Vegetarian D3 and K2 Vitamin Supplements, UK Made Vitamin D Tablets
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Why we love it
- Year-long supply in a pouch.
- Optimal absorption and efficacy.
- Sustainably delivered, allergen free.
Main Highlights
- Why Choose Nutrition Geeks Vit D3 K2: Get 2X more than other brands with a year's supply of 365 tablets in a pouch. Each tablet combines Vitamin D 4000 iu with 100μg of K2. Vit D is crucial for bone health and immune support, while Vitamin K2 ensures calcium is deposited in your bones and not the arteries. Our Vitamin D3 and K2 high strength formula is designed for optimal absorption and efficacy.
- Easy to Swallow With No Aftertaste: Our Vitamin D K2 tablets have been uniquely formulated to be just 6mm in diameter - so small you won't even notice when you swallow them!
- Letterbox Friendly and Great Value for Money: Our slim packaging makes our Vitamin D and K2 easy to store and cost-effective to post unlike other bottled high strength vitamin d & K2 vitamin supplements including vitamin d spray & vitamin d drops.
- Vegetarian Vitamin D3 Tablets & Allergen Free: We understand the importance of providing vitamin d supplements that cater to everyone's needs; are sourced & produced ethically AND at an accessible price to customers. Our tablets are Gluten-free, Dairy-free, Cruelty-free.
- Scientifically Proven Supplements Uncomplicated, So You Can Get The Most Out of Life. Accessible to Everyone. Delivered To You Sustainably: Good health is a need not a want. We are on a mission to make quality, science backed nutrition sustainably accessible to everyone. Less plastic, less waste. We have also committed to be the UK's leading sustainable supplement provider with a Net Zero target.
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Nutrition Geeks, Vitamin D 4000 iu - 1 Year Supply, 365 Easy-Swallow Tablets Vegetarian D3 iu, High Strength Supplet UK Made VIT & Vitamins Awarded by The Independent
Nutrition Geeks
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Nutrition Geeks
Nutrition Geeks, Vitamin D 4000 iu - 1 Year Supply, 365 Easy-Swallow Tablets Vegetarian D3 iu, High Strength Supplet UK Made VIT & Vitamins Awarded by The Independent
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Why we love it
- Boosts immunity and supports health.
- Easy to swallow tablets.
- Sustainable and ethically sourced.
Main Highlights
- 12 Month Supply of Vitamin D3 tablets Made by British PhD Geeks: Each pouch contains 365 vit d3 4000 iu tablets that are scientifically proven to support your immune system making it harder for colds and flu to enter the body. Vitamin D also supports healthy bones, muscles & teeth.
- Easy to Swallow With No Aftertaste: Our vitamin d high strength tablets have been uniquely formulated to be just 6mm in diameter - so small you won't even notice when you swallow them! Although smaller, Nutrition Geeks' Vitamin D3 provides 4000iu (2000% NRV) per tablet, providing maximum support when Vitamin D 1000iu tablets aren't enough.
- Letterbox Friendly and Space Saving: Nutrition Geeks' vitamins come in flat pack packaging, saving on costly postage and storage fees associated with other bottled vitamin d gummies / tablets, vitamin d spray or vitamin d drops.
- Vegetarian Friendly, Gluten-free, Dairy-free, Cruelty-free, Low Carbon Footprint: We understand the importance of providing immune support vitamins that caters to everyone's needs; are sourced & produced ethically AND accessible to all customers. There is no need to go anywhere else for your nutrition needs!
- Scientifically Proven Supplements Uncomplicated, So You Can Get The Most Out of Life. Affordable For Everyone. Delivered To You Sustainably Good health is a need not a want. We are on a mission to make quality, science backed nutrition sustainably accessible to everyone. Less plastic, less waste. We have also committed to be the UK's leading sustainable supplement provider with a Net Zero target by 2025.
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Vitamin D 4,000 IU Tablets, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Tablets - Full Year Supply
Vita Premium
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Vita Premium
Vitamin D 4,000 IU Tablets, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Tablets - Full Year Supply
15% OffFree Shipping
Why we love it
- Powerful vitamin D3 dosage.
- Vegetarian and allergen-free formulation.
- One-year supply for convenience.
Main Highlights
- High Potency Vitamin D3 (4,000 IU): Provides a powerful dose of vitamin D3 to help maintain healthy bones, teeth, muscles, and support immune function.
- Vegetarian and Allergen-Free: Specially formulated for vegetarians, free from common allergens including gluten, wheat, soya, and dairy.
- One-Year Supply: Convenient bottle of 365 tablets means no need for frequent reordering, ensuring consistent daily supplementation for a full year.
- UK Quality Assurance: Manufactured in the UK following strict GMP standards, ensuring premium quality and purity with no GMOs, artificial flavors, or colors.
- Supports Vitamin D Deficiency: Designed to support those who need to boost their vitamin D levels, especially in regions with limited sunlight exposure.
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Vitamin D3 4000IU | 400 Tablets | 1+ Year Supply | 6mm Micro Vitamin D Tablets | Easy to Swallow VIT D | One A Day Supplement | Made in The UK | Magnesium Stearate-Free | Vegetarian Friendly
WeightWorld
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WeightWorld
Vitamin D3 4000IU | 400 Tablets | 1+ Year Supply | 6mm Micro Vitamin D Tablets | Easy to Swallow VIT D | One A Day Supplement | Made in The UK | Magnesium Stearate-Free | Vegetarian Friendly
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Why we love it
- Supports overall health and wellness.
- Promotes bone, joint, and immune health.
- Vegetarian-friendly and gluten-free.
Main Highlights
- LONG-LASTING SUPPLY: Limited sunlight can affect daily Vitamin D levels, especially during colder months or indoor lifestyles. Each tablet provides 4000IU of Vitamin D3, making it a practical option when natural sources of this vitamin are limited. Each bottle contains 400 vitamin D tablets, lasting for 14 months (1+ year supply). Just take 1 Vitamin D 4000IU tablet a day!
- Cholecalciferol – A Widely Used Form of Vitamin D3: Vitamin D is naturally produced through biological processes in response to sunlight and is found in specific dietary sources such as oily fish, mushrooms, and eggs. However, meeting daily requirements through sun exposure and diet alone can be challenging. Sourced from Lanolin, cholecalciferol is a naturally occurring form of Vitamin D3 and is known for its bioavailability.
- ONE TABLET, MULTIPLE FUNCTIONS: Vitamin D contributes to normal blood calcium levels. Vitamin D contributes to the maintenance of normal bones. Vitamin D contributes to the maintenance of normal muscle function. Vitamin D contributes to the maintenance of normal teeth. Along with this, Vitamin D contributes to the normal function of the immune system (EFSA Claims).
- VEGETARIAN AND FREE FROM ADDITIVES: This Vitamin D3 Supplement from WeightWorld is entirely vegetarian and free from GMO's and harmful additives. Unlike traditional supplements, these specially formulated Vitamin D3 tablets are designed to provide crucial nutrients for a holistic routine. Manufactured in the UK under GMP standards, each 6mm tablet is magnesium stearate-free and easy to swallow.
- TRUSTED FOR HEALTH SINCE 2006: A British-grown family business with over a decade of experience, offering a range of over 200 vitamins, supplements, and devices. All products are developed through thorough research, adhering to GMP standards, and crafted in the UK to meet diverse nutritional requirements. Suitable for vegans and vegetarians, they are formulated to provide a wholesome approach to living.
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Vitamin D 4,000 IU Softgels, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Softgels (Not Tablets) - Full Year Supply
Vita Premium
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Vita Premium
Vitamin D 4,000 IU Softgels, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Softgels (Not Tablets) - Full Year Supply
62% OffFree Shipping
Why we love it
- Strong vitamin D supplement available.
- Created with no artificial ingredients.
- Full year's supply provided.
Main Highlights
- MAXIMUM STRENGTH - Our Vitamin D supplement offers 4,000 IU per softgel to give you more of the "sunshine vitamin" your body needs.
- NO ARTIFICIAL INGREDIENTS - MADE IN THE UK. We care about how your vitamins are made and what's in them. Vitamin D3 from Vita Premium is manufactured with zero artificial ingredients, right here in the UK to the highest manufacturing standards in the world.
- FULL YEAR'S SUPPLY - Take just one 4,000 IU Vitamin D3 softgel per day – no need to remind yourself to take multiple tablets throughout the day. For your convenience, each bottle includes 365 softgels. This gives you a full year's supply, so you won't need to re-order again for at least a year.
- EFFECTIVE SOLUTION FOR VITAMIN D DEFICIENCIES. In addition to providing a healthy Vitamin D balance for adults, Vitamin D3 from Vita Premium may also be ideal for those who are deficient in Vitamin D. According to the National Institute for Health & Care Excellence (NICE ), approximately 10 million people in England alone are low in Vitamin D and are advised by medical professionals to consider taking a daily supplement.
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