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Best Strong Vitamin D Tablets High Strength of 2026
Last updated on 02/04/2026
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1
Vitamin D Tablets 4000IU, Vitabiotics Ultra
Vitabiotics Ultra
30% Off
Why we love it
High-strength vitamin D3 supplement.
Supports bone and immune health.
Convenient daily tablet form.
Main Highlights
Easy Swallow Size
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9.8
Exceptional
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9.8
Exceptional
Vitabiotics Ultra
Vitamin D Tablets 4000IU, Vitabiotics Ultra
30% Off
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Why we love it
High-strength vitamin D3 supplement.
Supports bone and immune health.
Convenient daily tablet form.
Main Highlights
Easy Swallow Size
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Value for Money
2
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
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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9.7
Exceptional
Check Price
9.7
Exceptional
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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Show More
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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3
Vitamin D3 4000IU - 1+ Year Supply - 400 Tablets - Easy to Swallow 6mm Micro Vitamin D Tablets - Gentle Cholecalciferol Form - Vegetarian-Friendly VIT D Supplement - 1 per Day - Made in the UK
WeightWorld
25% Off
Why we love it
Supports overall health and wellness.
Promotes bone, joint, and immune health.
Vegetarian-friendly and gluten-free.
Main Highlights
400 TABLETS - 1+ YEAR SUPPLY: Limited sunlight can affect daily Vitamin D levels, especially during colder months or for those with predominantly indoor lifestyles. Each tablet provides 4000IU of Vitamin D3, making it a practical option when natural sources are limited. Each bottle contains 400 vitamin D tablets, lasting for 14 months (1+ year supply). Simply take 1 Vitamin D 4000IU tablet per day to suit a modern, busy lifestyle.
CHOLECALCIFEROL – GENTLE 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 known for its bioavailability.
VITAMIN D GOODNESS: Stay on track with vitamin D supplement for adults. 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. Vitamin D contributes to the normal function of the immune system (EFSA Claims).
VEGETARIAN AND GLUTEN-FREE: This Vitamin D3 supplement from WeightWorld is entirely vegetarian and free from GMOs and gluten. Moreover, these specially formulated vitamin D3 tablets are designed to deliver key elements in a clean format. Manufactured in the UK under GMP standards, each 6mm tablet is magnesium-stearate-free and easy to swallow.
THE JOURNEY OF WEIGHTWORLD: Born from a passion for food supplements, WeightWorld has been growing since 2006. With nearly two decades of experience, the brand offers a wide range of products, including vitamins, minerals, plant-based supplements, devices, and more. Now reaching multiple countries, the focus remains on developing products that evolve with changing needs while staying true to the values that started it all.
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9.6
Superb
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9.6
Superb
WeightWorld
Vitamin D3 4000IU - 1+ Year Supply - 400 Tablets - Easy to Swallow 6mm Micro Vitamin D Tablets - Gentle Cholecalciferol Form - Vegetarian-Friendly VIT D Supplement - 1 per Day - Made in the UK
25% Off
Check Price
Show More
Why we love it
Supports overall health and wellness.
Promotes bone, joint, and immune health.
Vegetarian-friendly and gluten-free.
Main Highlights
400 TABLETS - 1+ YEAR SUPPLY: Limited sunlight can affect daily Vitamin D levels, especially during colder months or for those with predominantly indoor lifestyles. Each tablet provides 4000IU of Vitamin D3, making it a practical option when natural sources are limited. Each bottle contains 400 vitamin D tablets, lasting for 14 months (1+ year supply). Simply take 1 Vitamin D 4000IU tablet per day to suit a modern, busy lifestyle.
CHOLECALCIFEROL – GENTLE 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 known for its bioavailability.
VITAMIN D GOODNESS: Stay on track with vitamin D supplement for adults. 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. Vitamin D contributes to the normal function of the immune system (EFSA Claims).
VEGETARIAN AND GLUTEN-FREE: This Vitamin D3 supplement from WeightWorld is entirely vegetarian and free from GMOs and gluten. Moreover, these specially formulated vitamin D3 tablets are designed to deliver key elements in a clean format. Manufactured in the UK under GMP standards, each 6mm tablet is magnesium-stearate-free and easy to swallow.
THE JOURNEY OF WEIGHTWORLD: Born from a passion for food supplements, WeightWorld has been growing since 2006. With nearly two decades of experience, the brand offers a wide range of products, including vitamins, minerals, plant-based supplements, devices, and more. Now reaching multiple countries, the focus remains on developing products that evolve with changing needs while staying true to the values that started it all.
Show More
4
Vitamin D 4,000 IU Tablets, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Tablets - Full Year Supply
Vita Premium
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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9.4
Superb
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9.4
Superb
Vita Premium
Vitamin D 4,000 IU Tablets, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Tablets - Full Year Supply
Check Price
Show More
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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5
Vitamin D 4,000 IU Softgels, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Softgels - Full Year Supply
Vita Premium
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.
Vita Premium Vitamin D3 Softgels: Easy-to-swallow softgels providing daily Vitamin D3 support for healthy bones, muscles, and immune function.
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9.3
Superb
Check Price
9.3
Superb
Vita Premium
Vitamin D 4,000 IU Softgels, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Softgels - Full Year Supply
Check Price
Show More
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.
Vita Premium Vitamin D3 Softgels: Easy-to-swallow softgels providing daily Vitamin D3 support for healthy bones, muscles, and immune function.
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6
Zipvit Vitamin D3 4000 IU, 360 Maximum Strength Vitamin D Tablets, 12 Months Supply, Vegetarian, 1 a Day, VIT D3 As Cholecalciferol, Supports Bones Muscles, Immune System
Zipvit
Why we love it
High strength Vitamin D supplement.
Perfect for Vegetarians.
Supports immune system.
Main Highlights
Why Take Vitamin D3 Tablets? Living in the UK means sunny days are rare, which is why supplementing Vitamin D is essential for your overall health. It helps your body maintain strong bones, supports your immune system, and aids muscle function. Many people struggle to get enough Vitamin D naturally from sunlight or food, especially during winter or if they spend a lot of time indoors. Our high strength vitamin d3 4000iu tablets are a simple way to make sure your body gets the support it needs every day.
Essential Support for Your Bones, Muscles and Immune System: Known as the "sunshine vitamin," Vit d3 helps maintain strong and healthy bones by contributing to calcium absorption, which is crucial for bone density and strength. It also plays a key role in keeping your muscles functioning properly, supporting mobility and reducing the risk of weakness as you age. Additionally, Vit d is vital for your immune system, helping it work effectively to protect your body and keep you feeling your best year-round.
Vegetarian Friendly: Our tablets are vegetarian-friendly and free from gluten, GMOs, dairy, and wheat, making them an excellent choice for those following a vegetarian diet. Our tablets are easy to swallow and require one tablet daily, simplifying your health routine. Each pouch provides a 12-month supply, offering great value and consistent support for your well-being.
Trusted for 25 Years: For 25 years, Zipvit has been a trusted name in health and wellness. We are committed to quality, transparency, and affordable pricing. Trusted by millions, we support your health journey every step of the way.
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9.2
Superb
Check Price
9.2
Superb
Zipvit
Zipvit Vitamin D3 4000 IU, 360 Maximum Strength Vitamin D Tablets, 12 Months Supply, Vegetarian, 1 a Day, VIT D3 As Cholecalciferol, Supports Bones Muscles, Immune System
Check Price
Show More
Why we love it
High strength Vitamin D supplement.
Perfect for Vegetarians.
Supports immune system.
Main Highlights
Why Take Vitamin D3 Tablets? Living in the UK means sunny days are rare, which is why supplementing Vitamin D is essential for your overall health. It helps your body maintain strong bones, supports your immune system, and aids muscle function. Many people struggle to get enough Vitamin D naturally from sunlight or food, especially during winter or if they spend a lot of time indoors. Our high strength vitamin d3 4000iu tablets are a simple way to make sure your body gets the support it needs every day.
Essential Support for Your Bones, Muscles and Immune System: Known as the "sunshine vitamin," Vit d3 helps maintain strong and healthy bones by contributing to calcium absorption, which is crucial for bone density and strength. It also plays a key role in keeping your muscles functioning properly, supporting mobility and reducing the risk of weakness as you age. Additionally, Vit d is vital for your immune system, helping it work effectively to protect your body and keep you feeling your best year-round.
Vegetarian Friendly: Our tablets are vegetarian-friendly and free from gluten, GMOs, dairy, and wheat, making them an excellent choice for those following a vegetarian diet. Our tablets are easy to swallow and require one tablet daily, simplifying your health routine. Each pouch provides a 12-month supply, offering great value and consistent support for your well-being.
Trusted for 25 Years: For 25 years, Zipvit has been a trusted name in health and wellness. We are committed to quality, transparency, and affordable pricing. Trusted by millions, we support your health journey every step of the way.
Show More
7
WeightWorld Vitamin D3 4000IU & K2 125μg (MK7) | 365 VIT D Tablets | 1 Year Supply | Easy to Swallow VIT D (6mm in Size) | 1 per Day | Cholecalciferol Form | Vitamin D3 K2 Supplements
WeightWorld
Why we love it
High strength for better absorption.
Provides 8-month vitamin supply.
Enhances immunity, joints and muscles.
Main Highlights
DAILY DOSE OF VITAMIN D3 K2: Looking for an effective way to get enough Vitamin D and K2? Look no further, as WeightWorld's Vit D supplement offers Vitamin D3 4000 IU (as cholecalciferol) with 125mcg of Vitamin K2 (menaquinone) for optimal absorption. Experience a more natural way of living with WeightWorld's Vitamin D tablets.
365 MICRO-TABLETS: Each bottle contains 365 easy-to-swallow 6 mm micro Vitamin D3 & K2 tablets, enough for a full year. While sunlight is a common source of Vitamin D, maintaining optimal levels can be challenging due to lifestyle factors. Take 1 micro tablet daily to meet the recommended intake of both D3 and K2.
LEVEL UP WITH VITAMIN D3 K2 SUPPLEMENTS: Vitamin D contributes to the maintenance of normal muscle function. Vitamin D contributes to normal blood calcium levels. Vitamin K contributes to the maintenance of normal bones. Vitamin D contributes to the normal function of the immune system. Vitamin K contributes to normal blood clotting (EFSA Approved Claims). The added Vitamin K2 MK7 works alongside Vitamin D for optimal nourishment.
VEGETARIAN AND NON-GMO: WeightWorld’s Vitamin D3 K2 Tablets are vegetarian-friendly and made without GMOs or magnesium stearate. These vit D tablets are manufactured using carefully selected ingredients in accordance with GMP guidelines. Each batch delivers a clean Vitamin D & Vitamin K2 supplement suitable for every lifestyle.
THE JOURNEY OF WEIGHTWORLD: Born from a passion for food supplements, WeightWorld has been growing since 2006. With nearly two decades of experience, the brand offers a wide range of products, including vitamins, minerals, plant-based supplements, devices, and more. Now reaching multiple countries, the focus remains on developing products that evolve with changing needs while staying true to the values that started it all.
Show More
9.0
Superb
Check Price
9.0
Superb
WeightWorld
WeightWorld Vitamin D3 4000IU & K2 125μg (MK7) | 365 VIT D Tablets | 1 Year Supply | Easy to Swallow VIT D (6mm in Size) | 1 per Day | Cholecalciferol Form | Vitamin D3 K2 Supplements
Check Price
Show More
Why we love it
High strength for better absorption.
Provides 8-month vitamin supply.
Enhances immunity, joints and muscles.
Main Highlights
DAILY DOSE OF VITAMIN D3 K2: Looking for an effective way to get enough Vitamin D and K2? Look no further, as WeightWorld's Vit D supplement offers Vitamin D3 4000 IU (as cholecalciferol) with 125mcg of Vitamin K2 (menaquinone) for optimal absorption. Experience a more natural way of living with WeightWorld's Vitamin D tablets.
365 MICRO-TABLETS: Each bottle contains 365 easy-to-swallow 6 mm micro Vitamin D3 & K2 tablets, enough for a full year. While sunlight is a common source of Vitamin D, maintaining optimal levels can be challenging due to lifestyle factors. Take 1 micro tablet daily to meet the recommended intake of both D3 and K2.
LEVEL UP WITH VITAMIN D3 K2 SUPPLEMENTS: Vitamin D contributes to the maintenance of normal muscle function. Vitamin D contributes to normal blood calcium levels. Vitamin K contributes to the maintenance of normal bones. Vitamin D contributes to the normal function of the immune system. Vitamin K contributes to normal blood clotting (EFSA Approved Claims). The added Vitamin K2 MK7 works alongside Vitamin D for optimal nourishment.
VEGETARIAN AND NON-GMO: WeightWorld’s Vitamin D3 K2 Tablets are vegetarian-friendly and made without GMOs or magnesium stearate. These vit D tablets are manufactured using carefully selected ingredients in accordance with GMP guidelines. Each batch delivers a clean Vitamin D & Vitamin K2 supplement suitable for every lifestyle.
THE JOURNEY OF WEIGHTWORLD: Born from a passion for food supplements, WeightWorld has been growing since 2006. With nearly two decades of experience, the brand offers a wide range of products, including vitamins, minerals, plant-based supplements, devices, and more. Now reaching multiple countries, the focus remains on developing products that evolve with changing needs while staying true to the values that started it all.
Show More
8
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
20% Off
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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8.9
Excellent
Check Price
8.9
Excellent
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
20% Off
Check Price
Show More
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.
Show More
9
Vitamin D3 4000 IU High Strength Vitamin D Tablets – 365 Vegetarian Tablets (Full 1 Year Supply) for Immune System, Muscle & Bone Health Support – Made in UK – 4 HIM & HER
4
Why we love it
One year supply in pouch.
Easy to swallow, no aftertaste.
Made in the UK.
Main Highlights
MAXIMUM STRENGTH 4000 IU – Each small, easy-to-swallow tablet provides a potent 100µg (4000 IU) dose of Vitamin D3 (Cholecalciferol), often referred to as the "daily dose of sunshine" to help maintain optimal levels year-round.
FULL 1 YEAR SUPPLY – Take the guesswork out of reordering with 365 tablets per pack, providing comprehensive coverage for a full 12 months with just one single tablet daily.
IMMUNE, BONE & MUSCLE SUPPORT – Vitamin D is essential for the normal function of the immune system and contributes to the maintenance of healthy bones, teeth, and normal muscle function.
SMALL, EASY TO SWALLOW & NO AFTERTASTE – Our tiny 8mm tablets are specifically designed to glide down easily with no unpleasant smell or taste, making your daily health routine simple and hassle-free.
PREMIUM UK QUALITY & CONVENIENT PACKAGING – Proudly made in the UK in a GMP-certified facility; our formula is vegetarian-friendly, non-GMO, and free from gluten and dairy, all housed in a slim, resealable, and recyclable space-saving pouch.
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8.7
Excellent
Check Price
8.7
Excellent
4
Vitamin D3 4000 IU High Strength Vitamin D Tablets – 365 Vegetarian Tablets (Full 1 Year Supply) for Immune System, Muscle & Bone Health Support – Made in UK – 4 HIM & HER
Check Price
Show More
Why we love it
One year supply in pouch.
Easy to swallow, no aftertaste.
Made in the UK.
Main Highlights
MAXIMUM STRENGTH 4000 IU – Each small, easy-to-swallow tablet provides a potent 100µg (4000 IU) dose of Vitamin D3 (Cholecalciferol), often referred to as the "daily dose of sunshine" to help maintain optimal levels year-round.
FULL 1 YEAR SUPPLY – Take the guesswork out of reordering with 365 tablets per pack, providing comprehensive coverage for a full 12 months with just one single tablet daily.
IMMUNE, BONE & MUSCLE SUPPORT – Vitamin D is essential for the normal function of the immune system and contributes to the maintenance of healthy bones, teeth, and normal muscle function.
SMALL, EASY TO SWALLOW & NO AFTERTASTE – Our tiny 8mm tablets are specifically designed to glide down easily with no unpleasant smell or taste, making your daily health routine simple and hassle-free.
PREMIUM UK QUALITY & CONVENIENT PACKAGING – Proudly made in the UK in a GMP-certified facility; our formula is vegetarian-friendly, non-GMO, and free from gluten and dairy, all housed in a slim, resealable, and recyclable space-saving pouch.
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10
Vitamin D3 5000 IU & Vitamin K2 100mcg (MK-7) x120 Capsules - High Strength Vitamin D & K2 Supplement for Men & Women, Made in the UK by Royal Oak Health
Royal Oak Health
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 vegetarian friendly capsules 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 soft gel capsules with sunflower oil deliver Vitamin D3 more effectively for improved absorption. Convenient and Effective: Enjoy the convenience of an easy-to-swallow soft gel 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
Award Winning Supplements - Winners of the British Made Awards “Best Food Supplements Manufacturer” and, most recently, “Top Dietary Supplement Company UK 2026.” Established in 1999, Royal Oak Health creates premium-quality supplements, upholding high standards in product quality and consumer transparency.
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8.7
Excellent
Check Price
8.7
Excellent
Royal Oak Health
Vitamin D3 5000 IU & Vitamin K2 100mcg (MK-7) x120 Capsules - High Strength Vitamin D & K2 Supplement for Men & Women, Made in the UK by Royal Oak Health
Check Price
Show More
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 vegetarian friendly capsules 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 soft gel capsules with sunflower oil deliver Vitamin D3 more effectively for improved absorption. Convenient and Effective: Enjoy the convenience of an easy-to-swallow soft gel 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
Award Winning Supplements - Winners of the British Made Awards “Best Food Supplements Manufacturer” and, most recently, “Top Dietary Supplement Company UK 2026.” Established in 1999, Royal Oak Health creates premium-quality supplements, upholding high standards in product quality and consumer transparency.
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