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10 Best holland and barrett vitamin d3

Welcome to our top 10 product reviews for holland and barrett vitamin d3. We've scoured the market to bring you the best of the best, with products ranging from a 7.1 score up to a whopping 9.8 score!

Updated January 2026
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Vitamin D3 4000 IU - with Extra Virgin Olive Oil for Optimum Absorption - High Strength Vitamin D Supplement Contributes to Bone, Muscle and Immune Function - 365 Vitamin D Capsules
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9.8
Exceptional

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Vitamin D3 4000 IU - with Extra Virgin Olive Oil for Optimum Absorption - High Strength Vitamin D Supplement Contributes to Bone, Muscle and Immune Function - 365 Vitamin D Capsules

Main Highlights

➤ THE SUNSHINE VITAMIN: Vitamin D is an essential nutrient (technically a hormone) that our bodies produce naturally, following exposure to UVB rays. Unfortunately, it can be tough to maintain sufficient vitamin D levels year-round. Our daily softgel vitamin D capsules provide 4000 IU per dose, helping you to keep your vitamin D levels in check.

➤ IMMUNE SUPPORT: Our bodies truly never stop, and our immune systems must work 24/7 to ensure we remain fighting fit and able to handle what life throws our way. Vitamin D tablets contribute to normal immune system function and it’s easy to keep your levels healthy with our vitamin D 4000 IU supplement. Plus, we added extra virgin olive oil to our formula, boosting absorption further.

➤ BONE & MUSCLE HEALTH: The benefits of Vitamin D don’t stop at the immune system — this powerful vitamin also contributes to the maintenance of normal bones and muscle function. Bone health is foundational to our ability to stay active, healthy, and happy — and normal muscle function is necessary for preventing the aches and pains that come naturally with aging. One daily dose of our vitamin D3 4000 IU helps maintain your level year-round.

➤THE AAVALABS STORY: The mission here at AAVALABS is to infuse our Nordic values of purity & freshness into the world. To do this, we combine the innate wisdom of nature with the power of modern technology, sourcing the highest quality ingredients and making them as bioavailable as we possibly can.

➤ AAVALABS GUARANTEE: Our primary goal at AAVALABS is to help you live life to the full and truly thrive, both physically and mentally. So if you're not happy with ANY purchase from us, please let us know!

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9.8
Exceptional
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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
9.6
Excellent

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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

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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9.6
Excellent
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Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

6
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
8.8
Good

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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

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 high strength 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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8.8
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8
Nutravita Vegetarian Vitamin D 4000 IU, 500 Micro Tablets for 16 Months of Supply, Made in The UK, Hight Strength VIT D3 - Vitamin D3 Supports Your Immune System & Bone Health
8.4
Good

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Nutravita Vegetarian Vitamin D 4000 IU, 500 Micro Tablets for 16 Months of Supply, Made in The UK, Hight Strength VIT D3 - Vitamin D3 Supports Your Immune System & Bone Health

Main Highlights

Why Nutravita Vitamin D 4000iu Tablets? – Our product provides a maximum strength of 4000iu Vitamin D3, per one convenient easy-to-swallow micro tablet. Each bottle offers 500 tablets which is over one year’s supply, making this product excellent value for money. It contains no synthetic fillers or binders and is free from allergens such as wheat, gluten, lactose, and nuts.

Highest Quality Ingredients - Vitamin D is a very important nutrient. It is needed in our bodies to help regulate the amount of calcium and phosphate for the maintenance of normal bones and teeth, as well as being important for the normal function of the immune system (claims substantiated by EFSA – European Food Safety Authority). This product contains the highest quality Vitamin D in Cholecalciferol form to offer our customers the best absorbable Vitamin D supplement.

Why Do We Need To Take Vitamin D Supplements? – Vitamin D is produced naturally by the body in response to sunlight and found in certain dietary sources such as oily fish, mushrooms and eggs. However, since it can be difficult to meet the required daily allowance from sunlight and food alone, taking supplements can help maintain satisfactory Vitamin D levels throughout the year.

Customer Peace of Mind – We have done our best to provide as much information as possible, but if you do have any questions please reach out to our very helpful customer care team. They will be happy to provide personalised assistance to help this supplement fit into your lifestyle. We always hope our customers are 100% happy with the product and service they receive, and so if you are not satisfied, please do not hesitate to contact us.

What is The Story Behind Nutravita? - Nutravita is a recognised and trusted Vitamins & Supplements brand providing thousands of customers across the world since 2014. Our high quality products are manufactured, batch tested and certified in the UK, and safeguarded by the highest manufacturing standards in the world (GMP, BRC). We have a dedicated team of pharmacologists, chemists and research scientists working to source the finest and most beneficial ingredients.

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8.4
Good
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