We Chose The Best Vitamin D in The UK - 11/2025

Vitamin D3 4000 iu - 400 High Strength Easy to Swallow Premium Softgels - Over A Year's Supply - Max Strength Vitamin D3 Cholecalciferol Supplement - Manufactured in The UK by Nutravita

Vitamin D3 4000 iu - 400 High Strength Easy to Swallow Premium Softgels - Over A Year's Supply - Max Strength Vitamin D3 Cholecalciferol Supplement - Manufactured in The UK by Nutravita

Nutravita

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Why we love it

Easy daily boost for health.
Quality tested, trusted brand.
Designed for efficient absorption.

Main Highlights

✔ WHY IS NUTRAVITA VITAMIN D3 4000 IU GREAT VALUE FOR MONEY? – Our Maximum Strength Full-Year Supply soft gel capsules with an extra month FREE are especially formulated to aid in normal maintenance of our bones, teeth, muscles and immune system even without the sun (claims substantiated by EFSA – European Food Safety Authority). Taken only once a day, our Vitamin D3 4000 IU comes in small, easy-to-swallow soft gel capsules, not tablets and does not contain bulking or anti-caking agents.
✔ HOW IMPORTANT IS VITAMIN D? – Getting enough Vitamin D is essential for our health as scientific studies indicate that it plays an important role in the process of cell division, in normal absorption of calcium and phosphorus, and in maintaining normal blood calcium levels for healthy bones and teeth (claims are backed up by EFSA). The Vitamin D ingredient in our supplement is sourced from Germany.
✔ 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.
✔︎ QUALITY TESTED - Unlike many supplements, we haven't spared any expense on quality. Each ingredient is quality tested before the manufacturing process begins, every batch of our supplement undergoes further rigorous quality testing. 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.
✔ 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.

8.8

Excellent

8.8

Excellent

Nutravita

Vitamin D3 4000 iu - 400 High Strength Easy to Swallow Premium Softgels - Over A Year's Supply - Max Strength Vitamin D3 Cholecalciferol Supplement - Manufactured in The UK by Nutravita

Free Shipping

Why we love it

Easy daily boost for health.
Quality tested, trusted brand.
Designed for efficient absorption.

Main Highlights

✔ WHY IS NUTRAVITA VITAMIN D3 4000 IU GREAT VALUE FOR MONEY? – Our Maximum Strength Full-Year Supply soft gel capsules with an extra month FREE are especially formulated to aid in normal maintenance of our bones, teeth, muscles and immune system even without the sun (claims substantiated by EFSA – European Food Safety Authority). Taken only once a day, our Vitamin D3 4000 IU comes in small, easy-to-swallow soft gel capsules, not tablets and does not contain bulking or anti-caking agents.
✔ HOW IMPORTANT IS VITAMIN D? – Getting enough Vitamin D is essential for our health as scientific studies indicate that it plays an important role in the process of cell division, in normal absorption of calcium and phosphorus, and in maintaining normal blood calcium levels for healthy bones and teeth (claims are backed up by EFSA). The Vitamin D ingredient in our supplement is sourced from Germany.
✔ 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.
✔︎ QUALITY TESTED - Unlike many supplements, we haven't spared any expense on quality. Each ingredient is quality tested before the manufacturing process begins, every batch of our supplement undergoes further rigorous quality testing. 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.
✔ 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.

We scanned 207 products

We reviewed these offers relevant to the Vitamin D within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Nutrition Geeks, Vita Premium, WeightWorld, Vitabiotics Ultra, Incite Nutrition, Zipvit, Nutravita, Nu U Nutrition, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Vitamin D in the market, we considered we took a deep dive into 1036 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is 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. We love many things about this product by Nutrition Geeks. What sets it apart from the competition is Year-long supply in a pouch, Optimal absorption and efficacy, Sustainably delivered, allergen free.

The best value product for most shoppers and where user satisfaction is continuously the highest is Vitamin D 4,000 IU Tablets, Maximum Strength Vitamin D3 Supplement, 365 Easy to Swallow Tablets - Full Year Supply by Vita Premium based on online reviews by bloggers, experts and online shoppers.

The biggest bargain at the moment for Vitamin D and the best cost-to-value ratio is 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 Independentat Nutrition Geeks with a 20% discount.

Our list of the best Vitamin D is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

Best Vitamin D of 2025

We scanned 207 products

We concluded that: