Vitamin D3 4000IU

4000 IU 400 Tablets | Supports Immunity
  • Buy 1 £8.99 £11.99 £0.02 / Tablet
  • Buy 2 £16.18 £17.98 You Save 10% £0.02 / Tablet
  • Buy 3 £21.57 £26.97 You Save 20% £0.02 / Tablet

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Key Features

  • High Potency 4000 IU Vitamin D3 tablets
  • The regular functioning of the immune system
  • Maintenance of normal bones and teeth
  • Uniform absorption of calcium and phosphorus
  • Standard blood calcium levels
  • Maintenance of everyday muscle function
  • 1 tablet a day to boost natural levels
  • Money Back Guarantee
  • Gluten-free
  • Vegetarian
  • Dairy-free

Why WeightWorld’s Vitamin D3?

Vitamin D3 is considered essential for our bodies as it contributes to the maintenance of normal bones, teeth, muscle function and also supports the normal absorption of calcium and phosphorus. However, it is naturally found in relatively few foods like oily fish, meat and eggs and most of it comes from exposure to sunlight.

Sunlight is the most common source of Vitamin D but due to Britain's climate, it is very difficult to maintain its levels throughout the year. Our D3 High Strength supplement is the same form of D vitamin that is naturally produced in your body when exposed to the sun.

Also known as cholecalciferol, which is the same form of Vitamin D that your skin produces naturally when exposed to sunlight & WeightWorld Vitamin D3 tablets are a potent source of cholecalciferol. So, in addition to your healthy diet and daily exposure to sunlight, you can consider taking a high-strength Vitamin D3 supplement to top up your normal levels of vitamin D3 in its purest form.

Key Benefits & Functions

WeightWorld’s High Potency 4,000 IU Vitamin D3 tablets are a potent source of bioavailable Cholecalciferol for enhanced absorption & optimal dosage. This helps you to make the most of Vitamin D which has a role in the process of cell division and also aspires to help:

  • Supports natural defences
  • Maintenance of normal bones and teeth
  • Uniform absorption of calcium and phosphorus
  • Standard blood calcium levels
  • Maintenance of everyday muscle function

Who Should Take Vitamin D3 Tablets?

Many people don’t always get the required amount of Vitamin D from the sunlight due to seasonal changes and their diet alone may not be consistently balanced. Those who are unable to go outdoors frequently can also make the most of this vitamin, packed with sunshine. And finally, anyone who wants to supplement their healthy lifestyle and balanced diet; can do so with this high-strength formula. So ideally, everyone can take advantage of these pure and potent 4,000 IU Vitamin D3 tablets.

About WeightWorld

Launched way back in 2005 by a British-grown family. With over 15 years of experience in health and wellness supplements, we have dedicated ourselves to sourcing the highest quality natural ingredients. We create UK-made, GMP-certified products aimed at promoting a healthier body & mind for you and your family.


Simply take one tablet every day with a full glass of water, preferably with a meal. You can take the tablet any time during the day, in the morning, noon or evening as per your preference. For optimal results, it is recommended that you take the tablet at approximately the same time every day.

Why Vitamin D3

Vitamin D3 is essential for your body to perform at its best! Although it is well known that your body gets vitamin D from sunlight, with the British weather, that is not always an option. Not only that, but overexposure to UV rays from the sunlight can also be damaging to the skin! One of our tablets gives you the equivalent of a full day of sunshine!

Are there any side effects?

We pride ourselves on using all-natural ingredients in our products which means there are no known negative side effects and you can have peace of mind when using them.

What if it doesn't work for me?

We are confident that you will love our products, but we also understand that everybody is slightly different and may not feel the effects in the same way. We value our customers and want to make sure that they are 100% happy with their purchase which is why we offer our full money-back guarantee! If it doesn't work for you, we will refund you for your order!

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Customer Reviews

At WeightWorld we strive to offer the best possible customer service and we take great pride in the feedback we have received from our customers. All testimonials and reviews below are the experiences and opinions of WeightWorld customers. They should not be considered as health, medical or medicinal claims. They are no substitute for taking medical advice.

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reviews 5

95.98% based on 173 Verified reviews

Verified Purchase

Good value for money

S SarahAlderton
Verified Purchase

It's good to see 4000IU capsules instead of swallowing eight tablets like I used to need to do. It's difficult to find Vit D these days due to Covid. Since I had had excellent results with their liposomal Vit C and glutathione, I am delighted to try their other supplements. Revitalizing!

A Alexandra C
Verified Purchase

Perfect condition and delivered very quickly

S Sara W
Verified Purchase

good product, quick delivery

A Anna L
Verified Purchase

Perfect help all the family

C Carmen A
Verified Purchase

Great product, value for money, buying for a family member also.

J Jay
Verified Purchase

Good Product

P Peter
Verified Purchase

Very value for miney

G Georgeanne G
Verified Purchase

I take this product daily to combat a Vitamin D Deficiency and it works well

Verified Purchase

very good, prompt delivery

M Michael K

* Results may vary from one person to another.

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Vitamin D3 4000IU

4000 IU 400 Tablets | Supports Immunity