Star Rating Trust Pilot Logo

Vitamin D

All Products In This Category

What Is Vitamin D?

Vitamin D is a fat-soluble nutrient that is needed for the proper functioning of your immune system and multiple organs, such as the bones, teeth and muscles. When exposed to the sun, your skin can manufacture vitamin D, which is why it’s also referred to as the "sunshine vitamin." However, it’s tough to ensure that your body is producing enough vitamin D to maintain optimal health. That’s why you must also consider reaping this vital vitamin from food and vitamin D supplements.

Benefits of Taking Vitamin D Supplements

Taking vitamin D supplements helps you get the daily required amount of vitamin D3 to unlock your best version. According to the European Food Safety Authority (EFSA), vitamin D:

  • Contributes to the normal function of the immune system
  • Contributes to the maintenance of normal bones, teeth and muscle function
  • Contributes to normal absorption/utilisation of calcium and phosphorus
  • Contributes to normal blood calcium levels
  • Has a role in the process of cell division

How Much Vitamin D Does Your Body Need?

The amount of vitamin D your body needs every day depends on your age and biological condition. Here’s a list below showing the daily recommended amount of vitamin D for people with varying demographic profiles.

Demographics Daily Requirement of Vitamin D
Children (1-13 years) 15 mcg (600 IU)
Adult Women 15 mcg (600 IU)
Adult Men 15 mcg (600 IU)
Pregnant Adult Women 15 mcg (600 IU)

Different Types of Vitamin D Supplements at WeightWorld

At WeightWorld, we have a huge selection of vitamin D supplements tailored to meet your specific needs. From easy-to-swallow vitamin D tablets to delicious gummies to versatile liquid, you can choose from a wide variety as per your preference. Since most vitamin D food sources are animal-based, we have also formulated vegan vitamin D supplements so that even vegans and vegetarians are not deprived of this key vitamin.

Our Bestselling Vitamin D Tablets & Supplements

Here are our most trusted and bestselling vitamin D tablets and supplements:

With an optimal dose of vitamin D, our bestselling supplements fortify your body to help you feel at your best. Our bestsellers also include supplements offering up to over 1 year’s supply per bottle, helping you enjoy the vitamin D boost without the hassle of reordering every month.

Vitamin D Supplements at Best Prices - Up to 20% Off!

Wish to enjoy the benefits of the sunshine vitamin without burning a hole in your pocket? Then look no further! At WeightWorld, we have high-quality vitamin D products within the price range of just £8.99 to £17.99. That’s not all! We also offer up to 20% discount on multipacks and a free UK delivery all around the year to help you save more while on your wellness journey.

Why Buy Vitamin D Supplements from WeightWorld?

While there are many vitamin D tablets and supplements on the market, not all are made equal. Here’s why WeightWorld’s vitamin D supplements are your go-to solution!

Expertise & Experience

We formulate supplements with 19+ years of industry experience and expertise in the wellness supplement industry

100% Safe Formula

We use 100% natural ingredients that are GMP-certified so that you enjoy the benefits without facing any known side effects


We have gluten-free, lactose-free, vegan and vegetarian vitamin D supplement choices, perfect for everyone, including those with gluten or lactose intolerance or those on a plant-based diet

Massive Supply

We offer vitamin D tablets and supplements with up to 6 months’ supply per pack - no hassle of reordering every now and then

Assured Guarantee

We offer you a 100% money-back guarantee for 90 days so you can try the supplements risk-free

Good for the Environment

We produce the majority of our supplements in the UK to reduce our carbon footprint and also ship all our products in recyclable packaging to promote environmental sustainability


Vitamin D is necessary for bolstering your immune system and supporting your bones, teeth and muscles. It also has a role in the process of cell division, which means that it’s important for every cell in your body.

Vitamin D is available in 2 different forms, vitamin D3 and vitamin D2. While both can cover your vitamin D deficiency, the D3 form is usually preferred because it’s more active and more easily absorbable than D2.

You can opt for a diagnostic blood test to check your vitamin D levels. You may also understand vitamin D deficiency by checking its common symptoms such as brittle nails, flaky skin, hair loss, mouth ulcers and vision problems.

It is usually considered safe and beneficial to take vitamin D daily. Having said that, do not exceed the daily recommended vitamin D dosage to avoid unwanted effects.

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 they don't work for you, we will refund you for your order!

*It is important to note that the results of our products may vary with each individual user. You should always use these products alongside a nutritionally balanced diet and a regular exercise regime. All customer reviews found on this website are genuine.