10 Best Vitamin D Supplements To Buy in 2021

In winter, our body does not have much chance to get Vitamin D from sunlight. However, you can still add this healthy substance to your body with the help of the best Vitamin D supplements. These items can not only increase the amount of Vitamin D in your body but also provide a lot of essential nutrition to strengthen your bones.

In this article, we bring you the top 10 nutritional products on the UK market. Also, we share with you some useful buying tips right below. Just have a look, and you will be able to choose the best Vitamin D supplement 2021!

Top 10 Best Vitamin D Supplements In The UK Reviews

Below are our top picks of the 10 best Vitamin D supplements in the UK.

#1: Mobu Vitamin D3 1000 IU – Best For Immune Support

No products found.

The Mobu Vitamin D3 1000 IU will keep you far away from bad diseases! You will always feel strong because this supplement has a great ability of immune support!

We will analyze the formula of this product! This cholecalciferol supplement contains  2 main ingredients which are Microcrystalline Cellulose and Magnesium Stearate. They are both natural plant-based ingredients so that the vegetarians can absorb them with no worry.

As you know, Cellulose and Magnesium are the 2 best substances that work to strengthen the bones, teeth, and especially the muscle of your body. Since you have a healthy and strong figure, you can comfortably do outdoor activities with less chance of getting sick!

Before taking this Mobu tablet, you should break it down into small pieces. Otherwise, you may have to struggle a little bit to swallow this tablet, as it is quite large in size.

  • Immune support
  • Bones, teeth, and muscle strengthening
  • Vegan Vitamin
  • High strength of 1000 IU
  • 120 pieces for 4 months of usage
  • Nice design of package
  • Large size of tablets
  • No overdosing allowance

#2: Seven Seas Simply Timeless – Best For Brain and Vision Support

No products found.

Do you want to have a brighter sight? Do you want to increase your memorization ability? If yes, you can place your trust in this Seven Seas Simply Timeless!

The item is based on animal-food sources with 70% of cod liver oil and fish oil, 30% of nutritional substances such as gelatin, glycerol, antioxidant ingredients. This formula will provide a high amount of Omega 3 to support your brain and vision.

Besides Vitamin D, this Timeless product also supplies Vitamin E, which protects your eyes from the harmful impact of the sunlight. Your eyes will get good protection to stay away from the effects of Ultraviolet rays. As a result, you will never feel tired at the eyes!

It is very unfortunate that this Timeless product is not suitable for children under 12 years old and women who are having pregnancy. Due to the strong content in the formula, the product may create a little bit of side effects such as headache or dizziness.

  • Eyes protection
  • Omega 3 providing
  • Memorization ability support
  • 2 options for the number of pills
  • Skin caring
  • Making joint flexible
  • No women who have pregnancy support
  • No children below 12 years old allowance
  • No storing above 25°C

#3: SunVit-D3 Vitamin D3 400 IU Daily Tablets – Best For Good Appetite 

No products found.

Loss of appetite is a common problem caused by the Vitamin D deficiency. If you have had bad taste recently, then it is time to get some support from the best Vitamin D tablets – the SunVit-D3!

The product has impressed us a lot because of its huge amount of nutritional ingredients. Believe it or not, this item contains the most healthy plant-based substances in the world, such as Modified Maize Starch, Sunflower Oil, Carnauba Wax, and more!

These ingredients will replenish the nutrients that are lacking in your body, thereby preventing your body from getting weak and bringing the good appetite back to you.

Despite the large amount of ingredients, the SunVit-D3 is not too strong. The total IU (International Unit) of this product is just 400. Also, the item does not contain any gluten. So just feel free to drink the pills every day!

Unfortunately, there are only 28 pieces of tablets in one package of SunVit-D3. This pill number is only enough for one month of usage. If the provider can sell larger box, then the consumers can have more convenience to buy and use this supplement!

  • Getting back the good appetite
  • Replenishing the nutrients that the body misses
  • Small amount of Vitamin D (400 IU)
  • No gluten
  • Body strengthening
  • Working without the effect of the sunlight
  • Small number of pills in one package (28 pieces)
  • No breaking of tablet (for easy swallowing) allowance

#4: Better You Dlux 1000 Vitamin D Spray – Best For Spray Form

No products found.

Tablets are usually difficult to swallow, especially when you don’t have water beside you. In this case, using a sprayer is the most convenient solution. Therefore, we have chosen and brought this Better You Dlux Oral Spray on the list today.

Do not underestimate the effectiveness of this Dlux Oral Spray! It can provide to you 1000 IU (25μg) of cholecalciferol Vitamin for every dose you take. In other words, this spray form is as effective as pills or liquid supplements.

As mentioned, sprayer is a convenient tool to use. What you need to do is open the bottle, spray the Vitamin D into your oral, and everything is done. You probably have not known, spraying even helps you have a better Vitamin D absorption that the other types do.

The bad point of spraying is that your mouth and tongue may become sore. It is not difficult to understand this issue. After you spray, the Vitamin will absorb into your tongue immediately and cause dryness.

  • Spraying for convenience
  • Ease of use
  • High effectiveness
  • No gluten
  • Better Vitamin D3 absorption
  • Sore tongue and mouth causing
  • No sugar

#5: Healthspan Vitamin D3 Super Strength – Best For Calcium Absorption

No products found.

Calcium is one of the most important substances that strengthen the bones and muscles of your body. If you want your body to absorb calcium better, you surely will need the help of the Healthspan Vitamin D3 supplement.

The product will provide a high amount of cholecalciferol Vitamin into your body. This cholecalciferol Vitamin will contribute to the calcium absorption ability of your body. As a result, you will absorb more calcium from your daily calcium rich food.

Since there is a high amount of calcium, the immune system and muscle function of your body will be improved. Just take the supplement regularly, and you will always feel strong and healthy!

Here is a note for you! Never use this product as a replacement for your diet supplements or medicines. The product only provides nutrients to your body, not cure any adverse issue!

  • Providing a high amount of cholecalciferol Vitamin
  • Better calcium intake
  • Immune system and muscle function support
  • Gelatin free
  • Children and adult support
  • No replacement for diet supplements or medicines

#6: Pinnacle Nutrition Vitamin D3 4000iu 365 Tablets – Best For High Strength

No products found.

If you require a high dose of Vitamin D, the Pinnacle Nutrition Vitamin D3 supplement will be a good option to refer to!

This product contains a high amount of powerful ingredients such as Calcium Carbonate, Micro Crystalline Cellulose, and Magnesium Stearate. That’s why they can provide up to 4000 IU per dose to your health!

The cool thing, you don’t have to buy the pills many times. The package contains 365 pieces of tablets, enough for you to use in 12 months! In other words, you will be able to stay healthy for a year!

Please do not give this supplement to the children under 18 years old. 4000 IU is really a high dose that is not suitable for kids. The manufacturers even recommend the adult to use only 1 tablet per day.

  • High amount of cholecalciferol ingredients
  • High strength of 4000 IU providing
  • 365 pills for 12 months
  • 9 different health benefits
  • No children under 18 years old allowance
  • Limitation of 1 tablet per day for an adult

#7: Pure & Essential Daily Vitamin D3 2000 IU – Best For Vital Organs Support

No products found.

The next product on our list is the Pure & Essential Daily Vitamin D3 2000 IU. We recommend this product to any person who needs to improve the health of his vital organs.

All tablets in this product are sourced from lanolin – a substance which we usually get from the sheep’s wool. Thanks to the lanolin, the supplement can give you many beneficial effects on your health. As the advertisement says, for every single dose of the item you take, you get about 2000 IU of Vitamin D3!

More than that, the formulation of the item also helps keep the amount of calcium balanced to bring benefits to the functioning of vital organs. In other words, the product will take care of your main body parts, including the heart, brain, and lungs.

Compared to the previous product which provides 4000 IU of Vitamin D, this Pure & Essential Daily Vitamin D3 supplement gives a lower amount (only 2000 IU). However, 2000 IU is still very strong which is not suitable for children under 18 years old.

  • Ingredients sourced from lanolin
  • Strong power of 2000 IU
  • Vital organs support
  • Ease for swallowing
  • Quick absorption
  • No children under 18 support
  • No substitution for diet supplements

#8: BetterYou DLux Junior 400IU Spray – Best For Children Support

No products found.

It is hard to find a Vitamin D supplement for children, right? The good products usually supply too much IU. But don’t worry because we have found this Dlux Junior!

As the name described, the BetterYou Dlux Junior is specially made for kids above 3 years old. The amount of Vitamin D the item provides is just 400 IU. Therefore, the supplement will not cause any side effects if your kids drink it.

Of course, your children still will be able to receive a lot of health benefits from this Dlux Junior! The ingredients of xylitol, peppermint oil, acacia gum, water, citric acid will improve the immune system, teeth and bone of the kids.

Please be careful while spraying the supplement into your child’s mouth. Because the minty flavour is a little bit spicy, your children may not like the taste of it!

  • Children above 3 years old support
  • No side effects
  • Immune system, teeth, and bone improvement
  • Food-sourced ingredients
  • Spicy minty flavour
  • Lasting only 6 months long after being opened

#9: BetterYou DLux Infant Vitamin D Spray – Best For Infant Support

No products found.

It is cool that the BetterYou Dlux Junior supports children, right? But keep calm because the next product – the Dlux Infant even does the better job! Believe it or not, but this supplement can work to support babies under 3 years old!

How can this item support infants? Instead of minty flavour, this product has a sweet flavour of coconut to attract the babies. In addition, the product comes in the spray form which gives you convenience to feed your children.

The ingredients of this Dlux Infant are different from the Dlux Junior’s, but the amount of Vitamin D these 2 products provide are the same! Your babies are able to get a suitable Vitamin D amount of 400 IU for each dose.

About the drawback, each bottle can give benefits to your children for about 3 months. The volume of this supplement is just 15 ml which is quite small. Things will go better if the BetterYou company can sell bigger bottles.

  • Children below 3 years old allowance
  • No spicy taste
  • No artificial colour
  • 400 IU providing
  • Small volume of 15 ml

#10: Incite Nutrition Vitamin D 4000 IU – Best For Ease Of Use

No products found.

Many people like the tablet form of the supplement despite the fact that it is hard to swallow. Knowing this, the Incite company has released the Nutrition Vitamin D 4000 IU – a product that is easy to take!

After opening the bottle, you definitely will be surprised because the tablets are very tiny. The micro diameter of each tablet is just about 6 mm which is ideal for easy swallowing.

But do not underestimate the power of this Incite supplement! Each tablet can provide up to 4000 IU to your health! Honestly, not many products on the market can provide a high dose of Vitamin D like this one does!

One more time, we have reminded you that 4000 IU is very high. You should not give these tablets to your children! Otherwise, they may get shock due to the strong dose.

  • High power of 4000 IU
  • No aftertaste
  • No artificial colour
  • Small size of tablets
  • No children under 18 support
  • No substitution for diet supplements

How to choose the best Vitamin D supplement – Buying Guide 

There are several factors you need to notice when choosing the best Vitamin D supplements. These factors will decide whether the product is good or not.

There are many forms of supplements!

The Vitamin D comes in a variety of forms. Your job is to choose the suitable form so that you can drink it with ease.

Typically, there are 3 common forms of Vitamin D supplements which are:

  • Tablets
  • Liquid
  • Spray

The tablets are also known as capsules. This form of Vitamin supplement is dry and light which is simple to carry around. However, drinking these pills may be a little difficult, especially for children.

Best Vitamin D Supplements In The UK

We recommend the liquid form for the kids. You can see the liquid Vitamin D as a sweet syrup which is easy to drink. Of course, no kid hates sweet things! However, liquid Vitamin D is usually stored in a glass bottle which is bulky and heavy to carry around.

The last form of supplements – the spray Vitamin D is also a great option. You can simply see this form as the liquid Vitamin D. The only different thing is that you will spray the liquid into your mouth, instead of drinking the nutrition.

Does the supplement support vegetarians?

Some supplements are based on animal-food sources. Some products are plant-based. If you are a vegetarian, please pay extremely careful when choosing the supplement.

How to know if the supplement is for vegans? Just have a look at the type of Vitamin D. We usually divide the Vitamin D into 2 types which are ergocalciferol (D2) and cholecalciferol (D3).

While the D3 is based on animals such as fish, cod liver, lanolin, the D2 is usually based on natural plants such as sugarcane, algae oil, soybean oil, etc.

How long can the supplements serve you?

Not all products have the same amount of pills or liquid. There are big size supplements and small size ones. Different items can support your health for weeks, months, and years.

Best Vitamin D Supplement UK

If you get started with Vitamin D supplements, we advise you to get the small amount first. If the product gives good effects on your health, then you can continue with the larger amount. Don’t buy the big box right at the first time in case it does not suit you.


Below are some common questions that you may have while reading our best Vitamin D supplements reviews.

#1: What is the difference between Vitamin D and Vitamin D3?

In fact, Vitamin D3 is a part of Vitamin D. We can divide the Vitamin D into 2 separate forms which are Vitamin D2 and D3. While the D2 is based on plant sources and fortified foods, the D3 comes from meat sources.

In other words, Vitamin D3 is a Vitamin D. You will get the same health benefits from drinking each of these 2 substances.

#2: When should you take the vitamin D supplement?

Vitamin D has an inverse relation to the sleep hormone melatonin inside your body. Usually, we synthesize Vitamin D with the best help from the sunlight. That’s why it is always better to get the supplement on days instead of nights.

Best Vitamin D Supplement

Of course, drinking the supplement at night is still good! You still get a lot of health benefits from the supplement. What we mention here is that your body will absorb the Vitamin D better in the morning.

#3: Are there any side effects when you take Vitamin D?

If you drink a suitable amount of Vitamin D, then there will be no problem to your health. Things only go bad when you take too much Vitamin D.

What too much is, is not good! You will get some side effects if you overdose the supplements. Some side effects we can name here are tiredness, sleepiness, dry mouth, fatigue, headache, bad appetite, etc.

However, the side effects the Vitamin D brings to you are not harmful. They will also disappear after a short period of time. So you can rest assured while drinking the supplements.

#4: What are the symptoms of low Vitamin D in the body?

If your body does not have enough Vitamin D, it will give you some signs. For example:

You will feel weak throughout the entire body. As you know, Vitamin D can strengthen the bones and the muscles. When there is a lack of Vitamin D, they will become weaker. Sometimes, you may even feel pain in your joints.

Another symptom for Vitamin D deficiency is the changes of mood. During this period, you may easily get upset, or feel depressed. It has been proved by the scientists that Vitamin D lack can cause depression.

#5: What foods provide a high amount of Vitamin D?

Besides sunlight and supplements, you can get Vitamin D from many different types of food. Here are some common foods that gives a high amount of Vitamin D:

  • Fatty Fishes (tuna, salmon, mackerel)
  • Milk products (cheese, milk, yoghurts, etc.)
  • Cereals
  • Fruit juice
  • Beef liver
  • Eggs


Above are our top picks of the 10 best Vitamin D supplements! Have you found the most suitable product to get?

In our opinion, the Healthspan Vitamin D3 Super Strength is the best vitamin D supplement UK. This product provides only 1000 IU, which is enough to support both children and adults. Also, the supplement can work to improve the calcium absorption ability of the body.

Anyway, all the 10 products are good to use. If you need more information about them, just get in touch with us! We will reply to you as soon as we can!

And now, our article will come to an end. Many thanks for reading!

Leave a Comment