The best vitamin D in the UK 2023

A deficiency in vitamin D can lead to many dysfunctions in the body. It is therefore essential to use a supplement to compensate for this lack. There are a multitude of vitamins D on the market according to the objectives. They also come in several forms: capsules, syrup, ampoules, of plant or animal origin. In this post, we have selected the best Vitamin D of the moment to help you make the right choice.

Nutri & Co - Vitamin D Plant 1

Best value for money

Nutri & Co - Vitamin D Plant

The best vitamin D in 2021

Elderly people, pregnant women, athletes or growing children, strengthen your immune system by taking vitamin D. This box contains a 15 ml bottle of vegetable vitamin D based on lichen.

11,99 £ on Amazon

Nutri & Co's liquid vitamin D is a dietary supplement intended for people of all ages. A doctor's advice should be sought for people who are considered vulnerable. One drop of this vitamin D corresponds to a biological activity of 1000 IU. The daily amount should not exceed 2 drops per person.

The various benefits that you get from the use of this substance particularly affect the bones, muscles and teeth. The vitamin D in this bottle belongs to the D3 or cholecalciferol classification. A total of 335 drops are available through this Nutri & Co product. With this vitamin, the ideal age for children is 4 years.

Pediakid - Vitamin D3 100% natural origin 2

Best value for money

Pediakid - Vitamin D3 100% natural origin

The best entry-level vitamin D

Increase the bone density of your child and avoid its growth delay. Pediakid is a liquid vitamin D designed in this sense, with ingredients of natural origin. You can use it from the birth of your child.

8,72 £ on Amazon

Classified D3, the vitamin D of Pediakid has the function to improve the immune defense of the smallest. It is also a dietary supplement for children and people aged 15 years and over. Administered orally, this vitamin D is quantifiable in drops and can be taken daily. The accepted volume is one to two drops in a whole day.

You have the choice between 2 ways of using this product. You can either have the drops swallowed by the child or you can mix them with a viscous food. Apart from vitamin D3 as the main element, this substance is also rich in vitamin E. The capacity of its bottle is 20 ml and this product ensures a daily vitamin intake of 200% in children.

Vit4ever - Vitamin D3 + K2 3

Best value for money

Vit4ever - Vitamin D3 + K2

The best high-end vitamin D

This bottle contains 180 tablets of vitamins D3 and K2. These 6 mm diameter pills are easy to swallow. Made from natural substances, this organic product is suitable for those who follow a 100% vegetarian diet.

19,92 £ on Amazon

The characteristics of the tablets inside this box of vitamins D3 and K2 show that they are of a high dose. The biological activity of each tablet is estimated at 20,000 IU. The person suffering from a deficiency of these vitamins can only swallow them once every 20 days. The daily intake of vitamin D3 is thus equivalent to 25 μg.

As a whole, this Vit4ever box weighs 43 grams. As for the ingredients of this product, the vitamin D3 is derived from wool fat. As for the K2 one, it is obtained by careful work involving vegetable oils. For a healthy diet, countless food supplements are contained in this product.

Solgar - Vitamin D3 4


Solgar - Vitamin D3

A complete and effective vitamin D

Take control of your health and rebalance your diet. This bottle of vitamin D3 contains 100 capsules which are a food supplement for adults. They are gluten-free and compatible with diabetics.

15,12 £ on 1001 Pharmacies

Characterized by an oral administration route, this vitamin D3 has a biological activity measured at 400 IU. As it is a substance with nutritional virtues, 1 softgel is to be swallowed every 2 days, during the meal. The product is odorless and does not contain any fatty elements such as milk derivatives. It is strictly not recommended for children.

With a mass corresponding to a dosage of 10 μg, this vitamin D3 has a daily intake of 200%. For those who develop an allergy or are very sensitive, this product is free of artificial coloring. In principle, pregnant or breastfeeding women should not take this food supplement. Its bottle has a capacity of 54.5 grams.

Buying guide • November 2023

Best vitamin D

Any specific needs?

The best vitamin D in 2021

The best entry-level vitamin D

The best high-end vitamin D

A complete and effective vitamin D

Your guide : Samuel

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Comparison table of the best vitamin D

Top Inexpensive Top of the line Excellent
Nutri & Co - Vitamin D Plant 5
Pediakid - Vitamin D3 100% natural origin 6
Vit4ever - Vitamin D3 + K2 7
Solgar - Vitamin D3 8
Nutri & Co - Vitamin D Plant
Pediakid - Vitamin D3 100% natural origin
Vit4ever - Vitamin D3 + K2
Solgar - Vitamin D3
Elderly people, pregnant women, athletes or growing children, strengthen your immune system by taking vitamin D. This box contains a 15 ml bottle of vegetable vitamin D based on lichen.
Increase the bone density of your child and avoid its growth delay. Pediakid is a liquid vitamin D designed in this sense, with ingredients of natural origin. You can use it from the birth of your child.
This bottle contains 180 tablets of vitamins D3 and K2. These 6 mm diameter pills are easy to swallow. Made from natural substances, this organic product is suitable for those who follow a 100% vegetarian diet.
Take control of your health and rebalance your diet. This bottle of vitamin D3 contains 100 capsules which are a food supplement for adults. They are gluten-free and compatible with diabetics.
15 ml
20 ml
Box of 43 g
Bottle of 54,50 g
180 tablets
100 capsules
Virgin rapeseed oil, vegetable Vitamin D3 from lichen, antioxidant: Vitamin E.
Deodorized oleic sunflower oil, Vitamin D3 100% natural origin extracted from lanolin, antioxidant: Natural vitamin E.
Cholecalciferol (vitamin D3), microcrystalline cellulose (bulking agent), menaquinone MK-7 (K2VITAL®, All-trans 99+%).
Sunflower oil Softgel envelope : gelatin, vegetable glycerin Vitamin D3 (400UI, from fish liver oil and cholecalciferol)
Health of Bones, Teeth, Muscles and Immune System
Strengthening of natural defenses
Maintain bone health, maintain normal muscle function, healthy teeth, healthy immune system function
Normal bone structure and dentition, reinforcement of the immune system, normal absorption of calcium and phosphorus
1 to 2 drops per day
1 to 2 drops per day
1 tablet every 20 days
1 softgel every 2 days

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Report an error, request the addition of a feature to the table, or suggest another product. Thank you for your kindness!

Buying guide - vitamin D

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How to choose your vitamin D

Filling up on vitamin D is essential to staying healthy, but it could also have a detrimental effect if you don't know which one to take. So, there are a few criteria to consider when choosing the right supplement.

#1 - The needs

The intake of vitamin D is based on individual needs. For babies 0 to 1 year old, they need a daily dose of 400 IU/d; for the 1 to 70 age group, it's 600 IU/d and for people 70 years and older, the recommended dose is 800 IU/d. For pregnant and breastfeeding women, it is 600 IU/d.

#2 - The nature

Vitamin D can be animal (D3) or plant (D2). Vitamin D2, also known as "ergocalciferol", is entirely natural and can be found synthesized in cereals, but also in mushrooms in smaller quantities. As for vitamin D3, also known as "cholecalciferol", it can be synthesized by the body thanks to the sun's rays.

#3 - The form

The form is one of the important criteria to take into account when it comes to obtaining vitamin D. Indeed, the latter is available in various forms. We can mention for example tablets, drops, capsules or drinkable ampoules. Now, it is up to each person to choose the form that suits him or her best!

#4 - The concentration

With regard to vitamin D, we speak of deficiency when the concentration of vitamin D2 in the blood is below 49 nmol/liter. On the other hand, vitamin D is insufficient in a person whose vitamin D2 concentration is between 50 nmol/liter and 74 nmol/liter. Finally, if the concentration of vitamin D2 exceeds 75 nmol/liter, your body contains a reasonable amount of vitamin D.

#5 - The dosage

In terms of dosage, this is expressed not in micrograms, but in IU (International Unit). However, you should know that one microgram is the equivalent of 40 IU. For individuals aged 50 and under, they should ensure a daily vitamin D supplement of 400 to 1000 IU to prevent diseases such as osteoporosis! For those over 50, it will be between 800 and 2000 IU!

Who is vitamin D intended for and how does it affect our body?

As with any element that is essential to the body, vitamin D is not intended for a specific age group. In fact, many people tend to believe that vitamin D is mainly intended for children to ensure their proper growth. This is totally true, but it should not be forgotten that vitamin D is also a real ally for individuals who are entering the old age phase. If an elderly person ensures that his or her vitamin D intake is constant, he or she can avoid certain conditions such as arthritis. Osteoarthritis is the consequence of the degradation of the cartilage covering the extremities of your bones located mainly on the joints. Taking vitamin D also prevents the onset of chronic diseases such as Parkinson's or Alzheimer's.

How does vitamin D act on the body? E

s a fat-soluble element, vitamin D is better absorbed by the body if it is associated with a lipid. The synthesis of this element inevitably involves exposure to sunlight. As soon as you ingest vitamin D, it associates with a transport protein to be transported directly to the liver. There, its chemical structure will change to a form called circulating. The active form will then be synthesized using this circulating form. It is important to know that in the body, vitamin D3 reaches the active form more easily than vitamin D2.

The different types of vitamin D

Depending on the shortage to be filled and the expected results, vitamin D is essentially presented in 2 distinct forms: vitamin D2 and vitamin D3.

Vitamin D2

Vitamin D2 is a variant of vitamin D. Since it is of plant origin, it can be found in certain foods such as cereals. For this reason, it is highly prized by people who do not eat meat, such as vegans. The transformation of vitamin D2 into active vitamin D is done by the liver.

Since vitamin D2 is one of the forms of vitamin D, it provides the same benefits. For example, it prevents fractures, ensures the growth of young children, stimulates the immune system and generally contributes to the health of your teeth and bones! It also has a positive effect on diabetes.

Vitamin D3

Contrary to vitamin D2, vitamin D3 is in most cases of animal origin. However, there is (more rarely) vitamin D3 of plant origin from boreal lichen. This will delight vegetarians! But whether it is one or the other, vitamin D3 is synthesized by the body after being exposed to solar radiation.

The benefits of vitamin D3 are numerous. Compared to vitamin D2, it is much more stable and easier to absorb. It helps fight diseases such as cancer, diabetes and certain diseases that affect the heart. It also contributes to better bone growth. The nervous system also benefits from its advantages.

Vitamin D capsule, drop or drinkable ampoule ?

Vitamin D capsule

Vitamin D in capsule form has several advantages. First of all, because the capsules have a gelatin envelope, taste problems can be avoided. Indeed, there is no contact between the mouth and the contents of the capsule. There are also capsules that can be opened and the contents dissolved in water.

One of the biggest disadvantages of vitamin D in capsules is swallowing. Swallowing a capsule does not feel very good and it must always be taken with water or it may stick. This is the reason why it is not suitable for children! Finally, capsules are known to be vulnerable to humidity.

Vitamin D drop

Vitamin D drop has significant advantages. Thanks to its ease of use, it is suitable for both children and seniors. Secondly, the dosage is very precise due to the presence of droppers. Finally, one of the great positive points of the drinkable solutions is the fact that the active ingredients reach the body quickly enough for a higher efficiency.

Despite its advantages, vitamin D in drop form also has its drawbacks. First of all, there is the problem of taste! Since the contents come directly into contact with the mouth, there is no way to mask the taste. Then, before being able to reach the organism, it can happen that certain active ingredients are attacked by the gastric juice.

Vitamin D oral ampoule

Unlike a capsule or a tablet, vitamin D ampoule for drinking does not pose any concern with regard to swallowing. And just like drops, which are a liquid solution, the active ingredients contained in the drinkable ampoule reach the body in record time. Drinkable ampoules are also appreciated because they generally ensure a good dosage.

The first disadvantage of vitamin D ampoules is their packaging! Indeed, glass ampoules are very fragile in case of shocks or falls. Then, from the point of view of the taste, if for example this one is not really pleasant, it will be very quickly felt since the contact of the contents with the tongue is inevitable.


Whether it is vitamin D in capsules, drops or drinkable ampoules, these 3 forms of presentation are all effective in ensuring the additional intake of vitamin D in your body. But when it comes to children or the elderly, it is wiser to turn to the drinkable solutions to facilitate their intake. The active ingredients also work more quickly.

The 5 benefits of vitamin D

Contributes to the proper growth of the child

For a child, having a good level of vitamin D in the body is essential for its growth. In this way, he is protected from diseases such as rickets, which is characterized by a vitamin D deficiency. This has serious consequences on the child's motor development. The quality of his sleep is also likely to be strongly impacted!

Strengthens the body's immunity

Among all the benefits of vitamin D, we can mention its intervention in the immunity. Indeed, it modulates the activity of macrophages whose mission is to eliminate not only bacteria, but also viruses. Moreover, vitamin D helps cells to efficiently generate molecules that are capable of eliminating bacteria!

Helps you age well

Taking vitamin D is more than recommended for the elderly. Vitamin D has antioxidant properties. Thanks to it, your cells will age less quickly! But for it to be effective, you should combine it with a balanced diet. And according to recent research conducted in the field of neurodegenerative diseases such as Alzheimer's, it has been shown that vitamin D helps fight against this type of pathology.

Fighting fatigue and stress

Have you had a difficult week at work and feel tired? Vitamin D can give your vitality a boost! It acts effectively to help the body strengthen itself while ensuring its proper functioning. And if you're feeling stressed, vitamin D is also a good way to put a smile on your face.

Makes bones stronger

Vitamin D is known for its beneficial effect on bones, whether for children or adults. There is nothing better to prevent fractures or osteoporosis. But be careful, you must ensure that your calcium level is correct! Women who have reached menopause should make sure that their vitamin D level is always sufficient.

The best brands of vitamin D

In our opinion, the best brands of vitamin D in 2022 are :


The brand first appeared in the United States in 1947. It has acquired a solid reputation in the field of food supplements. These are of high quality and incomparable effectiveness! The brand distinguishes itself from its competitors by its willingness to use natural ingredients. Its products do not contain gluten and are also free of artificial colors and flavors.

This brand based in the UK was created in 1992. It is known today for its high quality food supplements! These are essentially elaborated from molecules of natural origin. Its objective is to provide your body with the elements it needs to enjoy an iron health. It suggests a range that satisfies various dietary deficiencies.

Nutrivita is a young French brand that was founded in 2012. This does not prevent it from being among the best brands in the field of food supplements. These are specially designed to meet all needs. They do not contain gluten, dyes and even less chemical additives. This explains why this brand manages to convince so many people around the world.

Granions is among the best references in the dietary supplements sector. In general, in addition to their exceptional quality, the products signed Granions are distinguished by the concern to provide a great comfort of use. Moreover, the ingredients used are rigorously selected with the aim of guaranteeing optimal effectiveness!

Founded in 2017, this French brand specialized in nutraceuticals is located in Aix en Provence. It is convinced that quality food supplements should not be reserved only for a specific category of "consumers". The Nutri&Co brand plays the card of transparency regarding the origin of the ingredients used in the composition of its products.

What is the price vitamin D

The diagram below will help you to get an idea of the typical prices for each price range (entry-level, mid-range and high-end).

However, more expensive does not necessarily mean better.

We therefore advise you to always consult our ranking before deciding, rather than blindly relying on price ranges.

5 £ to 10 £
10 £ to 20 £
more than 20 £
Price range diagram


Respect the prescribed dose

Vitamin D supplements are designed to strengthen your immune system, not the other way around. Taking these substances means respecting their dosage so that the product does not harm your physical health. When it comes to the dosage of vitamin D, the conventional maximum threshold is set at 20 µg, or 800 IU.

Assimilate vitamin D with natural foods

It is always preferable to accompany the intake of vitamin D by the consumption of foods rich in nutritional intake. You can make this a reality by choosing from the various natural foods that interest you and stimulate your appetite. Know that animal viscera are on par with fish in terms of nutrients full of vitamin D.

Be careful with ingredients

If you decide to turn to dietary supplements sold in pharmacies, focus your attention on the ingredients instead. The product you choose should meet the requirements of your physical condition and what you can tolerate. If possible, avoid vitamins D prepared with additives and which are likely to trigger allergic reactions.

Eat fatty fish to avoid deficiencies

Cooking fatty fish is among the simple, but very effective ways to fight against a lack of vitamin D. These fish products, even when eaten in smaller amounts, provide a share of the vitamins your body needs. Like trout and sardines, salmon, herring or even mackerel are recommended in this perpetual quest.

Expose yourself to the sun regularly

The UVB rays of the sun coming into contract with your body gives rise to the formation of vitamin D. This natural process is to be taken into account, while respecting some important rules. The ideal times to expose yourself to the sun are between 11am and 4pm. During this time, find 10 minutes to take advantage of the vitamin D.


How to take vitamin D?

Even though vitamin D is a nutritional supplement, it is essential to get medical advice before taking it. Each substance has a dosage that must be respected, in parallel with the prescription of your doctor. For a phial for example, taking one per month is sufficient. On the other hand, the dose for other formats such as capsules or tablets may be different.

Is it dangerous to take too much vitamin D?

An excessive dose of vitamin D, apart from causing a sudden rise in the level of calcium in the blood, may cause sleep disturbance or dizziness in an adult. Similar symptoms can be observed in children, but they will be more severe because of the fragility of their immune system. An excess of vitamin D is also likely to lead to a balance disorder. However, the manifestations vary according to the type of vitamin D and the quantity absorbed.

What is vitamin D used for?

Depending on the choice of vitamin D, it can improve the functioning of the body or strengthen the bones. Elderly people will feel more alive after a treatment since this type of vitamin contributes to the toning of muscles and the prevention of many pathologies such as cancer. In children over the age of one, vitamin D is an excellent supplement for bone and muscle development.

What are the best natural sources of vitamin D?

Other than the sun, which is an excellent natural supplier of vitamin D, certain foods contain a good amount. We note oily fish, vegetables such as mushrooms, specifically porcini and morels, eggs, milk and avocado. Dark chocolate with more than 40% cocoa also contains vitamin D.


Note: Below are some of the sources we have consulted in writing this article. Links to other sites are not continuously updated. It is therefore possible that a link may not be found. Please use a search engine to find the desired information.
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  7. Vitamin D's Role in Immunity,
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See more


March 2022 : Translation of this buying guide from our partner

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Our selection
Nutri & Co - Vitamin D Plant 9
Nutri & Co - Vitamin D Plant
Pediakid - Vitamin D3 100% natural origin 10
Pediakid - Vitamin D3 100% natural origin
Vit4ever - Vitamin D3 + K2 11
Vit4ever - Vitamin D3 + K2
Solgar - Vitamin D3 12
Solgar - Vitamin D3


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