Vitamin supplements

Vitamins are an important molecules which support our bodies in a variety of ways. Scroll down to see our range of vitamin supplements.

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Adcal D3 chewable tablets

Adcal D3

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  • Increases vitamin D
  • Contains calcium
  • Available in chewable tablets
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DLux 4000 oral vitamin D spray

DLux 4000 Oral Spray

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  • Easy to take
  • Increases vitamin D
  • No prescription required
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Fultium D3 800IU Capsules

Fultium D3

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  • High-strength supplement
  • Easy to swallow capsules
  • Available from a UK based pharmacy
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HuxD3 20,000 IU 30 Vegetarian Capsules

HuxD3 Capsules

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  • High strength
  • No prescription required
  • Suitable for vegetarians
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Pro D3 2500 IU capsules

Pro D3

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  • Tops up vitamin D
  • Suitable for vegetarians
  • Available without prescription
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Valupak D3 1000 IU tablets

Valupak D3

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  • Raises vitamin D
  • Promotes bone health
  • Available without a prescription
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Vitabiotics Ultra Vitamin D 1000 IU Tablets

Vitabiotics Ultra Vitamin D

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  • Well-known brand
  • One-a-day tablet
  • Available without prescription
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WellKid Peppa Pig Vitamin D Soft Jellies 3 to 7 yrs

WellKid Vitamin D Soft Jellies

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  • Strawberry flavour
  • Chewable vitamin
  • Free from preservatives
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This content has been written and checked for quality and accuracy by
Mohamed Imran Lakhi Content Administrator GPhC: 2060586 Published on: 28/09/2020

What are Vitamins?

Vitamins are organic compounds which provide a range of functions in the body, including the growth and development of muscles and bones.

There are 13 vitamins:

  • A
  • C
  • D
  • E
  • K
  • B1 (Thiamin)
  • B2 (Riboflavin)
  • B3 (Niacin)
  • B5 (Pantothenic acid)
  • B6
  • B7 (Biotin)
  • B9 (Folate)
  • B12 (Cyanocobalamin)

With the exception of vitamin D, the body cannot make vitamins itself, so we rely on our diet to provide the right amount of vitamins. Eating a varied and balanced diet is an effective way of obtaining almost all of the vitamins we need to maintain good health.

Vitamin D is the only vitamin which our body makes itself. When exposed to UVB radiation from the sun, cells in the skin called keratinocytes convert 7-DHC (dehydrocholesterol) into the pre-vitamin D3.

Each vitamin plays a different role in the body. For example, vitamin C is well known for the treatment of scurvy - a condition caused by a vitamin C deficiency. Vitamin B12 is used by cells all over the human body which aids in the production of DNA and catalyses enzymatic reactions (speeds up reactions in the body).

Who should take vitamin supplements?

Most people do not need to take vitamin supplements, so long as they are eating a healthy and balanced diet.

However, some vitamin supplements are recommended for people with certain vitamin deficiencies or with certain medical conditions.

The NHS recommend that children aged between 6 months a 5 years take a daily multi-vitamin supplement. For advice on whether your child should take a vitamin supplement, speak to your doctor.

Public Health England (PHE) advise people to take vitamin D supplements during the months between October and March. Due to the dwindling sunlight during the colder months, the body doesn't produce as much vitamin D as it does during the spring and summer months.

Strict vegetarians and vegans are often advised to take vitamin B12 supplements. Vitamin B12 can prevent anaemia, eye diseases and osteoporosis.

Women who are pregnant, or trying to conceive, are recommended to take 400 mcg of folic acid. According to the NHS, you should start taking it before you stop using contraception. Folic acid is crucial while your child is developing and can reduce the chance of neural tube defects, such as spina bifida. It's always best to speak to your doctor before taking any health supplements if you are pregnant or plan on becoming pregnant.

If you are unsure whether you should take vitamin supplements, speak to your doctor. Depending on your diet and lifestyle, you may benefit from taking a vitamin supplement. For example, people who live a vegan diet are at a higher risk of developing a vitamin-b12 deficiency, so should consider taking a supplement of vitamin-b12.

While not strictly classed as vitamins, other mineral supplements such as zinc, calcium, and iron may also be beneficial alongside a healthy and balanced diet. Some foods are fortified with these metals - this means the food has added minerals.

Always speak to your doctor about vitamin and mineral supplements before taking them.

How do I know if I have a vitamin deficiency?

A vitamin deficiency is a lack of vitamins which the body needs to function normally. In many cases, the deficiency is caused by diet, such as not eating enough of a certain food group. Contrarily, deficiencies can be caused by malabsorption in the body. This is when the body is unable to process the vitamins effectively and so they are not absorbed properly.

Different vitamin deficiencies have varying effects on the body. For example, a lack of vitamin C can cause scurvy, resulting in symptoms such as swollen, bleeding gums, weakness and red or blue spots on the shins. A lack of vitamin A can affect vision, making it harder to see in the dark or, in extreme cases, cause blindness.

If you develop any symptoms which may be attributed to a vitamin deficiency, speak to your doctor.

Vitamin deficiencies are usually diagnosed with a blood test. You can get vitamin deficiency tests on the NHS. These are usually conducted by a healthcare professional in a clinic or hospital. A nurse or doctor will collect a venous blood sample. According to NICE, vitamin deficiency tests are usually reserved for those who present specific symptoms.

Alternatively, you can buy vitamin deficiency tests privately from online pharmacies and test centres. These tests are usually conducted by yourself at home. They involve collecting a blood sample from your finger using a lancet.

You can discuss your results with a healthcare professional. They will be able to determine whether you need need to take a vitamin supplement or make adjustments to your diet and lifestyle.

Types of vitamin supplements

Vitamin supplements are available in a number of different formulations.

Tablets and capsules are the most common form of vitamin supplement. These are usually swallowed whole with water. However, some people may have difficulty swallowing tablets. If you have difficulty swallowing tablets, speak to a pharmacist about other formulations available.

Some vitamins have chewable variations available. These are usually flavoured and are available for both adults and children. Chewable vitamins, particularly those made for children, may contain high amounts of sugar. Always check the label or ask a pharmacist if you are concerned about the amount of sugar in a vitamin supplement.

Effervescent vitamins are a popular formulation as they make it easier to take. These vitamin supplements are dissolved in water to create a drink. Much like chewable tablets, they are often flavoured to make them more palatable. However, effervescent tablets can contain high amounts of salt. If you have been told to cut down on your salt intake, speak to your doctor before taking effervescent tablets.


Aside from individual vitamins, which are often used to treat specific vitamin deficiencies, there are multi-vitamins which combined several vitamins and minerals into one tablet.

Multi-vitamins may be marketed in a number of different ways. Some are formulated to boost the health of men and women in different ways. Others may be designed to boost the immune system and keep the body's defences strong. Your doctor may recommend a multi-vitamin during pregnancy or during the winter to ensure your body is getting the right amount of vitamins and minerals.

Different multi-vitamins contain varying amounts of different vitamins. Some may contain more vitamin A or vitamin C. Moreover, multi-vitamins may also contain minerals like iron and zinc.

You can find the list of vitamins and minerals on the packaging. Sometimes, the amount of each vitamin is listed in either international units (IU) or milligrams (mg) and micrograms (mcg).

Where can I buy vitamins online?

Generally, most vitamin supplements are available over the counter from pharmacies, health food shops and supermarkets. They may offer different formulations, such as tablets, capsules or liquids.

Before you take any vitamin supplement, it's important to speak to your doctor. Vitamin supplements can interfere with other medicines you may already be taking. Your doctor may be able to suggest which vitamin supplements to take.

Some vitamin supplements, such as Fultium D3, are only available on prescription and are used to treat a diagnosed vitamin deficiency.

Table of contents

What are vitamins?

Who should take vitamin supplements?

How do I know if I have a vitamin deficiency?

Types of vitamin supplements


Where can I buy vitamins online?


NHS, 2020. Vitamins and minerals: Overview