Vitamin D Test Kit

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Fastest delivery available: 19/04/2024

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Fultium D3 Capsules

Quantities 800iu
30 £22.99
60 £33.99
Registered UK Pharmacy number 9012073

Medication features

Vitamin D is important for our health and we need to keep the right level in our body to avoid health problems. You can order vitamin D home test kits and treatment online if it's right for you.

Using a home test works in the following steps:

  • Place an order and get your kit delivered to your door (delivery is free)
  • Collect your sample by following the instructions in the test kit
  • Send your samples to our UK-based, accredited partner laboratory (postage is free) 
  • Once your results are available (in 2 to 3 days), our team will review your results  
  • One of our medical team will contact you, via a secure and confidential message in your patient account, to let you know your results and give you advice and support on what to do next


View product details
  • Home Test Kit
  • Easy to use
  • 3 Easy Steps

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What Is Vitamin D?

Vitamin D helps maintain the balance of calcium and phosphate in your body. It does this by promoting calcium and phosphate absorption from the kidneys and intestines.

Calcium and phosphate are needed for the health of your muscles, bones and teeth. If you have a lack of vitamin D it could result in bone pain caused by osteomalacia (a condition characterised by a softening of the bones) and bone deformities such as rickets (a condition affecting children’s bone development).

How Much Vitamin D per Day Do I Need?

The average recommended daily intake of Vitamin D for men, women, and children over the age of 1 year is 10 micrograms of vitamin D per day. Babies up to 1 year old required between 8.5 and 10 mcg of vitamin D per day.

The government advises that everyone could benefit from taking vitamin D daily in the autumn and winter.

For more information, please read our guide to vitamins and supplements.

Vitamin D Benefits

Vitamin D is produced naturally by the body when you are exposed to sunlight, and you can get vitamin D from some foods and supplements. From regulating calcium and phosphorus absorption to facilitating immune system function; vitamin D plays an important role in the body’s function.

Let’s look closer at some of vitamin D’s benefits:

  • Vitamin D may protect against respiratory infections – if you aren’t getting enough vitamin D, increasing your vitamin D levels could mean you get fewer colds and flu. A study showed that vitamin D-deficient participants saw a 12 percent reduction in respiratory infection risk after taking a vitamin D supplement.
  • Vitamin D may improve seasonal depression symptoms – if you aren’t getting enough vitamin D, research by the National Institute of Mental Health indicates you could be at a higher risk of seasonal depression (seasonal affective disorder).
  • Vitamin D may help fight diseases – from reducing the risk of multiple sclerosis to lowering your chances of heart disease and autoimmune disease; getting enough vitamin may have a role to play in fighting several diseases.
  • Vitamin D may support weight loss – research indicates that vitamin D can support weight loss. A study that gave vitamin D supplements to people with obesity who were following a diet plan found that they lost more weight and fat mass than a placebo group who were only following a diet plan.

Low Vitamin D Symptoms

If you aren't getting enough vitamin D, this can lead to Vitamin D deficiency, which can cause all sorts of problems. The signs and symptoms of vitamin D deficiency in adults may include:

  • Bone pain
  • Tiredness
  • Muscle weakness
  • Muscle cramps
  • Muscle aches
  • Mood changes (including depression)

Vitamin D deficiency can also result in weak or painful muscles in children. When children are not getting enough vitamin D, they may also get a rare disease called rickets which causes incorrect bone development, bone pain, muscle weakness and deformities in the joints.

At Cloud Pharmacy, we offer Fultium D3 capsules that help treat vitamin D deficiency in adults. It contains the active ingredient cholecalciferol, also known as vitamin D3. Each capsule contains 20 micrograms of vitamin D.

What Causes Vitamin D Deficiency?

Vitamin D can be caused by several medical conditions, surgical procedures, and medications.

The medical conditions that can cause vitamin D deficiency include:

  • Coeliac disease
  • Crohn’s disease
  • Cystic fibrosis
  • Obesity
  • Kidney diseases
  • Liver diseases
  • Weight loss surgeries such as gastric bypass, duodenal switch, and sleeve gastrectomy
  • Medications such as steroids, laxatives, seizure control drugs, cholesterol-lowering drugs, rifampicin (a drug
  • for tuberculosis) and orlistat (an obesity treatment)

There are also certain risk factors that could mean you are more likely to have a vitamin C deficiency. You may be more likely to get vitamin D deficiency if:

  • You have mobility problems and don’t go outside very often
  • You are an older person, as the skin’s ability to produce vitamin D gradually decreases with age
  • You have dark-coloured skin, as people with darker skin have less ability to produce vitamin D compared to people with lighter skin

Infants who are only fed breast milk are also at a higher risk of having low vitamin D, as human breast milk only contains a small amount.

Vitamin D Test Kit

If you want to find out whether you have vitamin D deficiency, you can get a diagnosis through a vitamin D test kit. Vitamin D tests determine how much vitamin D you have in your bloodstream. They involve taking a blood sample to measure the amount of 25-hydroxy vitamin D, one of two types of vitamin D in the blood.

Our vitamin D tests can be done at home. They are quick, convenient and accurate. They can monitor or screen for bone disorders, and measure vitamin D levels effectively. Cloud Pharmacy’s home test kit requires the sample to be sent off in a pre-paid envelope to a registered laboratory. This ensures precise and swift results that will be sent to you within 2-5 working days.

Order a Vitamin D Test Online

You can order a vitamin D home test kit straight to your door through Cloud Pharmacy’s website. A short consultation is not required and the test kit can be purchased straight away and delivered to your door with next-day delivery (before 3 pm). If you believe you have vitamin D deficiency and would like to get tested, order your home test kit today.

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What Does Vitamin D Test For?

The purpose of a vitamin D test is to check vitamin D levels; it looks for the amount of 25-hydroxy vitamin D in your bloodstream. It may be ordered if you have symptoms of vitamin D deficiency, such as bone weakness and softness, or to monitor your vitamin D levels if you have a chronic condition like asthma, an autoimmune disease, or psoriasis. A vitamin D test may be advised for your child if they are showing signs of incorrect bone development or bone malformation.

You may also be recommended a vitamin D test if you are at a higher risk of vitamin D deficiency due to:

  • Previous weight loss surgery
  • Having a bone disorder
  • Being an older person (as vitamin D deficiency risk increases with age)
  • Having darker skin
  • Not getting enough exposure to sunlight

How to Do Vitamin D Test

The following steps are required to take a vitamin D test kit:

  1. Wash your hands thoroughly with soap and rinse with clear warm water
  2. Remove the buffer vial, lancets, the dropper and alcohol pad from the packet
  3. You may be asked to fill out any labels and or booklets
  4. Once the paperwork is complete and the labels have been put on the correct test tube and bags, carefully remove and dispose of the lancet cap. The lancet is a single-use lancet so make sure you do not prematurely fire the lancet
  5. Use the alcohol pad to clean the puncture site located on the fingertip of the middle or ring finger 
  6. Hold the lancet (on the side from where the cap was removed) firmly against the fingertip and press the fire button. You may feel a slight pinch but it should not hurt
  7. Massage the finger that was pricked to obtain a blood drop
  8. Gently put the sample tube in contact with the edge of the blood drop. You should fill the dropper up to the line
  9. Seal the sample tube tight with the lid and place it in the protective packaging
  10. Place the contents into the box and seal
  11. Place the test kit box into the prepaid envelope and post it
  12. The vial will be sent to the laboratory address, following the instructions provided 
  13. Wait a few days for it to be tested by an accredited laboratory before you are contacted with the results

A finger-prick home blood test for vitamin D won’t take more than a few minutes.

Understanding Vitamin D Test Results

The home test kit requires the sample to be sent to a laboratory, please understand it typically takes from 2 to 5 days until your vitamin D test results are ready. Your results will indicate if your vitamin D levels are suboptimal, inadequate or sufficient.

According to the NHS, the categories for the vitamin D results are as follows:

  • 25-hydroxyvitamin D of less than 25 nmol/L is regarded as suboptimal
  • 25-hydroxyvitamin D of 25-50 nmol/L is regarded as inadequate for the average person
  • 25-hydroxyvitamin D of greater than 50 nmol/L is sufficient for most people

If test results show that you do have low vitamin D, you should share them with your doctor and get advice on the best way to increase your vitamin D levels.

Sources of Vitamin D

If you're suffering from vitamin D deficiency, there are several ways you can increase your intake, including incorporating it into your diet. Sources of vitamin D include:

  • Sunlight – during the warmer months, you can get enough vitamin D by spending time outdoors. Some people only need around half an hour of sunlight a day, but this can vary according to your skin colour
  • Food – there is not a significant amount of vitamin D in food, and this makes it harder to get the vitamin D you need from your diet alone. Among the foods that do contain vitamin D are red meat, oily fish, fish liver oil, eggs, and foods with vitamin D added such as milk alternatives and infant formula
  • Supplements – as we don’t get enough vitamin D from sunlight in the UK between October and March, the government recommends taking vitamin D supplements especially if you are at a higher risk of having a vitamin D deficiency

How Soon Will I Feel Better After Taking Vitamin D?

When it comes to taking supplements, it depends on how much vitamin D you’re getting. Those with the lowest levels of vitamin D should feel an improvement after just a few days. Whereas, those who have a relatively normal level of vitamin D may have to wait at least a week before they start to feel more energised and healthier.

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