Vitamin D

Get treatments and tests for low vitamin D levels with free and fast home delivery.

Prices from £9.99

To get a treatment, fill in a brief medical questionnaire. A doctor will review and prescribe treatment if it’s right for you. For test kits, you can just place an order. Once you’ve sent your sample to our UK accredited partner laboratory, results and advice from our doctors will be ready in 2 to 3 days.

Vitamin D is essential for a human body to work as it should. It’s present in some foods, and plays an important part in keeping bones strong.

Vitamin D regulates the amount of calcium and phosphate in your body. These nutrients are needed for healthy teeth, bones, and muscles.

Please note, when you request a generic (non branded) treatment, the product you receive may look slightly different than what we show on our website. The active ingredient in the medication will be exactly the same though. This is because we use a range of manufacturers to ensure we always have enough stock for patients. If you have any questions, you can message our Customer Support team or doctors through your account.


In stock. Prices from £39.99

1 Valupak pack of 60 1000iu vitamin D3 tablets and 1 box of SunVit-D3 10000iu cholecalciferol oral film coated tablets
Vitamin D Starter

In stock. Prices from £29.99

1 Valupak pack of 60 1000iu vitamin D3 tablets
Vitamin D Continuation

In stock. Prices from £9.99

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Who can get treatment online

Adults can get treatment online, if a vitamin D insufficiency or deficiency is confirmed by a blood test.

How to get treatment online

  1. Fill out a short online assessment about your health
  2. Place a request for your preferred treatment
  3. A ZAVA doctor will check your assessment to see if it is right for you
  4. It will then be posted to your preferred address or you can collect it from a local Post Office instead

Common side effects of vitamin D supplements and treatments

We offer Cholecalciferol, in dosages of 1000 IU and 10000 IU. Side effects of Cholecalciferol can include:

  • nausea
  • vomiting
  • loss of appetite
  • stomach ache
  • constipation
  • thirst
  • needing to pee more often
  • confusion
  • muscles weakness
  • bone pain
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Medically reviewed by:
Dr Nicholas Antonakopoulos Accreditations: MBBS, BSc

Dr Nicholas Antonakopoulos graduated from the University of London in 2006. He did his postgraduate training in hospitals in the London area, and he trained for four years in Trauma and Orthopaedic Surgery before completing his training in General practice in 2015.

Meet our doctors

Last reviewed: 02 Nov 2018



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