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Postal service updates: October - December

Vitamin C Blood Test

Vitamin C Blood Test


A test to measure the level of vitamin C in your blood which helps the body form and maintain connective tissue, including bones, blood vessels and the skin.
Blood sample 1 biomarker included Results estimated in 6 working days from sample receipt at lab
Vitamin C Blood Test
Vitamin C Blood Test
Vitamin C Blood Test
Vitamin C Blood Test

What's included?

Biomarker profile

  • Vitamins

Vitamins (1 Biomarker)

Special instructions

Prepare for your Vitamin C Blood Test by following these instructions. Do not eat for 12 hours prior to your test. Drink plenty of water, if you take medication then you are allowed to take it as you would normally. You should take this test before you take any medication or vitamin/mineral supplements.

From the expert

Vitamin C which is also known as ascorbic acid is a water-soluble vitamin. The body is unable to make or store vitamin C, so we obtain it through the foods we eat. Alongside being a powerful antioxidant, vitamin C helps the body form and maintain connective tissue, including bones, blood vessels, and the skin as it is required for the biosynthesis of collagen. Vitamin C also helps to strengthen the immune system and aid the absorption of iron in the body.

Vitamin C deficiency causes a range of symptoms in the body including inflammation and bleeding of the gums, dry hair and skin and slow wound healing. People with gastrointestinal conditions and some types of cancer may be more susceptible to developing a vitamin C deficiency. A lack of vitamin C in the diet over a long period of time can lead to a condition called scurvy, a disease resulting from the breakdown of collagen. This condition is rare, as most people get enough vitamin C through their diet. Scurvy affects muscle and bone strength but is easily treated by eating foods rich in vitamin C and taking vitamin C supplements.
Those who supplement vitamin C must be aware that taking an excess, such as 1000 mg daily, may irritate the digestive tract. However, the body excretes what it does not use, so instances of overdosing on vitamin C are rare.

Dr Sam Rodgers MBBS, MRCGP
Chief Medical Officer


Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our UKAS accredited partner laboratories.

Dr Sam Rodgers - Chief Medical Officer

Expert advice with your results

Get trusted advice and comments from one of our doctors based on your results.

Your personal health centre

Your personal health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help
Questions? Let us help

Questions? Let us help

Our customer care team is on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.


Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.