Vitamin A – what do your numbers mean?
Have you had your Vitamin A level measured and are unsure what the numbers mean? Here's a clear explanation of the normal range, what a high or low level might mean, and when it makes sense to get tested.
What is the normal range for Vitamin A?
What is the normal range for Vitamin A?
The normal range for Vitamin A in the blood, measured as retinol, typically lies between 1.05 and 2.80 µmol/L for adults. There may be minor variations depending on the laboratory's measurement methods. For children and pregnant women, reference intervals can vary, and it is important to consider age and physiological conditions. Being close to the limit values can indicate an incipient deficiency or overdose, which should be assessed by a doctor.
What does a low level mean?
A low level of Vitamin A can lead to symptoms such as night blindness, dry skin, and a weakened immune system. Causes include malnutrition, fat malabsorption diseases such as celiac disease or chronic pancreatitis, and liver diseases. Particularly vulnerable groups are children in developing countries, pregnant women, and people with chronic diseases. If a deficiency is suspected, a doctor should be consulted to have the level measured and possibly start treatment with supplements.
What does a high level mean?
A high level of Vitamin A can lead to toxicity, with symptoms such as headache, nausea, dizziness, and in severe cases, liver damage and bone pain. Overdosing often occurs with long-term intake of high doses of supplements. Pregnant women should be particularly careful, as high levels can harm the fetus. If symptoms of overdose occur, medical attention should be sought immediately and supplement intake stopped.
Get your Vitamin A level tested
At Celto, you can order a blood test for Vitamin A directly online – without a referral from your doctor and without long waiting times. We have over 34 sample collection sites at public hospitals across Denmark, and your samples are analyzed at the same accredited laboratories used by the rest of the healthcare system. You will receive your results directly on sundhed.dk, just like all other blood tests from the public system.
How it works
When you order a blood test from Celto, you choose which markers you want to have tested – no doctor's referral necessary. After your purchase, you will receive an email with a link to our booking system, where you choose a time and place. The blood sample itself is taken by authorized healthcare personnel and typically only takes a few minutes.
Where you can get tested
Celto has over 34 sample collection sites at public hospitals and clinics throughout Denmark. You choose the location that suits you best among our partners, and there are typically available times within a few days. Find your nearest sample collection site →
How to get your results
Your blood samples are analyzed at the same laboratories used by your own doctor and the rest of the healthcare system, with the exact same quality and same tests. You will receive your results directly on sundhed.dk within a few business days, and Celto also sends an easy-to-understand review of your values so you know what the numbers mean.