Vitamin A (NLOSS)
Patient Information Factsheet
North London Obesity Surgery Service (NLOSS)
What does vitamin A do?
- Vitamin A is important for healthy eyes, the immune system, skin, lungs, and for how your stomach, bowels, bladder, and urine system work.
- It is also important in wound healing and cell reproduction.
What happens if my vitamin A is low/if I do not get enough vitamin A?
- Changes in vision are often the first sign that someone may not have enough vitamin A.
- You may notice that you cannot see as well at night.
- For example, it may be harder to drive at night.
- You might not see well in the dark, need lights on earlier, or find it harder to move around in low light, like going to the bathroom.
- You may also notice that your eyes feel dry and become easily irritated.
- Sometimes, early vitamin A deficiency can also cause dry hair, a dry mouth, dry or itchy bumpy skin, broken nails, and infections that happen more often.
- If vitamin A deficiency is very bad or continues, serious problems can happen. The most serious problem is permanent blindness.
What are other symptoms?
- Loss of tears
- Sores in the eyes
- Fatigue
- Dry cracked lips, mouth sores
- Diarrhoea
- Bladder infections
- Vaginal infections
- Upper/lower respiratory infections
- Poor and delayed wound healing
Where can I get vitamin A?
- There are two kinds of vitamin A.
- One is from plants, called beta-carotene, and the other is from animals, called retinol.
- Beta-carotene is found in red, orange and green vegetables. It is also found in some fruits such as carrots, cantaloupes, apricots, mangoes, sweet potatoes, red peppers, tomatoes, peas and spinach.
- Retinol is found in foods that come from animals such as whole eggs, milk, and liver. It is also found in fortified cereals and margarine.
- Vitamin A can also be taken as a dietary supplement in multivitamins and in capsules or tablets.
- As a supplement, you can find both beta-carotene and retinol.
- If you have a vitamin A deficiency, your Doctor will probably ask you to take a vitamin A supplement. They will also ask you to pay attention to what you are eating.
- Most of the time your Doctor will ask you to take retinol instead of beta- carotene.
Other important things
- High Retinol levels can be a problem in pregnancy. If you are pregnant, it is important talk to your Doctor or Midwife about how much vitamin A is safe for you to take.
- There is no safety issue with beta-carotene in pregnancy.
Further information
Please visit the NHS website www.nhs.uk/conditions/vitamins-and-minerals/others/
Contact our service
Should you need more information, please contact our Specialist Bariatric Dietitians on 0207 288 5989, Monday to Friday, 8am to 4pm.
Published:
15 Apr 2026
Review:
15 Apr 2028
Reference:
SC/Bariatr/VitA/02

