Healthdirect Free Australian health advice you can count on.

Medical problem? Call 1800 022 222. If you need urgent medical help, call triple zero immediately

healthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.

beginning of content

Vitamin A deficiency

4-minute read

Key facts

  • People can largely avoid vitamin A deficiency in developed countries like Australia where fresh produce is generally available.
  • Vitamin A supports good vision. Symptoms of vitamin A deficiency include some eye diseases.
  • If you are generally healthy and meet the recommended daily intake (RDI) of vitamin A, you likely get enough vitamin A.
  • Taking too much vitamin A over time, particularly as a supplement, can cause vitamin A to slowly build up in your body. This may cause health problems.

What is vitamin A deficiency?

Vitamin A deficiency happens when your body doesn’t have enough vitamin A. Vitamin A deficiency usually results from what you do and don’t eat. However, a health condition can also cause it. Your body needs a certain amount of vitamin A to function well.

Vitamin A deficiency is rare in developed countries like Australia where you can generally get fresh produce. You can get enough vitamin A by eating fruit, vegetables and health proteins.

Vitamin A is a fat-soluble vitamin. This means it gets stored in your body’s own cells. If you don’t eat vitamin A-rich foods for a couple of days, you are unlikely to be deficient.

Go here for more information on vitamin A and your health and why you need vitamin A-rich foods in your diet.

What are the symptoms of vitamin A deficiency?

Vitamin A supports good vision. Symptoms of lacking vitamin A include struggling to adjust to low light (‘night blindness’) and xerophthalmia (very dry eyes due to poorly functioning tear ducts).

Problems with vision can often be the first sign of illness associated with vitamin A deficiency.

Am I at risk of vitamin A deficiency?

Because people can generally get vitamin A-rich food in Australia, most deficiency disorders result from illness, injury or restrictive diets.

People at risk of vitamin A deficiency include those with intestinal problems that reduce their ability to absorb vitamin A. Other health conditions linked with vitamin A deficiency are:

  • liver disease
  • alcoholism
  • major gastrointestinal surgery

Anorexia nervosa and other psychiatric disorders can cause poor absorption of vitamin A from foods, which can lead to deficiency.

The Australian Government publishes the recommended dietary intake (RDI) for all vitamins. It is important to check that you get the correct amount of each vitamin. The best way to give your body vitamins is to eat a varied diet that includes a range of fresh fruit and vegetables. The RDI for vitamin A ranges from 250μg (micrograms) daily for infants 0-6 months of age, to 900μg daily for males and 700μg daily for females.

If you are concerned about how much vitamin A you are getting, particularly if you are pregnant or breastfeeding, speak with your doctor or consult a dietitian for advice.

FIND A HEALTH SERVICE — Our Service Finder can help you find doctors, pharmacies, hospitals and other health services.

What happens if I have too much vitamin A?

Vitamin A is a fat-soluble vitamin and can accumulate in your body. If you take in more than you need over an extended period, vitamin A will slowly build up in your body. You are unlikely to experience health problems if you get many vitamins from food. However, vitamin supplements (such as vitamin pills or drinks) may cause health problems.

In some rare cases, where a diet involves eating lots of a certain food, someone might get an unhealthy build up over time. For example, very large quantities of carrot juice or liver might cause vitamin A to build up.

There is also an increased risk of birth defects associated with having too much vitamin A. If you are pregnant, it is important that you don’t take too much.

The NSW Cancer Council has reviewed the data on the safety of high-dose beta-carotene. It has concluded that people should avoid taking high doses (more than 18 mg) of beta-carotene supplements, especially if they smoke.

There is also some evidence to suggest that having more than an average of 1.5 mg (1,500 µg) a day of vitamin A over many years can affect your bones, making them more likely to fracture as you get older.

This is important for older people to consider, especially post-menopausal females, who are already at increased risk of osteoporosis.

If you are concerned that you have taken too much of a vitamin A supplement, call the Poisons Information Centre (13 11 26) immediately.

Learn more here about the development and quality assurance of healthdirect content.

Last reviewed: May 2022


Back To Top

Need more information?

These trusted information partners have more on this topic.

Top results

Vitamin and mineral supplements - Better Health Channel

Vitamins are organic compounds used by the body in small amounts for various metabolic processes.

Read more on Better Health Channel website

Vegetarian and vegan eating - Better Health Channel

betterhealth.vic.gov.au

Read more on Better Health Channel website

Vitamins & supplements | Jean Hailes

For many people, at many times throughout their lives, eating a well-balanced diet - one that provides you with all the vitamins and minerals that you…

Read more on Jean Hailes for Women's Health website

Children and vitamins

Very few kids actually need to take vitamin and mineral supplements, they can get everything they need from a balanced diet.

Read more on Pregnancy, Birth & Baby website

Vitamin and mineral supplements: when are they needed? - MyDr.com.au

Vitamin and mineral supplements won't convert poor food choices into a healthy diet, but relevant quantities can address deficiencies at certain life stages.

Read more on myDr website

Scurvy returns to Australia due to poor diet - MyDr.com.au

Scurvy, a disease caused by lack of vitamin C, has resurfaced in Australia in Western Sydney. Symptoms include swollen bleeding gums and joint pain.

Read more on myDr website

Vegetarian diets: children & teenagers | Raising Children Network

Children and teens who choose vegetarian diets need to eat a wide variety of fresh foods to get enough protein, omega-3 fatty acids, iron and vitamin B12.

Read more on raisingchildren.net.au website

Vitamins and minerals: which supplements should you be taking? | Queensland Health

There are hundreds of vitamin and mineral supplements on the market. Should you be taking them?

Read more on Queensland Health website

The Five Food Groups | Eat For Health

Guideline 2 recommends we enjoy a wide variety of nutritious foods from the five groups every day The key to eating well is to enjoy a variety of nutr

Read more on NHMRC – National Health and Medical Research Council website

Breastfeeding diet, exercise & lifestyle | Raising Children Network

A healthy breastfeeding diet has a wide variety of foods from the five main food groups. Physical activity is also important for your health and wellbeing.

Read more on raisingchildren.net.au website

Healthdirect 24hr 7 days a week hotline

24 hour health advice you can count on

1800 022 222

Government Accredited with over 140 information partners

We are a government-funded service, providing quality, approved health information and advice

Australian Government, health department logo ACT Government logo New South Wales government, health department logo Northen Territory Government logo Government of South Australia, health department logo Tasmanian government logo Victorian government logo Government of Western Australia, health department logo