CUH Logo

Mobile menu open

Inflammatory bowel disease and iron deficiency

Patient information A-Z

Children and young people are at risk of iron deficiency due to:

  • The inflammatory bowel disease itself
  • Poor appetite and poor nutritional intake

Reduced absorption of iron from food

Why is iron important?

Iron is a mineral that has many different roles in your body. Iron is especially important in making a component of red blood cells called haemoglobin. Haemoglobin transports oxygen around your body. If your iron levels fall you may become anaemic, feel tired, have more infections and have a poor appetite.

Where do I find iron?

You can help to maintain your iron levels by ensuring you include a number of good sources of iron in your diet every day. There are two types of iron in your diet:

  • haem iron from animal sources
  • non-haem iron from vegetables, fruits, nuts and eggs

Haem iron is better absorbed than non-haem iron. Individuals following a vegetarian, vegan or restricted diet are at higher risk of iron deficiency.

How much iron do I need?

An individual’s iron requirements can vary according to age, clinical condition, growth and sex but as a general guide the following daily amounts are recommended.

Amount of iron recommended per day
Age Amount
of iron recommended per day
Age 1-3 years Amount
of iron recommended per day
6.9mg
Age 4-6 years Amount
of iron recommended per day
6.1mg
Age 7-10 years Amount
of iron recommended per day
8.7mg
Age 11-18 years female Amount
of iron recommended per day
14.8mg
Age 11-18 years male Amount
of iron recommended per day
11.3mg
Age 19-50 years female Amount
of iron recommended per day
14.8mg
Age 19-50 years male Amount
of iron recommended per day
8.7mg
Age 50 + years male and female Amount
of iron recommended per day
8.7mg

Which foods contain iron?

Iron is found naturally in some foods whilst other foods have extra iron added to them.

The list below gives you information on the iron content of different types of food. Please note this information is correct at time of publication but sometimes ingredients and nutrition information changes. Food labels can contain more information.

Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Meat
Average
amount per portion (mg)
Food
type and portion size
Bacon (2 slices 60g)
Average
amount per portion (mg)
0.4
Food
type and portion size
Beef (roast 3 thin slices 84g)
Average
amount per portion (mg)
2.1
Food
type and portion size
Beef mince (small portion 100g)
Average
amount per portion (mg)
2.7
Food
type and portion size
Lamb (roast 3 slices 90g)
Average
amount per portion (mg)
2.1
Food
type and portion size
Lamb mince (small portion 100g)
Average
amount per portion (mg)
2.1
Food
type and portion size
Pork chop (70g)
Average
amount per portion (mg)
0.8
Food
type and portion size
Chicken (small breast 100g)
Average
amount per portion (mg)
0.5
Food
type and portion size
Liver (average of all types 1 slice 40g)
Average
amount per portion (mg)
3.0
Food
type and portion size
Kidney (average of all types 1 tbsp 40g)
Average
amount per portion (mg)
4.5
Food
type and portion size
Liver pate (slice 40g)
Average
amount per portion (mg)
2.4
Food
type and portion size
Pork sausages (2 large 80g)
Average
amount per portion (mg)
0.9
Food
type and portion size
Black pudding (30g)
Average
amount per portion (mg)
6.0
Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Fatty fish
Average
amount per portion (mg)
Food
type and portion size
Pilchards / Sardines (in tomato sauce 100g tin)
Average
amount per portion (mg)
2.7
Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Cereals and grains
Average
amount per portion (mg)
Food
type and portion size
Many breakfast cereals are fortified with iron. Check the labels of your usual cereal for information
Average
amount per portion (mg)
Food
type and portion size
Breakfast cereals
Average
amount per portion (mg)
Food
type and portion size
Branflakes (30g)
Average
amount per portion (mg)
4.0
Food
type and portion size
Coco pops (30g)
Average
amount per portion (mg)
2.4
Food
type and portion size
Cornflakes (30g)
Average
amount per portion (mg)
3.5
Food
type and portion size
Rice Krispies (30g)
Average
amount per portion (mg)
3.3
Food
type and portion size
Weetabix and Weetabix minis (2 large biscuits or 40g minis)
Average
amount per portion (mg)
4.5
Food
type and portion size
Weetabix with chocolate (2 biscuits)
Average
amount per portion (mg)
5.4
Food
type and portion size
Ready Brek (30g sachet)
Average
amount per portion (mg)
3.6
Food
type and portion size
Cheerios (30g)
Average
amount per portion (mg)
3.8
Food
type and portion size
Shreddies (30g
Average
amount per portion (mg)
2.2
Food
type and portion size
Breakfast biscuits e.g Belvita (4 biscuits)
Average
amount per portion (mg)
2.0
Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Bread per slice
Average
amount per portion (mg)
Food
type and portion size
Wholemeal
Average
amount per portion (mg)
0.9
Food
type and portion size
White
Average
amount per portion (mg)
0.6
Food
type and portion size
‘Best of both’
Average
amount per portion (mg)
0.8
Food
type and portion size
‘Vitamin Boost’
Average
amount per portion (mg)
2.1 (check label)
Food
type and portion size
Wholemeal pasta (medium portion 100g)
Average
amount per portion (mg)
1.5
Food
type and portion size
Brown rice (medium portion 100g)
Average
amount per portion (mg)
1.1
Food
type and portion size
Wholemeal flour (heaped tbsp 30g)
Average
amount per portion (mg)
0.7
Food
type and portion size
Croissants (1 croissant 44g)
Average
amount per portion (mg)
0.5
Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Beans and pulses
Average
amount per portion (mg)
Food
type and portion size
Baked beans (1/4 tin 100g)
Average
amount per portion (mg)
1.5
Food
type and portion size
Broad and butter beans (1/4 tin 60g)
Average
amount per portion (mg)
0.9
Food
type and portion size
Red lentils (1 tbsp 40g)
Average
amount per portion (mg)
1.0
Food
type and portion size
Green and brown lentils (1 tbsp 40g)
Average
amount per portion (mg)
1.4
Food
type and portion size
Chickpeas (1/4 tin 60g)
Average
amount per portion (mg)
0.9
Food
type and portion size
Hummous (1 tbsp)
Average
amount per portion (mg)
0.4
Food
type and portion size
Peas (30g 2 tbsp)
Average
amount per portion (mg)
0.4
Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Other cooked vegetables
Average
amount per portion (mg)
Food
type and portion size
Broccoli (1 spear 45g)
Average
amount per portion (mg)
0.3
Food
type and portion size
Purple Sprouting (small portion 40g)
Average
amount per portion (mg)
0.5
Food
type and portion size
Curly Kale (small portion 40g)
Average
amount per portion (mg)
0.8
Food
type and portion size
Spinach (1 tbsp 40g)
Average
amount per portion (mg)
0.7
Food
type and portion size
Spring Greens (small portion 60g)
Average
amount per portion (mg)
0.8
Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Seeds and nuts
Average
amount per portion (mg)
Food
type and portion size
Sunflower seeds (1 tbsp 16g)
Average
amount per portion (mg)
1.0
Food
type and portion size
Sesame seeds (1 tbsp 12g)
Average
amount per portion (mg)
1.2
Food
type and portion size
Tahini paste (1 heaped tsp 19g)
Average
amount per portion (mg)
2.0
Food
type and portion size
Cashew nuts (10 whole 10g)
Average
amount per portion (mg)
0.6
Food
type and portion size
Mixed nuts (small bag 25g)
Average
amount per portion (mg)
0.7
Food
type and portion size
Peanut butter (1 tbsp 15g)
Average
amount per portion (mg)
0.3
Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Dried fruit (ready to eat)
Average
amount per portion (mg)
Food
type and portion size
Apricots (3 dried 24g)
Average
amount per portion (mg)
0.9
Food
type and portion size
Prunes (3 dried 24g)
Average
amount per portion (mg)
0.6
Food
type and portion size
Dates (3 dried 45g)
Average
amount per portion (mg)
0.6
Food
type and portion size
Figs (2 dried 40g)
Average
amount per portion (mg)
1.6
Food
type and portion size
Mixed fruit (1 heaped tbsp 25g)
Average
amount per portion (mg)
0.6
Food
type and portion size
Raisins (1 heaped tbsp)
Average
amount per portion (mg)
1.0
Food
type and portion size
Average
amount per portion (mg)
Food
type and portion size
Other fruit
Average
amount per portion (mg)
Food
type and portion size
Canned blackcurrants in juice (1/4 can 70g)
Average
amount per portion (mg)
0.7
Food
type and portion size
Canned cherries in syrup (1/4 can 105g)
Average
amount per portion (mg)
0.2
Food
type and portion size
Canned prunes in juice (1/4 can 100g)
Average
amount per portion (mg)
2.2
Food
type and portion size
Canned raspberries in syrup (1/4 can 75g)
Average
amount per portion (mg)
0.4
Food
type and portion size
Raspberries (15 fruit 60g)
Average
amount per portion (mg)
0.4

How do I make sure the iron I eat is absorbed?

Haem iron from meat sources is more readily absorbed than non-haem iron sources. Including a good source of vitamin C with a meal can help the iron from non-haem sources to be absorbed. An example of this could be a glass of orange juice or some fruit or vegetables with your meals.

Drinking tea or coffee with your meals can stop the iron in your diet from being easily absorbed, so keep these drinks away from mealtimes.

Should I have iron supplements?

We monitor your iron levels regularly and will let you know if they are low. Iron supplements can be prescribed if needed but can cause stomach aches at higher doses. Iron supplements are sometimes given at low doses two to three times a week. If they do not improve the anaemia or cause side-effects, children sometimes require an intravenous infusion to restore iron levels more quickly.

If you do not think you are managing to meet your iron requirements speak to your doctor, nurse or dietitian.

We are smoke-free

Smoking is not allowed anywhere on the hospital campus. For advice and support in quitting, contact your GP or the free NHS stop smoking helpline on 0800 169 0 169.

Other formats

Help accessing this information in other formats is available. To find out more about the services we provide, please visit our patient information help page (see link below) or telephone 01223 256998. www.cuh.nhs.uk/contact-us/accessible-information/

Contact us

Cambridge University Hospitals
NHS Foundation Trust
Hills Road, Cambridge
CB2 0QQ

Telephone +44 (0)1223 245151
https://www.cuh.nhs.uk/contact-us/contact-enquiries/