Food Allergy

Please see our free downloadable Factsheets at bottom of this page for more information about the different types of food allergy, including peanut allergy, egg allergy and milk allergy.

What are the top 14 food allergens?

There are 14 major food allergens which need to be mentioned (either on a label or through provided information such as menus) when they are used as ingredients in a food product or meal. However you can be allergic to any food substance.

The top 14 food allergens are:

Celery; Cereals containing gluten; Crustaceans; Eggs; Fish; Lupin; Milk; Molluscs; Mustard; Tree Nuts; Peanuts; Sesame seeds; Soya and Sulphur dioxide (sometimes known as sulphites)

Below, we have given a brief overview of some of the most common of the top 14 food allergies. More detailed information can be downloaded at the bottom of the page.

 

Did you know...

  • 11-26m

    Members of the European population are estimated to suffer from food allergy

    (Pawankar R, et al, 2013)

  • Up to 10%

    Of adults and children have a food hypersensitivity

    (The Association of UK Dietitians (BDA), 2015)

  • Between 3-6%

    Of Children in the developed world are affected by food allergy

    (BSACI, 2011)

What are the symptoms of food allergy?

Normally food allergy symptoms appear within a few minutes of eating the offending food, although they may be delayed by up to a couple of hours. The symptoms are usually those of ‘classic’ allergy, some of which are listed below:

Gut reactions: Abdominal pain, vomiting, diarrhoea

Skin reactions: Itching and swelling (rash or nettle rash)

Respiratory reactions: Runny nose, sneezing, wheeze, cough

At the bottom of this page you will find our downloadable Food and Symptoms Diary. Use this to track your symptoms to discuss with your GP.

How can I manage my food allergy?

You can find a whole host of useful tips on management and avoidance on our relevant Factsheets below but there are 3 key things to be on top of when it comes to managing a food allergy:

  1. Identify and avoid the cause (if possible)
  2. Recognise the symptoms of an allergic reaction by keeping a food diary
  3. Know what to do if it happens again
Play video

Ella and Isobel's Story

Sisters Ella and Isobel share a severe allergy to milk and eggs. With their mum, they open up about the challenges they face at school and how a lack of understanding about allergy and its severity effects them every day.

Peanut allergy

Peanuts are a common cause of food allergy, caused when the immune system reacts to the protein found in peanuts. Peanut allergy affects around 2% (1 in 50) of children in the UK and has been increasing in recent decades. It usually develops in early childhood but, occasionally, can appear in later life.

It is important to know that peanuts are a legume and from a different family of plants to tree nuts. A peanut allergy does not automatically mean an allergy to tree nuts although it is not uncommon to be allergic to both peanuts and some tree nuts.

Milk allergy

Cow’s milk (protein) allergy (CMA or CMPA) is one of the most common food allergies to affect babies and young children. Most children will have outgrown their allergy to milk by the time they reach school age (around 5 years of age). In a small number of people who do not outgrow their allergy to cow’s milk it will persist into adulthood. Where this happens people are more likely to experience more severe allergic reactions. Adult onset cow’s milk allergy is very rare and as a result there has been little research carried out about it adult-onset food allergies and why they might happen.

Egg allergy

Egg allergy is much more common in young children than in adults. Most children with egg allergy will outgrow it. This is just one important reason why a child with a food allergy should be seen by an Allergy Specialist. Having an egg allergy can mean being allergic to all forms of egg (well-cooked, loosely cooked and raw) or only to loosely cooked and raw egg. You only need to avoid the forms of egg that you react to.

Examples of these different forms can be found on our Factsheet below.

Do please check ingredients to ensure that you are:

  • Not excluding foods unnecessarily
  • Not eating foods that contain egg by mistake

It is easy to avoid eggs that are served on their own when they look like an egg; however they are often hidden in prepared and manufactured foods so beware.

Play video

Tamsin and Arlo's Story

Click here to view Tamsin's story, an inspirational video about her Son Arlo and the difficulties they face as a family.

Getting help

For concerns over suspected food allergy symptoms make an appointment with your GP or healthcare professional as soon as possible. If you or your child have a severe allergic reaction then do not delay in getting medical help, call for an ambulance and tell the operator it is anaphylaxis.

Go equipped

Taking photos and/or videos of allergic symptoms can help with a food allergy diagnosis.

Make a note of the following:

This will help your doctor with taking a detailed allergy focused history (information gathering) which is the first step in diagnosing a food allergy and to help decide what type of allergy testing may be helpful. Your GP may need to make a referral to an allergy service for allergy testing to be carried out.

  •  Suspected food culprit
  • Have you eaten this food before?
  • How much of the food was eaten? (eg one baby spoon or half a tablespoon)
  • Was the food cooked lightly/baked, raw, preserved etc ?
  • Ingredients list (keep packaging of a baby food jar/pouch/food packet etc)
  • What were the allergic symptoms?
  • How soon did symptoms appear? How long did they take to go?
  • Was any medication given?
  • Did you go to A&E or another healthcare service?
  • Were you already unwell at the time of this allergic reaction? Were any other factors involves e.g. happened whist exercising.

Food and symptoms diary

Keeping a food and symptoms diary can be useful to help your doctor with a diagnosis. This is particularly important where the suspect food culprit is not clear and/or symptoms persist when the food thought to be a problem is removed from the diet.

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resources

Food and Symptoms Diary

Food and symptoms diaries can help yourself and a healthcare professional to determine what foods may be causing you or a loved ones reactions.

Food allergy labelling?

All pre-packaged food must show a list of ingredients which clearly identifies all the ingredients. There are different regulations for foods that are not pre-packaged and which are prepared on-site in smaller food businesses e.g. a café/sandwich shop/deli. There is still a requirement to provide information on the ingredients and allergen content but how this information is shared is up to the individual business.

They may choose to provide this information in a written form, for example on a chalk board, or they may communicate the information verbally.

Allergy Alerts

Sometimes foods have to be withdrawn or recalled if there is a risk to consumers. This could be because the allergy labelling is missing or incorrect or if there is any other food allergy risk, such as cross contamination.

We are informed by the Food Standards Agency and we alert the public via our website, social media and by sending allergy alert emails to those who have requested them from us.

Sign up here to receive Allergy Alerts

Translation Cards

Translation cards are available from Allergy UK and will ensure others are made aware of your allergy despite any language barriers.

A set of three plastic cards per language are provided, each about the size of a credit card. The cards feature an allergy alert message, an emergency message and a message for use in restaurants to ensure that your food order is free from the particular allergen that causes your reaction.

Find out more about our Translation Cards

Food Allergy Factsheets

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