What is the difference between a food allergy and a food intolerance?

Food Allergy
  • The body's IgE immune system is activated by the immediate ingestion of the trigger food.
  • Reactions usually occur almost instantly or within 2 hours following exposure to the 'trigger' food.
  • Symptoms may include: difficulty breathing, rashes, swelling, runny nose and anaphylactic shock. These can potentially be life threatening and require urgent medical attention.
Food Intolerance
  • The body produces IgG antibodies to specific food proteins consumed in the body. 
  • Reactions are usually delayed and symptoms may take up to three days to appear.
  • You can be intolerant to several different food groups at the same time.
  • Sufferers can experience multiple symptoms, from headaches and brain fog to bloating, diarrhoea, lethargy and a general feeling of being unwell.

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