Caffeine sensitivity

Many people consume caffeine without any problems, but others may experience diarrhea, nervousness, insomnia, and other symptoms. This is due to the high consumption of more than 400 mg of caffeine per day, which is equivalent to about four cups of coffee. And there are people who can have negative reactions after getting 95 mg of caffeine. This is either due to a non-allergic food intolerance to caffeine, or less commonly the allergic response of the immune system, just like any other food allergy. The causes of caffeine sensitivity are not yet known, but it is believed that genetics may play a role.[1]

Symptoms of caffeine sensitivity

Symptoms of caffeine sensitivity begin soon after caffeine intake, or can appear hours after drinking it. The physical symptoms of caffeine sensitivity are similar to those caused by a food allergy to any other food, and the following are the most important of these symptoms:[2]

  • Itching in the mouth, tongue or lips.
  • Swelling of the lips or tongue.
  • goosebumps.
  • Difficulty breathing due to swelling of the throat or tongue.
  • coughing;

Caffeine allergy treatment

If a person has symptoms of caffeine sensitivity, they should stop consuming any food or drink that may contain caffeine, and tell their doctor immediately. It is recommended to take antihistamines that may reduce symptoms such as itching and swelling. But the only way to prevent caffeine sensitivity is to avoid foods and drinks that contain caffeine.[2]

Foods to avoid when allergic to caffeine

Caffeine and all products that go into it should be avoided if you have a caffeine allergy, so check the ingredients of foods carefully. Caffeine may be present in foods and beverages such as:[3]

  • Black and green tea.
  • Soft drinks.
  • Cocoa powder and chocolate.
  • Energy Drinks.
  • All kinds of coffee.


  1. ↑ “An Overview of Caffeine Allergy”,, Retrieved 1-16-2019. Edited.
  2. ^ a b “Caffeine Allergy”,, Retrieved 1-16-2019. Edited.
  3. ↑ “Do I Have a Coffee Allergy?”,, Retrieved 1-16-2019. Edited.

Caffeine sensitivity

writing – on the date : – Last updated: 2022-06-14 06:51:01