Nightshade Allergy: Read To Know How Vegetables And Fruits Can Cause Allergies

Nightshade allergy is caused because of allergens such as vegetables and fruits, know about this allergy to be aware of the reaction.

Puru Bansal
Written by: Puru BansalPublished at: May 16, 2022Updated at: May 16, 2022
Nightshade Allergy: Read To Know How Vegetables And Fruits Can Cause Allergies

Allergies are very complex to tackle because most of the people remain unaware for the most time that they are suffering from some kind of allergy. What do you generally imagine from an allergy? Something related to dust, pollutants, mites, etc. Right? But what if it is not all, there are many allergies that are so close to you that you might not even notice. Tomatoes, eggplant, peppers and white potatoes are some common food items that you consume in your daily life. However, these food items can also be cause of some serious allergy, this type of allergy is called nightshade allergy. You can have allergy from coming in close contact with the food or by eating it. Here is what you should know about nightshade allergy. 

What is Nightshade Allergy? 

In case a person develops an allergy because of certain vegetables or fruits, then it can be categorized as nightshade allergy. We spoke to Dr. Rupam Goel, Head Dermatologist in Sahara Hospital, Lucknow to know about this allergy in detail. He said that people developing this type of allergy can have breathing problems, skin rashes and even eczema. He also said that intolerance to these foods or vegetables can cause a range of symptoms that might include digestive problems and related issues.  


Nightshades: What does it Contain? 

Nightshades is basically a family of flowering plants that have numerous species. These nightshade plants can be fatal if eaten in any form. Nightshades in general are not edible and are considered poisonous for most reasons but some of them are highly nutritious. Some of these nightshade fruits and vegetables are consumed worldwide by a big population.  

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Edible nightshades include the following fruits and vegetables 

  • White potatoes 
  • Tomatoes 
  • Eggplant 
  • Chillis 
  • Goji berries 
  • Garden huckleberries 
  • Bell peppers 

Effects of Nightshade Allergy 

These vegetables contain a variety of chemicals which are known to be alkaloids. Toxic chemicals such as these can contain molds and pests. These plant compounds are usually found in nightshades that have the following properties- 

  1. Nicotine 
  2. Capsaicin 
  3. Solanine 


Allergy to alkaloids is quite rare but it can actually affect you sometimes on a huge scale. Most of the people with this allergy have only tiny amounts of chemicals present in their body. Thus, the effect of nightshade allergy is not worse. However, if the person is contacted with plant stem, leaves or unripe fruits, then this allergy could go worse and have terrible symptoms. You can experience solanine toxicity from eating green potatoes.  

Symptoms of Nightshade allergy 

There are a number of symptoms that can be affected because of having a nightshade allergy. People who are allergic to these alkaloids can experience more than one symptom at a time which can be quite disturbing and discomforting. Here are some symptoms that you should be aware of- 

  • Vomiting 
  • Itchiness 
  • Hives and skin rashes 
  • Excessive production of mucus 
  • Achy muscles and joints 
  • Inflammation 

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Nightshade Intolerance Symptoms 

Food tolerance is less severe but it can cause digestive disorder and general problems very easily. Here are some intolerance symptoms that you should know.  

  • Bloating and gas 
  • Heartburn 
  • Diarrhea 

How to Treat Nightshade Allergy? 

There is no particular way to treat the allergy, doctors give an anti-allergic and some medications that can bring down your symptoms. Medications help to control the allergy and prevent it from causing adversities. Avoid eating nightshade vegetables for at least 4 weeks. Keep a record of your diet and allergy from well before. You can get yourself tested for different allergies and thus know what nightshade is affecting you.

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