Nightshade Allergy

tomatoes of different colours and shapes lined up in a row

If you’ve never heard of nightshades, you shouldn’t worry – you’re not alone. The term is used to describe Solanaceae, a plant family, which includes tomatoes, potatoes, peppers, eggplant and tobacco. Nightshade allergy can contribute to pain and inflammation in some people. So, why do nightshades cause inflammation?

 

Why do nightshades cause inflammation?man with hand on back from inflammation

While most people don’t have a problem consuming nightshades, they can spark problems for people with nightshade allergy. This is because, in addition to fantastic levels of antioxidants, plants in the nightshade family can be quite high in chemicals called alkaloids, which are linked to inflammation and stress. The alkaloid solanine, in particular, has been shown to inhibit an important enzyme in nerve cells called cholinesterase, which may result in stiffness and joint pain[1].

 

The most commonly consumed nightshades are…

a bunch of eggplants which are part of the nightshade family and can cause nightshade allergy

While the vast majority of nightshades (like belladonna) are highly toxic, edible varieties include:

  • tomatoes
  • potatoes
  • capsicums/peppers(including cayenne, bell, hot and pimento, paprika and tabasco sauce)
  • eggplant
  • tobacco
  • goji berries
  • withania/ashwaganda (medicinal herbs)

When do nightshades become a problem?

woman with nightshade allergy holding ankle due to inflammation in joints

Symptoms of nightshade allergy can include:

  • skin rashes, including welts and hives
  • nausea, diarrhoea and other digestive issues
  • dizziness, headaches and fatigue
  • arthritis or stiff and aching muscles.

However, the amount that people with sensitivities can consume before experiencing symptoms varies. Some people, especially those with arthritis, irritable bowel syndrome (IBS) and headaches, find that their symptoms reduce if they limit or avoid nightshades completely. Others can learn their threshold amount or may benefit from limiting the solanine build up in the foods they consume. For instance, solanine levels can be reduced in potatoes if they’re:

  • stored in a cool, dark place – light speeds up solanine production
  • discarded within three weeks – pay particular attention to potatoes that have sprouted or have greenish skin, which can indicate higher levels of solanine
  • cooked before they’re consumed – which can reduce alkaloid content

Natural Nightshade Allergy Treatment

man jumping over rocks freely after natural nightshade allergy treatment

Along with diet and lifestyle changes, like tumeric supplements, our natural allergy treatment may help to address underlying chronic inflammation.

At Health & Wellness Australia & Auckland (HWA), we use a technique called muscle testing (or kinesiology) to help identify people’s sensitivities to nightshades. Following testing, you can work with your practitioner to address these sensitivities using a natural allergy treatment called Positive Association Technique (PAT).

PAT is a non-invasive, natural allergy treatment which:

Please note this blog contains general information only. Always consult your health care professional before making changes to your diet or lifestyle.

 


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