Systemic Nickel Allergy Syndrome

Systemic nickel allergy syndrome (SNAS) is characterized by contact dermatitis associated with systemic symptoms after the ingestion of foods containing nickel. –World Allergy Organization Journal

Wait; what? There is another type of nickel allergy. Systemic nickel allergy syndrome is usually self-diagnosed unless you are in Italy; most doctors think a nickel allergy is just a rash.
But before that, let us peruse where nickel can be found, and if you have already read my other blog post, you can skip this.
When Food Becomes Your Enemy (Nickel Allergy Diet)
7 Ways Nickel Can Be Found In Soil
8 Ways Your Water is Contaminated with Nickel
7 Ways You're Inhaling Nickel
Here are some of the symptoms that are associated with systemic nickel allergy syndrome:
  • contact dermatitis
  • pompholyx
  • hand dermatitis dyshidrosis
  • urticaria – hives
  • headache
  • asthenia – abnormal physical weakness or lack of energy.
  • itching
  • gastrointestinal disorders related to histopathological alterations of the gastrointestinal mucosa, borderline with celiac disease

– Medscape

  • Fibromyalgia
  • Respiratory Symptoms
In rare cases, a nickel allergy can also lead to respiratory problems, including if you are inhaling nickel like factory smoke, dust, and smoke (i.e., cigarette smoke or any other smoking product)
  • A Runny Nose
  • Nasal Inflammation
  • Asthma
  • Sneezing
  • Angioedema – swelling of the lower layer of skin under the skin or mucous membrane
  • gastrointestinal symptoms (recurrent aphthous (canker sore), abdominal bloating and pain, diarrhea and/or constipation, nausea and or vomiting, with endoscopic findings of chronic gastroduodenitis).
  • Chronic fatigue
  • Postprandial dyspnea
  • Cystitis – Inflammation of the bladder
  • Vulvovaginitis – inflammation or infection of the vulva and vagina
  • acne
  • iron-deficiency anemia

L. Ricciadi, A. Arena, et al.

  • Gastrointestinal (meteorism, intestinal colic (cramp-like pain)

– Antonio Carroccio, PhD


Patients with contact dermatitis to nickel, gastrointestinal symptoms, and urticaria must be investigated about the ingestion of foods containing nickel. – World Allergy Organization Journal

But till next time
Try to track your body. If you need a little help, you can download my free allergy planner.
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Written by Barbara Njuguna

Neurotically Nickely Challenged😫, food lover 🍱, social explorer🧘🏾‍♀️, & trying to navigate this adult life as nickel free as possible😓


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Diary of a Mad Airborne Allergic Woman