10 Most Uncommon Food Allergies

October 18, 2023
uncommon food allergies

Food allergies have gained widespread recognition in recent years, with well-known allergens like peanuts and dairy taking center stage in the public’s awareness. 

However, it’s essential to shed light on a less-discussed aspect of food allergies – uncommon food allergies. While peanuts, tree nuts, eggs, and milk allergies often dominate the conversation, many lesser-known allergies can be just as severe and life-altering.

In this article, we’ll explore what uncommon food allergies are and why they deserve our attention.

The Prevalence of Rare Food Allergies

Uncommon food allergies encompass sensitivities to various foods, such as fruits, seeds, mustard, and more. These allergies, though less common than their mainstream counterparts, affect a notable segment of individuals worldwide. 

The prevalence of uncommon food allergies varies by region and population, making it difficult to provide exact statistics. However, it’s estimated that they collectively affect millions of people globally.

For those living with uncommon food allergies, awareness, education, and proper management are crucial. Understanding the potential risks, cross-contamination, and hidden sources of allergens in foods are key aspects of staying safe. Moreover, healthcare professionals and allergists play a critical role in diagnosis, guidance, and the development of personalized allergy action plans for affected individuals.


uncommon kiwi food allergy

Kiwi allergy, also known as kiwifruit allergy, is an allergic reaction triggered by proteins found in kiwi fruit. While kiwi is a delicious and nutritious fruit, some individuals may develop allergic reactions to it. The severity of kiwi allergies can vary from mild to severe, and in some cases, it can even lead to anaphylaxis, which is a life-threatening allergic reaction.

Kiwi allergies can also be associated with cross-reactivity with other foods or allergens. For example, individuals allergic to kiwi may also have allergies to other fruits or substances with similar proteins, such as birch pollen or latex. This cross-reactivity can lead to oral allergy syndrome when consuming certain raw fruits and vegetables.

Sesame Seeds

sesame food allergy

Sesame seed allergy is an allergic reaction triggered by proteins found in sesame seeds. Sesame seeds are commonly used as a seasoning in various cuisines, and sesame products, such as tahini (sesame paste) and sesame oil, are also prevalent in many dishes. 

Sesame seed allergy can be a significant concern for individuals who are allergic, and it’s considered one of the more common rare food allergies. The symptoms of sesame seed allergy may cause a range of symptoms, from mild skin reactions to severe anaphylaxis.


mustard food allergy

Mustard allergy is an uncommon but noteworthy food allergy triggered by proteins found in mustard seeds and various products containing mustard. While it may not be as prevalent as allergies to well-known allergens like peanuts or tree nuts, mustard allergy can pose significant health risks to those who are allergic. 

Mustard can be present in various forms, including as a spice, condiment, or ingredient in sauces and dressings. Hidden sources of mustard in processed foods, flavorings, or condiments can pose a risk for those with mustard allergies.

Mustard allergy can lead to a range of symptoms, from mild skin reactions (redness, itching, or general skin discomfort) to severe anaphylaxis.

Chia Seeds

chia seeds food allergy

Chia seed allergy is an adverse immune response induced by proteins contained in chia seeds. Chia seeds have garnered attention for their nutritional advantages, boasting high levels of omega-3 fatty acids, fiber, and antioxidants. Despite being recognized as a superfood and generally well-received by the majority, there are instances where certain individuals may experience allergic reactions to chia seeds.

Black Pepper

black pepper food allergy

Black pepper is a widely used spice known for its pungent flavor and culinary versatility. While black pepper is a staple in many cuisines and generally considered safe for consumption, some individuals may develop allergic responses to it.

Severe allergic reactions to black pepper are rare, but they can occur in highly sensitive individuals. These reactions may include symptoms such as difficulty breathing or swelling, which require immediate medical attention.


garlic allergy

Did you know that garlic, celebrated for its robust flavor and potential health benefits, can be the source of an uncommon food allergy? 

Garlic allergy is a distinct phenomenon where certain individuals develop allergic responses to this widely used culinary ingredient.

Allergic reactions to garlic can manifest in various ways, and the symptoms may include skin reactions (hives, redness, itching), respiratory symptoms (sneezing, a runny or congested nose, coughing), gastrointestinal discomfort (stomach cramps, nausea, or diarrhea), and oral irritation (a burning sensation or itching in the mouth or throat).


bananas allergy

Bananas are a popular and nutritious fruit enjoyed by many. However, it’s important to note that some individuals may have a food allergy to bananas.

A banana food allergy occurs when the immune system mistakenly identifies proteins in bananas as harmful substances. This can trigger an allergic reaction, which can range from mild symptoms such as itching or hives, to more severe reactions like difficulty breathing or anaphylaxis.

If you suspect you have a banana allergy, it’s best to consult with a healthcare professional for proper diagnosis and guidance on managing your condition. They may recommend allergen testing or provide advice on avoiding cross-contamination in your diet.


allergy on vanilla

Vanilla allergy is a condition where individuals experience adverse reactions after consuming or coming into contact with vanilla or products containing vanilla. While vanilla is commonly used as a flavoring agent in various foods and beverages, some people may develop an allergic response to it.

Symptoms of a vanilla food allergy can range from mild to severe and may include itching, hives, swelling, difficulty breathing, nausea, vomiting, or even anaphylaxis in extreme cases. It is important for individuals with known allergies to vanilla to read ingredient labels carefully and avoid consuming products that contain this ingredient.

While there is no cure for food allergies yet, individuals with vanilla allergies can successfully manage their condition by practicing strict avoidance of trigger foods and carrying emergency medication such as epinephrine auto-injectors in case of accidental exposure.


buckwheat allergy

Buckwheat food allergy is a specific type of food allergy that occurs when an individual has an adverse reaction to consuming buckwheat. Buckwheat is a gluten-free grain-like seed that is commonly used in various cuisines and food products. Surprisingly, although it is an important ingredient in healthy foods, it can still be dangerous for certain people.

People with buckwheat food allergy may experience symptoms such as hives, itching, swelling, difficulty breathing, abdominal pain, nausea, or vomiting after consuming buckwheat or products containing it. In severe cases, it can even lead to anaphylaxis, a life-threatening allergic reaction.

Overall, being aware of the symptoms and taking necessary precautions can help individuals with buckwheat food allergies lead safe and healthy lives.

Stone Fruits

stone fruits allergy

Stone fruits are a delicious and nutritious addition to our diets. However, for some individuals, consuming these fruits can lead to an allergic reaction. 

A stone fruit allergy is a specific type of food allergy that occurs when the immune system reacts negatively to proteins found in stone fruits such as peaches, plums, cherries, and apricots.

Common allergy symptoms include itching or swelling of the lips, tongue, or throat; hives or rash; abdominal pain or cramps; nausea or vomiting; and in severe cases, difficulty breathing or anaphylaxis.

Symptoms of Uncommon Food Allergies

symptoms of uncommon food allergies

Uncommon food allergies, like their more common counterparts, can elicit a wide range of symptoms. It’s crucial to recognize that these symptoms can vary in intensity from mild to severe, and they may differ from person to person. Here’s an overview of the symptoms associated with uncommon food allergies:

Skin Reactions

  • Hives (urticaria). Hives are raised, itchy welts that can appear on the skin. They are a common allergic reaction and can occur within minutes of consuming the allergen.
  • Skin rash. Allergic reactions may lead to redness, itching, or a rash on various parts of the body.
  • Swelling (angioedema). Swelling, especially of the face, lips, tongue, or throat, can occur rapidly and is a serious symptom that requires immediate attention.

Gastrointestinal Symptoms

  • Nausea and vomiting. Some individuals may experience nausea and vomiting as a result of an allergic reaction.
  • Diarrhea or abdominal pain. Allergic reactions can also manifest as digestive problems, including diarrhea or abdominal cramps.

Oral Symptoms

  • Oral allergy syndrome. In certain uncommon food allergies, particularly those involving cross-reactivity with pollen allergens (like birch or ragweed pollen), individuals may experience oral allergy syndrome. This typically involves itching, tingling, or swelling of the lips, tongue, or throat after consuming certain raw fruits or vegetables.

Respiratory Symptoms

  • Sneezing and runny nose. Allergic reactions may trigger sneezing and a runny or congested nose.
  • Coughing and wheezing. In more severe cases, individuals may develop coughing and wheezing, which can be indicative of compromised respiratory function.

Cardiovascular Symptoms

  • Low blood pressure (hypotension). Severe allergic reactions can lead to a drop in blood pressure, which, if left untreated, can result in shock and unconsciousness.


The most severe and potentially life-threatening reaction to uncommon food allergies is anaphylaxis. Anaphylaxis is a rapid and systemic allergic response that can affect multiple organ systems simultaneously.

Symptoms of anaphylaxis can include a combination of the following:

  • Severe swelling, especially of the throat, making it difficult to breathe or swallow.
  • Difficulty breathing, shortness of breath, or wheezing.
  • Rapid or weak pulse.
  • Loss of consciousness or confusion.
  • Severe drop in blood pressure.
  • Nausea, vomiting, or diarrhea.
  • Blue or pale skin, particularly around the lips or extremities.
  • Anaphylaxis is a medical emergency that requires immediate administration of epinephrine (adrenaline) and professional medical care. Prompt treatment is essential to prevent a potentially fatal outcome.


Uncommon food allergies, although less frequently discussed, are a very real and impactful concern for many people. While they may not affect the same broad populations as more common allergies like peanuts or dairy, those living with uncommon food allergies face unique challenges that require vigilance, awareness, and proactive management.

The journey of managing uncommon food allergies begins with education. Individuals and their families must understand the specific allergen triggers, recognize the symptoms of allergic reactions, and be aware of hidden sources and cross-contamination risks. This knowledge forms the foundation for making informed choices and safeguarding against accidental exposure.

And to make dining out even safer and more convenient not only for you, but also for your companions, families and friends, take a look at what useful mobile tools are available. Among these, the UMA mobile application from IT Creative Labs stands out.

The UMA is designed to empower individuals with food allergies and intolerances, offering a seamless way to dining out with confidence. Learn how it works here and get the UMA app now on Android and iOS devices.

In summary, living with uncommon food allergies is a journey that requires knowledge, communication, and a proactive approach to ensure safety and well-being. With the right information and support, individuals and their loved ones can confidently navigate the challenges and lead fulfilling lives, even in the face of less common but significant food allergies.

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