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Food Allergies


Food allergies are a common condition in which the immune system overreacts to certain proteins in foods, triggering an allergic reaction. Food allergies can have wide range of symptoms from normal to severe such as;

  • swelling
  • hives
  • vomiting
  • diarrhea
  • difficulty breathing
  • Anaphylaxis (Anaphylaxis is a life-threatening reaction that requires immediate medical treatment with epinephrine)

Food allergies are diagnosed through

  • a combination of medical history
  • skin or blood tests
  • sometimes oral food challenges

The only treatment is strict avoidance of the trigger food. Medications like antihistamines can help manage symptoms, but there is no cure.

Risk factors for developing food allergies include

  • family history
  • having other allergic conditions
  • early life experiences like cesarean delivery

Here, we discuss some of the common food allergies;

1: Nightshade allergy

Nightshade allergy is a rare condition where the body’s immune system overreacts to certain compounds called alkaloids found in nightshade plants. Nightshades are a family of plants that include common foods like tomatoes, potatoes, eggplants, and peppers.

Symptoms of a nightshade allergy can include:

  • Skin rashes and hives
  • Itchiness
  • Nausea and vomiting
  • Wheezing or breathing difficulties
  • Muscle and joint aches
  • Excessive mucus production

In severe cases, nightshade allergy can trigger anaphylaxis, a potentially life-threatening reaction that requires immediate medical treatment.

Nightshade intolerance, which is more common, is caused by the body’s inability to properly digest alkaloids. This can result in many digestive problems like gas, diarrhea and bloating.

Nightshade allergies are diagnosed through blood tests or skin prick tests to detect IgE antibodies. Treatment involves avoiding nightshade foods and medications like antihistamines and decongestants to manage symptoms.

Genetic factors, particularly mutations in the BCHE gene, may increase the risk of developing a nightshade allergy. Keeping a food diary can help identify problematic nightshade foods.

2: Pine Apple allergy

A pineapple allergy is an allergic reaction triggered by eating pineapple or drinking pineapple juice. Symptoms can range from mild, such as itchy skin or a tingling sensation in the mouth, to severe, including difficulty breathing, swelling of the face and throat, and anaphylaxis.

The most common symptoms of a pineapple allergy include:

  • Itching and hives on the skin
  • Swelling of the face, tongue, throat, and lips
  • Many problems related to digestion including vomiting, diarrhea and stomach pain
  • Difficulty breathing
  • Flushing of the face
  • Sinus congestion

Anaphylaxis is the most serious complication and requires immediate medical treatment. Symptoms include wheezing, rapid heartbeat, throat swelling, and loss of consciousness.

People with a pineapple allergy should avoid eating fresh or canned pineapple and drinking pineapple juice. Pineapple can also hide in other foods like fruit salads, salsas, jams, sodas, and tropical drinks.

Pineapple allergies are less common than allergies to foods like nuts, wheat, milk, and eggs. They are caused by an immune system reaction to proteins in pineapple, particularly bromelain. Individuals with latex allergies may also react to pineapple due to similar proteins.

To diagnose a pineapple allergy, doctors take a patient history, perform skin or blood tests, and rule out other potential causes. Treatment involves avoiding pineapple, managing symptoms with antihistamines, and carrying epinephrine auto-injectors for severe reactions.

3: Tomato allergy

A tomato allergy is a type 1 hypersensitivity reaction to tomatoes, characterized by the release of histamines in response to exposure to the allergen. This reaction can manifest in various ways, including skin symptoms such as

  • Rashes
  • Eczema or hives
  • abdominal cramps
  • nausea
  • diarrhea
  • coughing
  • sneezing
  • wheezing
  • in severe cases, anaphylaxis

Tomato allergies are known to be associated with cross-reactivity to other nightshades, including potatoes, tobacco, and eggplant, as well as latex, which is known as latex-fruit syndrome. The symptoms of a tomato allergy typically occur shortly after consuming the allergen and can be confirmed through skin prick tests or blood tests that detect immunoglobulin E (IgE).

While avoidance is the best option for managing a tomato allergy, antihistamines and topical steroidal ointments can be used to treat the symptoms. The allergy can also be associated with other conditions, such as atopic dermatitis, where tomatoes are considered irritants.

Tomato allergies have been reported in various populations, with prevalence ranging from 1.5% to 20% in individuals with foodborne allergies. The allergenic potential of tomatoes is influenced by the cultivar and development stages rather than cultivation conditions. Clinical manifestations of tomato allergy are often observed in association with other airborne or food allergies, and severe allergic symptoms are rarely reported.

In some cases, what appears to be a tomato allergy may actually be a pseudo-allergy, which is a reaction that mimics an allergy but is not caused by an immune response. This can be due to the direct contact of chemicals and acidity in tomato products on sensitive skin, or the presence of naturally occurring histamines or salicylates in tomatoes that act directly on mast cells to cause a reaction.

Overall, a tomato allergy is a rare but potentially serious condition that requires careful management and avoidance of tomato products to prevent allergic reactions.

4: Mushroom allergy

Mushroom allergy is a hypersensitivity reaction caused by the immune system’s overreaction to proteins or molds present in mushrooms. Mushroom allergy can have variety of symptoms including;

  • Skin rash
  • Hives
  • Itching
  • swelling of the lips, tongue or throat
  • difficulty breathing
  • stomach cramps
  • diarrhea
  • nausea
  • headache
  • dizziness

The primary cause of mushroom allergy is exposure to mushroom spores through consumption, inhalation or skin contact. People with mushroom allergy may also react to other fungi, molds, aged cheese, yeast or mildew.

Diagnosis involves observing symptoms after consuming mushrooms and performing a food allergy skin test. Treatment includes avoiding mushrooms, taking antihistamines to relieve symptoms, using corticosteroids to reduce inflammation, and in severe cases, administering epinephrine.

Mushroom allergens identified so far include proteins like enolase, manganese-dependent superoxide dismutase, and NADP-dependent mannitol dehydrogenase. However, more research is needed to fully understand the prevalence and causes of mushroom allergy.

5: Strawberry allergy

Strawberry allergy is an allergic reaction that occurs when the immune system identifies the proteins in strawberries as harmful substances and produces an immune response. Fra a1 is the primary allergen found in strawberries but there are many other proteins that cause allergies. The primary allergen in strawberries is called Fra a1, but other proteins may also contribute to allergic reactions.

Strawberry allergy symptoms can range from mild to severe, and may include

  • skin rash
  • hives
  • itching and tingling of the mouth
  • throat tightness
  • wheezing
  • difficulty breathing
  • stomach distress
  • nausea
  • vomiting
  • In rare cases, strawberries can cause a life-threatening allergic reaction known as anaphylaxis.

Strawberry allergy is often associated with oral allergy syndrome (OAS), where individuals sensitive to certain pollens experience an allergic reaction to related fruits and vegetables. People with strawberry allergy may also be allergic to other fruits in the Rosaceae family, such as apples, cherries, raspberries, and peaches.

Diagnosis of strawberry allergy typically involves skin prick tests or blood tests to detect the presence of strawberry-specific antibodies. Treatment involves avoiding strawberries and related fruits, and using antihistamines or epinephrine for severe reactions. In some cases, the allergy may be outgrown over time.

6: Cashew allergy

Cashew allergy is a serious condition that can lead to severe and life-threatening reactions. Symptoms of a cashew allergy include

  • abdominal pain
  • vomiting
  • diarrhea
  • runny nose
  • shortness of breath
  • difficulty swallowing
  • anaphylaxis, which is a severe allergic reaction affecting the entire body.

Anaphylaxis can cause swelling of the tongue and lips, difficulty breathing, and a sudden drop in blood pressure, potentially leading to weakness and fainting. Cross-reactivity with other tree nuts like almonds and walnuts, as well as peanuts, is common, increasing the risk of developing a cashew allergy. If you suspect a cashew allergy, consult an allergist for accurate diagnosis through tests like skin prick tests and blood tests.

Treatment involves avoiding cashews and using antihistamines and epinephrine for severe reactions. Substitutes for cashews in recipes include seeds like sunflower and pumpkin, beans like chickpeas or soybeans, and crushed pretzels. It’s crucial to be vigilant about food labels and inform restaurants about your allergy to prevent accidental exposure.

7: Chicken allergy

A chicken allergy is an adverse immune response to consuming chicken or its byproducts. While not very common, it can cause uncomfortable symptoms in some people.

  • Symptoms of a chicken allergy can range from mild to severe and may include:
  • Itchy, swollen, or watery eyes
  • Runny, itchy nose
  • Sneezing
  • Difficulty breathing
  • Scratchy, sore throat
  • Coughing or wheezing
  • Irritated, red skin or eczema-like rash
  • Itchy skin
  • Hives
  • Nausea, vomiting, stomach cramps
  • Diarrhea

In rare cases, a chicken allergy can trigger anaphylaxis, a severe whole-body reaction that requires immediate medical treatment.

People with chicken allergy should avoid all contact with raw or cooked chicken and may also need to avoid eggs, especially raw or undercooked. Antihistamines can help manage mild symptoms, while severe reactions may require epinephrine injection.

Chicken allergies are more common in adolescents and young adults, though hypersensitivity can start at a younger age. They are often associated with allergies to turkey, fish, and shrimp. The allergens responsible are primarily low molecular weight proteins in chicken meat.

8: Carrot allergy

A carrot allergy is an adverse immune response to specific proteins found in carrots. It is a relatively uncommon allergy, despite carrots being one of the top ten most consumed vegetables worldwide.

Symptoms of a carrot allergy can range from mild to severe and typically occur shortly after consuming raw carrots. Common symptoms include:

  • Itching in lips, ears, mouth, tongue or throat
  • Swelling in the mouth area
  • Scratchy feeling in the throat
  • Hives
  • Breathing problems
  • Swollen skin
  • Cough
  • Sore throat
  • Sneezing
  • Runny nose
  • Tightness in the chest

In rare cases, a carrot allergy can trigger a whole-body reaction called anaphylaxis, which is potentially fatal and requires immediate medical attention. Symptoms of anaphylaxis include swelling of the mouth, lips and throat, wheezing, gastrointestinal problems, shortness of breath, dizziness, and low blood pressure.

Carrot allergies are often associated with Oral Allergy Syndrome (OAS), which occurs when the immune system overreacts to raw fruits and vegetables due to cross-reactivity with pollen allergens. People with pollen allergies, especially to birch pollen, are more susceptible to carrot allergies.

To diagnose a carrot allergy, healthcare providers may perform skin prick tests or blood tests to measure IgE antibodies. Avoiding carrots and products containing carrots is the best way to prevent allergic reactions. If you suspect a carrot allergy, consult with an allergist for proper diagnosis and management.

9: Pumpkin allergy

Pumpkin allergy is a rare condition that can cause allergic reactions in susceptible individuals. The most common symptoms include:

  • Skin reactions like itchy skin, hives, redness and swelling
  • Gastrointestinal symptoms such as nausea, vomiting, abdominal pain and diarrhea
  • Respiratory symptoms including sneezing, runny nose, coughing, shortness of breath and wheezing

In rare cases, severe reactions like anaphylaxis with sudden drop in blood pressure, difficulty breathing and throat swelling

Pumpkin allergy can be triggered by eating pumpkin or pumpkin-containing foods, as well as by touching raw pumpkin flesh while carving or handling pumpkins. Pumpkin seeds can also cause allergic reactions in some people.

Diagnosis involves a detailed medical history, allergy skin or blood tests to measure pumpkin-specific IgE levels, and in some cases an oral food challenge. Management focuses on strict avoidance of pumpkin and pumpkin products, carrying epinephrine auto-injectors for those at risk of anaphylaxis, and using antihistamines or corticosteroids for mild symptoms.

While pumpkin allergy is uncommon, it is important for people with suspected pumpkin allergy to get properly evaluated by an allergist to confirm the diagnosis and receive appropriate treatment recommendations. With proper precautions, most people with pumpkin allergy can safely enjoy the fall season.

10: Peach allergy

Peach allergy is a common food allergy, particularly in regions where peach trees are widely cultivated, such as Georgia, known as the “Peach State”. Pollen Food Allergy Syndrome (PFAS), a cross-reactive allergy in which the body’s immune system misidentifies certain fruit proteins as tree pollen proteins, is frequently linked to the allergy. The major allergen from peach is a 9 kDa size protein, Pru p 3 (pathogen-related protein 14), which cross-reacts with birch tree pollen.

Symptoms of a peach allergy can range from mild to severe and often appear immediately after consuming the fruit. The most common symptoms include oral allergy syndrome (OAS), characterized by itching or tingling in the mouth, lips, throat, and ears shortly after eating raw peach. Other symptoms may include

  • hives
  • eczema
  • nasal congestion
  • difficulty breathing
  • stomach pain
  • nausea
  • vomiting
  • diarrhea
  • in extreme situations, anaphylaxis, a potentially fatal allergic reaction that needs to be treated right away.

Peach allergy is fairly common, especially in people who are also allergic to other plant-related substances. Peach allergies may become more common during the peach harvest season. It is important to remember that peaches can cause allergies in anyone, even if they have been eating them for years without experiencing any negative side effects. Peach allergies can strike at any time and are not limited to any particular age or demographic.

The diagnosis of peach allergy involves three approaches: a skin test with commercial extract of peach, a fresh/frozen peach skin test, and a blood test for peach-specific IgE. The most helpful test is the use of fresh peach, as the amount of peach-specific IgE antibody in blood can be too low to detect, and processing may affect the skin test result of commercial extracts.

Treatment for peach allergy typically involves avoiding consumption of peaches and related fruits that may cause cross-reactivity. For those who experience severe reactions, carrying an EpiPen or other emergency medication may be necessary. In some cases, oral immunotherapy may be considered as a treatment option. It is crucial for individuals with a peach allergy to be aware of potential reactions to related foods and to seek medical attention if symptoms occur.

11: Kiwi allergy

The immune system’s reaction to the proteins in kiwi fruit is known as kiwi allergy, and it can cause a variety of symptoms that vary from person to person. The most common symptoms include;

  • skin rash and itching
  • hives
  • oral allergy syndrome symptoms like itching or tingling in the mouth
  • nausea and vomiting
  • diarrhea
  • abdominal pain
  • respiratory issues like sneezing fits, nasal congestion, and difficulty breathing.

Kiwi allergy is frequently associated with other allergies, including latex or birch pollen, and it could be a component of the oral allergy syndrome. If the fruit is heated to a high degree, the proteins that cause kiwi allergies may be broken down, allowing some people who are allergic to the fruit to still eat it.
Kids are more likely than adults to experience severe symptoms of a kiwi food allergy. Although a food allergy can persist forever, some people outgrow it. Most people who have kiwi allergy also have allergies to other fruits, vegetables, and pollen, which ranges from 9% to 60%.

The most severe reaction is anaphylaxis, which is so severe and develops quickly that it needs to be treated medically right away. Anaphylaxis is characterised by severe dyspnea due to constricted airways, a sharp decrease in blood pressure that causes lightheadedness or fainting, and a fast heartbeat. If adrenaline is not administered quickly, this illness may be fatal.
A kiwi allergy can be diagnosed by identifying symptoms that appear after eating the fruit and by undergoing certain tests, such as skin prick tests, to confirm the diagnosis. All kiwi fruit varieties should be avoided by those who have a kiwi allergy until they consult an allergy specialist about what foods to eat and avoid.

12: Rice allergy

Rice allergy is an immune reaction to proteins found in rice. The major allergens responsible for rice allergy symptoms are 9-, 14-, and 31-kDa protein bands. These allergens are present in various forms of rice such as flour, oil, and milk.

Symptoms of rice allergy include:

  • Urticaria (hives) or rice allergy rash
  • Itchy skin
  • Gastrointestinal problems
  • Asthma and other respiratory issues
  • Anaphylaxis, in rare cases

Rice allergy is uncommon but can develop in anyone. It may be more frequently encountered in communities where rice is a staple food. Ingestion of rice or inhalation of rice dust/flour may induce IgE-mediated food allergy symptoms, such as oral allergy syndrome or even anaphylaxis.

To diagnose a rice allergy, an allergist may perform a food challenge or elimination diet. Individuals with rice allergy should avoid consumption of rice and related foods like barley, oats, wheat, rye, soybean, corn, grass pollen and triticale. Immediate medical care should be sought if rice is accidentally consumed.

The allergenicity of rice may be reduced by cooking, as many proteins break down with heat. However, certain allergens are resistant to both heat and proteolysis. Occupational exposure to rice can also cause allergic reactions like contact dermatitis and asthma in rice workers and bakers.

13: Oat allergy

A relatively uncommon but potentially dangerous food allergy, oat allergy can cause mild to severe symptoms. The allergy is caused by an immune system reaction to proteins found in oats, particularly avenin and globulin.

Symptoms of oat allergy may include:

  • Skin rash, hives, or itchy skin
  • Swollen lips, tongue, or throat
  • Nausea, vomiting, or diarrhea
  • Runny or stuffy nose, sneezing, coughing
  • Shortness of breath or wheezing
  • Anaphylaxis (severe, life-threatening reaction)

Oat allergy can develop in both children and adults, and is more common in those with a family history of allergies. It is important to distinguish oat allergy from oat sensitivity, which is less severe and not life-threatening.

Diagnosis involves medical history, physical exam, skin prick tests, blood tests, and sometimes an oral food challenge. Treatment consists of avoiding oats and products containing oats, carrying an epinephrine auto-injector, and using antihistamines or other medications for mild symptoms.

Oat allergy can also cause skin reactions when oat-containing products are used topically. Strict avoidance of oats is crucial, as they are found in many foods like cereals, breads, cookies, and even some beers.

14: Celery allergy

Celery allergy is a condition where the immune system reacts adversely to consuming celery or products containing celery derivatives. The most common symptoms include

  • Itching
  • redness or swelling of the lips, tongue, mouth, throat, and ears
  • stomach pain
  • nausea
  • vomiting
  • skin rashes
  • hives
  • shortness of breath
  • in severe cases, anaphylaxis

Celery allergy is relatively uncommon, but its prevalence varies widely around the world. In parts of Europe, the prevalence has been reported to range between 2.8% and 11.1% based on sensitization, and 5.5% for self-reported celery allergy. In central Europe, celery allergy is one of the most frequent triggers for food-related allergies, with up to 42% of food-allergic adults reacting to celery.

Celery allergy is different from celery intolerance, which does not involve the immune system and is less likely to cause severe reactions. People with celery allergy may also experience cross-reactivity with other foods like cherries, peaches, hazelnuts, peanuts, and carrots.

Avoiding celery and celery-containing products is the best way to manage a celery allergy. Those with severe reactions may require an epinephrine auto-injector. Celery allergy can be diagnosed through skin prick tests or blood tests.

15: Allium allergy

An allium allergy is a rare immune reaction to certain proteins found in allium plants, such as garlic and onions. Symptoms of an allium allergy can vary from mild to severe and may include

  • Hives
  • Swelling
  • difficulty breathing
  • in extreme cases, anaphylaxis

It is crucial to differentiate between an allium intolerance and an allium allergy, as the two conditions have distinct causes and symptoms. While an allium intolerance is related to the inability to digest certain members of the allium family, leading to symptoms like abdominal discomfort, bloating, and diarrhea, an allium allergy involves an immune response to specific proteins in allium plants. If you suspect an allium allergy, consulting an allergist or immunologist for skin tests or blood tests is recommended to confirm the diagnosis and determine the appropriate treatment.

16: Blueberry allergy

An unfavourable immune reaction to the proteins in blueberries is known as a blueberry allergy. A person suffering from this kind of food allergy may experience mild to severe symptoms as a result of their immune system misinterpreting certain proteins as dangerous when they eat blueberries.
The following are the most typical signs of blueberry allergies:

  • Respiratory symptoms such as runny or stuffy nose, coughing, sneezing, wheezing or difficulty breathing
  • Lips, tongue, or mouth edoema or itching
  • Skin reactions, including hives, eczema, and facial or limb swelling and redness
  • Cardiovascular symptoms including a drop in blood pressure, lightheadedness or fainting

Blueberries contain salicylates, natural-occurring chemicals in plants that can cause allergic reactions in some people. Salicylates are also found in many other foods, medications and beauty products, so those allergic to blueberries may need to avoid products containing salicylates. Blueberry allergy is relatively rare compared to other food allergies. If you suspect you may have a blueberry allergy, it’s important to see an allergist for proper testing and diagnosis. Avoiding contact with blueberries is necessary for those diagnosed with a blueberry allergy.

17: Ginger allergy

Ginger allergy is a rare condition where the immune system reacts abnormally to ginger, a spice commonly used in cooking. Symptoms can range from mild skin reactions like hives or rashes to more severe reactions like difficulty breathing and anaphylaxis.

Common symptoms of a ginger allergy include:

  • Skin reactions: hives, rash, itching, redness, swelling in the mouth/throat
  • Digestive issues: stomach cramps, nausea, diarrhea
  • Difficulty breathing
  • Oral irritation
  • Coughing, congestion
  • Vomiting

Ginger allergy is diagnosed through skin prick tests, blood tests measuring IgE antibodies, and sometimes oral food challenges under medical supervision. People with a history of severe allergic reactions should carry epinephrine auto-injectors.

Ginger allergy is more common in those with certain pollen allergies like birch or mugwort, due to cross-reactivity of similar proteins. Allergic reactions have also been reported from inhaling ginger dust.

While skin and blood tests are the primary diagnostic tools, a person can still have a true ginger allergy with negative test results, as the tests don’t account for all possible allergic mechanisms. Avoiding ginger is the main treatment, and antihistamines alone are not an effective preventative therapy for IgE-mediated food allergies.

18: Hazelnut allergy

A hazelnut allergy is an IgE-mediated hypersensitivity reaction induced by proteins in hazelnuts, leading to various symptoms ranging from mild to severe, including

  • abdominal pain
  • itching
  • hives
  • swelling
  • potentially life-threatening anaphylaxis

Hazelnut allergies are common and can be triggered by primary or secondary factors, with primary allergies causing more severe reactions and often requiring adrenaline autoinjectors for treatment. Symptoms of hazelnut allergy can vary from itching and hives to respiratory and gastrointestinal issues, with reactions typically occurring within minutes of ingestion. Diagnosis involves skin prick tests, blood tests, and oral food challenges to confirm the allergy. Management primarily revolves around strict avoidance of hazelnuts and prompt treatment of allergic reactions if they occur.

19: Coconut allergy

Coconut allergy is a rare but significant concern, with symptoms ranging from mild to severe, including skin rash, swelling, vomiting, and even anaphylaxis. It is crucial to differentiate between coconut and tree nut allergies, as coconut is a fruit, not a nut, despite misconceptions. Allergic reactions to coconut can occur through ingestion, contact, or breastfeeding. Diagnostic cutoffs for specific immunoglobulin E (sIgE) and skin prick testing (SPT) have been suggested to predict clinically reactive coconut allergy.

Symptoms of coconut allergy can include

  • Hives
  • Itching
  • Nausea
  • Dizziness
  • Coughing
  • even anaphylaxis, which is a life-threatening emergency.

While there is no cure for coconut allergy, antihistamines can help manage symptoms. Avoiding coconut-containing foods and products is essential for individuals with coconut allergies. It is noteworthy that people with tree nut allergies may tolerate coconut well, but caution is advised, especially for those with severe nut allergies.

20: Dairy products allergy

A dairy or milk allergy is an immune system reaction to the proteins in milk, most commonly from cows. It is different from lactose intolerance, which is a digestive issue.

Symptoms of a dairy allergy can range from mild to severe and life-threatening. They typically appear within minutes to hours after ingesting milk and may include:

  • Hives, itching or rash
  • Swelling in face, tongue, lips and throat
  • Wheezing, nasal congestion or trouble breathing
  • Abdominal pain, diarrhea, nausea or vomiting
  • Anaphylaxis – a severe, whole-body allergic reaction that is a medical emergency

Dairy allergies are most common in infants and young children, with about 2-3% of children under 3 affected. Many outgrow it by age 5, but it may persist into adulthood in some cases.

To manage a dairy allergy, all milk and dairy products must be strictly avoided. This includes:

  • Butter, cheese, cream, custard, ice cream, milk, yogurt
  • Foods containing milk proteins like casein or whey
  • Baked goods, sauces, processed meats, candy, etc.

Dairy substitutes like almond, soy, rice or oat milk can be used. A dietitian can help ensure adequate nutrition without dairy.

If anaphylaxis occurs, epinephrine should be administered immediately and emergency medical care sought. With proper avoidance, most people with dairy allergies can manage their condition.

Food allergy testing kit

Food allergy testing kits are available from various providers like Amazon, YorkTest, and Everlywell. These kits allow individuals to test for food allergies in the comfort of their homes. Amazon offers the Ultimate Food Sensitivity Test Kit for Adults by SSC, which tests 900 items including gut health and digestion.

  • YorkTest provides a Premium Food Sensitivity Test measuring IgG reaction to 200 foods with results in 7 days.
  • Everlywell offers a Food Allergy Test measuring IgE reactivity to common food allergens with results accessible online in a few days.

These kits provide personalized results, easy-to-understand reports, and actionable insights to help individuals identify potential food allergies and sensitivities.


1: What is Wool allergy?

Wool allergy is a common condition that can cause uncomfortable symptoms like itching, rashes, and sneezing when exposed to wool. However, current evidence suggests that wool fiber itself is not a cutaneous allergen. The main culprit behind wool allergy is lanolin, a natural oil produced by sheep to keep their wool soft and waterproof.

2: What is Morphine allergy?

Morphine allergy is rare, but can cause severe reactions like anaphylaxis in some patients. However, many documented “morphine allergies” are actually intolerance to common side effects like nausea and constipation, rather than true IgE-mediated allergies.

3: What is Nectar?

Nectar Life Sciences is a health technology company that has launched the Nectar Allergy Center in New York City, offering a hybrid model of allergy care that combines virtual and physical services. The center treats various allergic conditions, including asthma, food allergies, and eczema, catering to both adults and children. The company has strengthened its clinical expertise by appointing new board-certified allergists and medical executives.

Nectar Life Sciences aims to revolutionize allergy care by providing comprehensive, data-driven clinical solutions to address the significant impact of allergies on millions of Americans. Their approach includes personalized treatment plans, such as Nectar Allergy Drops, which are evidence-based, safe, and customized for each patient through sublingual immunotherapy. The company’s mission is to empower and educate patients, offering accessible and effective allergy care to improve quality of life for allergy sufferers.

4: What is Nicotine allergy?

Tobacco allergy has been confirmed in scientific studies, with nicotine identified as the main allergen. Skin prick tests can diagnose nicotine allergy by applying nicotine extracts to the skin and looking for a reaction. However, less than 10% of allergic people test positive for tobacco allergy.


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