What Is a Food Allergy?

A food allergy happens when the immune system reacts to a specific food as if it were harmful. Reactions can be mild, but they can also become severe or life-threatening.

According to the CDC’s 2024 National Health Interview Survey data, almost 7% of U.S. adults and 5% of children have a diagnosed food allergy. Food allergies are common, but every patient’s symptoms, triggers, and risk level are different.

Common Food Allergy Triggers

Food allergies can be caused by many foods, but some of the most common include:

• Peanuts
• Tree nuts
• Shellfish
• Fish
• Milk
• Eggs
• Wheat
• Soy
• Sesame

Even if you have eaten a food safely in the past, it is possible to develop a new food allergy later in life.

 

Symptoms of Food Allergies

Food allergy symptoms can appear quickly after eating, sometimes within minutes. Others may be more subtle or confusing, which is why a careful allergy evaluation is important.

Possible Food Allergy Symptoms Include:

• Hives or itchy skin
• Swelling of the lips, tongue, face, or throat
• Itchy mouth or throat
• Nausea, vomiting, stomach cramps, or diarrhea
• Coughing, wheezing, or trouble breathing
• Dizziness or fainting
• A sudden feeling of severe illness
• Anaphylaxis

When Food Allergies Become an Emergency

Anaphylaxis is a serious allergic reaction that can progress quickly. The American College of Allergy, Asthma & Immunology states that epinephrine is the first-line treatment for anaphylaxis. Patients with confirmed food allergies may need an epinephrine auto-injector and a clear emergency action plan.

If you are having trouble breathing, throat tightness, severe swelling, faintness, or symptoms involving more than one body system after eating, seek emergency medical care immediately.

 

Food Allergy Testing in NYC and New Rochelle

Accurately identifying the food causing your reaction is one of the most important steps in treatment. Avoiding foods unnecessarily can make eating difficult and may limit nutrition, while missing a true allergy can increase the risk of future reactions.

At Steven Schnipper MD, PC, Dr. Schnipper begins with a detailed medical history and may recommend allergy testing based on your symptoms.

Your Food Allergy Evaluation May Include:

1. Detailed Reaction History

Dr. Schnipper will ask about what you ate, how quickly symptoms appeared, what symptoms occurred, whether medication helped, and whether similar reactions have happened before.

2. Allergy Skin Testing

Skin testing may help identify whether your immune system reacts to specific food allergens.

3. Blood Testing

Blood testing may be recommended when skin testing is not appropriate or when additional information is needed.

4. Personalized Risk Review

Test results must be interpreted carefully. A positive allergy test does not always mean a person will have a dangerous reaction when eating that food. Dr. Schnipper reviews your test results in the context of your actual symptoms and medical history.

 

Food Allergy Treatment and Management

The best food allergy treatment plan depends on your trigger, reaction severity, medical history, lifestyle, and risk of accidental exposure.

Your Personalized Food Allergy Plan May Include:

• Identifying and avoiding confirmed food allergens
• Reading ingredient labels more confidently
• Knowing when symptoms require urgent treatment
• Using antihistamines when appropriate
• Carrying epinephrine if medically indicated
• Creating an emergency action plan
• Understanding cross-contact risks
• Follow-up visits to reassess symptoms and update your plan

Dr. Schnipper works directly with patients to create individualized care plans rather than using a one-size-fits-all approach.

 

Food Allergy vs. Food Intolerance: What’s the Difference?

Many people use the terms food allergy and food intolerance interchangeably, but they are not the same.

Food Allergy

A food allergy involves the immune system and can cause hives, swelling, breathing symptoms, or anaphylaxis.

Food Intolerance

A food intolerance usually involves digestion. Symptoms may include bloating, gas, stomach pain, or diarrhea, but it does not typically involve the same immune-system risk as a true food allergy.

Because symptoms can overlap, seeing an experienced allergist can help you understand what is actually happening and what steps to take next.

 

Why Choose Steven Schnipper, MD for Food Allergy Care?

Choosing the right allergist matters, especially when food reactions are unpredictable or potentially serious.

Patients Choose Steven Schnipper MD, PC Because:

• Board-certified allergist with decades of allergy and asthma experience
• Personalized one-on-one care directly from Dr. Schnipper
• Thorough allergy evaluations based on history, symptoms, and testing
• Convenient Murray Hill NYC and New Rochelle offices
• Treatment for a full range of allergic conditions, including food allergies, asthma, hives, eczema, anaphylaxis, hay fever, pet allergies, and drug allergies
• Practical plans designed to help patients prevent and manage reactions

 

Food Allergy Specialist Near Murray Hill, NYC

The New York City office is located in Murray Hill, convenient for patients searching for:

• Food allergy specialist NYC
• Food allergy testing NYC
• Food allergist Murray Hill
• Allergist near Grand Central
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New York Office

345 E 37th St, Suite 314
New York, NY 10016
Phone: (212) 681-6200

 

Food Allergy Specialist in New Rochelle, NY

Dr. Schnipper also sees patients in New Rochelle, making expert food allergy care convenient for patients in Westchester and nearby communities.

New Rochelle Office

175 Memorial Hwy, Suite 2-10
New Rochelle, NY 10801
Phone: (914) 633-3229

 

When Should You See an Allergist for Food Allergies?

You should consider scheduling a food allergy evaluation if you have:

• Hives, swelling, or itching after eating
• Trouble breathing, coughing, or wheezing after meals
• A history of anaphylaxis
• Reactions to peanuts, tree nuts, shellfish, fish, milk, egg, wheat, soy, or sesame
• Unclear food triggers
• Been told to avoid multiple foods without a confirmed diagnosis
• Concerns about carrying or using epinephrine
• Food reactions that interfere with daily life, travel, work, or dining out

A food allergy specialist can help you separate confirmed allergies from suspected triggers and create a safer, more practical plan.

 

Schedule a Food Allergy Appointment

You do not have to manage food allergy concerns alone. Dr. Steven Schnipper provides expert, individualized care for patients with suspected or confirmed food allergies in Murray Hill, NYC and New Rochelle, NY.

Call the office nearest you or book online today to schedule your food allergy consultation.

 

Food Allergy FAQ

Can adults develop food allergies suddenly?

Yes. Food allergies can begin in adulthood, even to foods you have eaten before. If you notice hives, swelling, breathing symptoms, or other reactions after eating, schedule an evaluation with an allergist.

Is a positive food allergy test always a true allergy?

Not always. Food allergy test results must be interpreted with your medical history. Some people may test positive to a food but tolerate it without symptoms, which is why expert interpretation is important.

What should I bring to a food allergy appointment?

Bring a list of suspected foods, a timeline of symptoms, photos of rashes or swelling if available, medication details, previous test results, and any emergency room records related to reactions.

Can antihistamines treat a severe food allergy reaction?

Antihistamines may help some mild symptoms, such as itching or hives, but they do not replace epinephrine for anaphylaxis. Your allergist can explain when each medication is appropriate.

Should I avoid a food before I get tested?

Do not make major diet changes without medical guidance unless you have had a serious reaction or have already been instructed to avoid that food. An allergist can help you decide what is safe.

Can food allergies cause asthma symptoms?

Food allergies can sometimes trigger respiratory symptoms, including coughing, wheezing, or trouble breathing. Patients with asthma and food allergies should have a clear emergency plan.

How often should a food allergy plan be updated?

Your plan should be reviewed when symptoms change, new reactions occur, medications change, or you need updated guidance for travel, work, restaurants, or daily life.

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