Food Allergies
Living with Food Allergies: A Dietitian’s Guide to Safe, Balanced Eating
8 min read
By ONE Nutrition team
Reviewed by Yesenia Chediak, RD
Living with a food allergy can make everyday meals feel more complicated than they should. Grocery shopping, school lunches, work events, travel, and restaurant meals may all require extra planning. Parents may worry about their child’s growth and social experiences, while adults may feel frustrated by constantly checking ingredients or explaining their needs.
The good news is that allergy-friendly eating does not have to mean eating a limited or repetitive diet. A registered dietitian can help you create a safe, balanced, and realistic approach that fits your health needs, culture, schedule, and preferences.
At ONE Nutrition, our registered dietitians provide compassionate, evidence-based support through convenient virtual appointments. Many clients with BCBS, Aetna, or Cigna pay $0 out of pocket, depending on their plan and eligibility.
How common are food allergies?
Food allergies affect approximately 33 million people in the United States, according to Food Allergy Research & Education (FARE). That includes about 5.6 million children, or nearly 8% of children, roughly one in every 13 children.
About 40% of children with food allergies have more than one food allergy, which can make meal planning and nutrition support more challenging. Food allergies can also begin in adulthood, so a new diagnosis is not limited to childhood.
What Are the 9 Major Food Allergens?
In the United States, nine major food allergens must be identified on packaged food labels:
- Milk
- Egg
- Peanut
- Tree nuts
- Wheat
- Soy
- Fish
- Crustacean shellfish, such as shrimp, crab, and lobster
- Sesame
The first eight allergens were recognized under federal labeling laws, and sesame was added as the ninth major allergen beginning in 2023. More than 170 foods have been reported to cause allergic reactions, but these nine account for most serious reactions in the U.S.
Food allergy vs. food intolerance: What is the difference?
The words “allergy” and “intolerance” are often used interchangeably, but they describe different processes.
A food allergy involves the immune system. Reactions can include hives, swelling, vomiting, coughing, wheezing, trouble breathing, or anaphylaxis. Even a small amount of an allergen may cause a reaction in some people.
A food intolerance does not involve the immune system in the same way. It often causes digestive symptoms such as gas, bloating, abdominal discomfort, or diarrhea. Lactose intolerance is one common example.
Celiac disease is another distinct condition. It is an autoimmune disease triggered by gluten and requires careful medical management. It is not the same as a wheat allergy or a general gluten sensitivity.
The difference matters because the appropriate plan depends on your diagnosis. A person with a confirmed food allergy may need strict avoidance and an emergency action plan. Someone with an intolerance may be able to tolerate a specific amount or form of the food. A dietitian can help you avoid unnecessary restrictions while respecting the guidance of your allergist or physician.
A dietitian does not diagnose food allergies or replace emergency medical care. If you experience symptoms of a severe allergic reaction, follow your emergency plan, use epinephrine as prescribed, and seek immediate medical attention.
How to Read Food Labels with Food Allergies
Reading labels is one of the most important skills for managing food allergies. It can also be exhausting, especially when you are reading every package for yourself or your child.
A food allergy dietitian can help you develop a repeatable system:
1. Check the full ingredient list
Review the full ingredient list for the allergen and ingredients that may be derived from it. For example:
- Milk may appear as whey, casein, or milk solids.
- Egg may appear as albumin or ovalbumin.
- Sesame may appear as tahini or sesame flour.
- Wheat may be present in flour, breadcrumbs, pasta, or baked goods.
2. Look for a “Contains” statement
Packaged foods often include a separate statement such as “Contains: Milk and Soy.” This can make label reading faster, but it should not replace reviewing the complete ingredient list.
3. Recheck familiar foods
Manufacturers can change recipes, suppliers, or processing facilities. Even if a product has always been safe for your family, it is wise to read the label each time you purchase it.
4. Understand advisory statements
Statements such as “may contain” or “processed in a facility that also processes…” are voluntary and are not standardized in the same way as required allergen declarations. Your allergist can help determine how to interpret these warnings based on your reaction history, and a dietitian can help you identify practical alternatives.
For additional information, review the FDA’s food allergy labeling guidance and FARE’s food allergy facts and statistics.
Preventing nutritional gaps when eliminating foods
Removing a food is only one part of allergy management. The next step is replacing its nutrients.
For example:
- Avoiding milk: You may need to pay attention to calcium, vitamin D, protein, and iodine. A dietitian can help you compare fortified alternatives and identify safe sources.
- Avoiding eggs: You may need new sources of protein and choline, particularly if eggs were a regular breakfast food.
- Avoiding wheat: Wheat-free eating may reduce intake of iron, B vitamins, and fiber if enriched breads and cereals are not replaced thoughtfully.
- Avoiding soy, peanuts, or tree nuts: These foods often provide protein and healthy fats, especially in vegetarian or plant-based diets. Beans, lentils, seeds, poultry, meat, or safe dairy alternatives may help fill the gap.
- Avoiding fish or shellfish: You may need alternative sources of protein and omega-3 fats, such as flaxseed or chia, when appropriate.
Children with multiple food allergies may need additional support to maintain adequate calories and nutrients for growth. Adults may need help preserving energy, muscle mass, or a familiar eating pattern. A registered dietitian can help you find safe substitutions that preserve nutrition, variety, and foods you already enjoy—rather than simply adding more foods to an avoidance list.
Making school and work meals more manageable
Food allergy management often extends beyond the kitchen.
At school
Families may need to coordinate with teachers, school nurses, food service staff, and caregivers. Helpful steps can include:
- Preparing safe lunches and snacks your child will actually eat.
- Reviewing classroom celebrations and field-trip plans in advance.
- Providing written instructions and emergency medication according to the child’s medical plan.
- Teaching age-appropriate skills, such as not trading food and asking an adult before eating an unfamiliar item.
More than 15% of school-aged children with food allergies have reportedly experienced a reaction at school, so planning for classroom parties, cafeterias, and activities outside the lunchroom is important.
At work
Adults may encounter allergens at catered meetings, shared kitchens, office celebrations, or business travel. A dietitian can help you create portable meals, shelf-stable backup snacks, and a concise way to communicate your allergy to colleagues or catering staff.
You might say:
“I have a food allergy to ____. Could you please confirm whether this dish and its sauces, oils, and preparation surfaces are free from that allergen and cross-contact?”
Eating at restaurants and social events
Restaurant meals can feel stressful, but preparation can make them more comfortable.
Before ordering:
- Call ahead when possible.
- Tell your server about the allergy before placing the order.
- Ask about sauces, marinades, cooking oils, shared fryers, and preparation surfaces.
- Be cautious when staff cannot answer questions clearly.
- Consider a backup plan, such as eating beforehand or carrying a safe snack.
A dietitian can help you practice these conversations and identify meal options that are simple, satisfying, and appropriate for your specific allergy. The goal is not to eliminate social experiences- it is to help you participate with a plan.
How a Registered Dietitian Can Help With Food Allergies
Food allergies require attention, but they should not define every meal or social decision. ONE Nutrition registered dietitians can help you:
- Understand your diagnosis and dietary restrictions.
- Read labels with greater confidence.
- Prevent nutrient deficiencies.
- Plan meals for children, adults, and families.
- Navigate school, work, restaurants, travel, and celebrations.
- Adapt allergy-friendly meals to your culture and preferences.
- Create a flexible plan without fad diets or unnecessary fear.
Food Allergy Nutrition Support That Fits Your Life
Our registered dietitians provide personalized virtual nutrition support to help individuals and families manage food allergies while maintaining a safe, balanced and enjoyable eating pattern.
Book an appointment or check your insurance estimate to get started. You can also explore more evidence-based nutrition guidance on the ONE Nutrition blog.
This article is for educational purposes only and is not a substitute for individualized medical advice, diagnosis, or emergency care. Always follow your allergist’s recommendations for allergen avoidance and emergency treatment.