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Food Allergies and Intolerances

Learn about food allergies and sensitivities, as well as celiac disease and lactose intolerance.

HHS, Food and Drug Administration

Learn about major food allergens, signs and symptoms, and the FDA's role in food allergy labeling.

HHS, Food and Drug Administration, Center for Food Safety and Applied Nutrition

What are the main food allergens? What are the most common food allergy signs and symptoms? Find answers here.

HHS, National Institutes of Health, National Institute of Allergy and Infectious Diseases

Explore research being done to help better understand, prevent, and manage food allergies.

HHS, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases

Find out the what, why, who, and how of lactose intolerance.

HHS, National Institutes of Health, MedlinePlus Magazine

This issue covers the basics on food allergies, and provides resources for more information.

HHS, National Institutes of Health, National Library of Medicine, MedlinePlus

Find information on food allergies, including diagnosis, diet changes, and more.

HHS, National Institutes of Health, National Library of Medicine, MedlinePlus

Discover what gluten sensitivity is and how it differs from celiac disease. 

HHS, National Institutes of Health, National Library of Medicine, MedlinePlus

Find information on lactose intolerance and how diet changes can help.

HHS, National Institutes of Health, National Library of Medicine, MedlinePlus

When do you need a gluten-free diet? What foods contain gluten? Get the answers here.

PennState Extension

Learn why people may need to avoid gluten-containing foods and how to maintain a gluten-free diet.