Harvard Health Blog

Food allergy, intolerance, or sensitivity: What’s the difference, and why does it matter?

By: Marcelo Campos, MD, Contributor Chances are that you or someone you know has experienced unpleasant symptoms after a meal or snack. Maybe you experienced some degree of sneezing, wheezing, rashes, brain fog, joint pain, nausea, bloating, diarrhea, or another symptom. This may have led you to believe you have a food allergy ó and maybe you do. But itís also possible that you have a food intolerance, celiac disease, or a food sensitivity. This…

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