The essential differences between a food allergy and food intolerance, explained by health experts.
Did you know… Only 1-3% of people have true allergies. Food intolerances affect far more individuals.
Allergy
In an allergy, your immune system produces antibodies against food proteins. Consuming the allergen triggers an immediate response: your body releases histamine, causing symptoms like skin rashes, red eyes, or a swollen mouth. Reactions can escalate to life-threatening anaphylaxis, requiring urgent care. If you suspect an allergy, consult your GP for reliable testing.
Food Intolerance Symptoms often emerge hours later—or even after two days—complicating identification. Complaints vary widely and feel nonspecific, including diarrhea, constipation, nausea, fatigue, or skin issues that aren't obviously diet-related.
Intolerances are tricky to diagnose due to delayed, highly personal reactions. While shared experiences offer insights, self-tracking via elimination diets reveals your specific triggers most effectively.
