Body systemsQuestion 1639 of 1700
What is a food allergy?
- An immune system reaction to a certain food
- An inability to digest the sugar in milk
- A stomach infection from spoiled food
- A sign of hunger after a missed meal
Show answer
Correct answer: An immune system reaction to a certain food
The reaction may be mild or life-threatening. Food intolerance is a different problem with digestion.
Questions last reviewed: 18 October 2026