- A new study suggests food allergies can be prevented by eating allergy-prone foods at a young age
- Avoiding food allergens may in fact amply the problem
- The team has found a 20 percent reduction in the rates of food allergy among infants
Vital Signs is a monthly program bringing viewers health stories from around the world.
(CNN)One bite can be enough to cause symptoms such as itching, vomiting, diarrhea, or a tightening of the throat -- the tell-tale signs of an allergy.