How prevalent are food allergies and is it easy to identify the symptoms?

Prevalence low. 10-15% of public reports food allergy; when screened for good history and skin or blood tests showing allergic antibodies to suspected food only 6-8% of kids under 3 and 3-4% of adults have confirmed food allergy. Typical symptoms occur within 2 hr of each time small amount of food eaten, e.g. Itchy/swollen lips/mouth, nausea, vomiting, cramps, diarrhea, flushing, hives, chest tightness, low bp.
Prevalence low. 10-15% of public reports food allergy; when screened for good history and skin or blood tests showing allergic antibodies to suspected food only 6-8% of kids under 3 and 3-4% of adults have confirmed food allergy. Typical symptoms occur within 2 hr of each time small amount of food eaten, e.g. Itchy/swollen lips/mouth, nausea, vomiting, cramps, diarrhea, flushing, hives, chest tightness, low bp.