what is a food allergy? harmless food protein = threatening substance (allergen)
TRANSCRIPT
What is a food allergy?
harmless food protein = threatening substance
(allergen)
Allergens
Stimulate the immune system to make Immunoglobulin E (IgE) antibodies to attack
that food protein
Antibodies
Circulate in the blood and enter body tissues
Cells release histamine, prostaglandins and leukotrienes = allergic reaction
Allergic Reaction
Direct Food Consumption
Inhaling
Cross Contact
Touching
Onset - Immediate
to a few hours
Food Allergy SymptomsSkin
Respiratory
GI Tract
Anaphylaxis• A severe allergic reaction – happens
quickly and may cause death• Stop breathing• Dangerous drop in blood pressure
!
The Big 8 Food Allergens
Allergens
What are some non-food sources of allergens?
What is a Food Intolerance?
Inadequate digestion due to the inability to fully metabolize certain foods
Metabolic Intolerances
Most Common Food Intolerances
Gluten Intolerance (Non-Celiac and Celiac)
Negative intestinal reaction to gluten protein within wheat, rye, and barley
Lactose Intolerance
Cannot metabolize milk sugar because of deficiency of the enzyme lactase in the intestine
Symptoms of Food Intolerances
More gradual onset
Lactose Intolerance
Abdomin
al Pain Bloating
Gas
Diarrhea
Nausea
Glucose Intolerance
Abdomin
al Pain BloatingChronic
Diarrhea
VomitingConstipati
on Weight Loss
Food Intolerances - Sources
Lactose Sugar
Primarily food items that
contain milk or are made with
milk (i.e. cheese)
Gluten Protein
(wheat, rye, barley)
Primarily found in items such as breads, pasta, cookies, and pizza crust