Gelatin is not only a common ingredient in various food products, but it's also used in vaccinations and as a coating for orally-taken medications. Gelatin allergy symptoms will first appear in your digestive system because it is the first system that comes into direct contact with the substance. If you suspect that you may be allergic to gelatin, avoid all products with this substance until you can be seen by your doctor.
Gelatin Allergy
Gelatin is made of animal proteins that are found in soft tissue that is formed by boiling skin or connective tissue. If the proteins in gelatin are mistaken by immune system cells as dangerous to the body, the immune system will attack the proteins with antibodies. The antibodies released in the bloodstream communicate with mast cells, located in soft tissue that triggers the production of histamine. Histamine is used to protect the body from infection. The amount of histamine created during an allergic reaction results in increased blood flow to tissues, inflammation and irritation.
Intestinal Reaction
When IgE antibodies trigger mast cells to produce histamine, the chemical is released in the lining of the digestive system, which causes inflammation throughout the intestines. The inflammation causes common digestive system symptoms such as nausea, vomiting, diarrhea, cramping and abdominal pain. Most intestinal symptoms related to gelatin allergy will develop within minutes of ingesting the substance and will last for a few hours. Common digestive medications will not alleviate symptoms while the allergen is still present.
Treatment
Because there is no cure for a gelatin allergy, the most effective treatment is to eliminate all products that contain gelatin. Read food labels to determine if a certain food contains it. Gelatin is commonly found in desserts, confectioneries, some dairy products, meats and foods labeled as "lite." Even a small amount of gelatin proteins can trigger intestinal complications. If you accidentally ingest gelatin, your doctor may advise that you take an oral antihistamine to help alleviate some allergy symptoms.
Complications
Excessive diarrhea and vomiting can lead to dehydration. Dehydration occurs when your body is depleted of more fluids than it needs to survive. If you begin to develop symptoms of dehydration, such as dry mouth, fatigue, extreme thirst, flushing of the skin and a headache, call your doctor immediately. Drinking electrolyte-infused beverages will help treat and prevent dehydration.
Considerations
Allergic reactions to gelatin typically cause more symptoms than just intestinal reactions. Other common symptoms include rashes, hives, nasal congestion, wheezing, shortness of breath and lightheadedness.


