Top Ten Food That Cause Allergies
Food Allergies And The Health Of The Immune System
What is Food Allergy?
The human body is protected from many types of infections due to its complex immune system. The immune system is aided by a type of proteins, which are called antibodies. Our bodies antibodies work to recognize invading contaminant such as germs, which can cause various kinds of infections in the body. There are multiple types of antibodies that help protect the body, and the immune system. The antibody that can cause ones system to experience an allergic reaction is called IgE antibody.
It's thought that IgE antibodies are normally produced in response to infections that are caused by parasites in the body's system. It is not yet fully understood why,some people make IgE antibodies to other blood components, other than infectious parasites. Such as pollens, which give rise to hay fever, and to certain foods, which give rise to food allergies. The IgE act like sticky tags, attaching itself, and virtually sticking to molecules in food, and pollen's. Which are known as, and called allergens. When someone has an allergy to a given allergen, and let's say eats a problem food or comes into contact with an airborne allergen, the IgE attaches to the allergens, and quickly setting off an allergic reaction. The most common effects that IgE triggers is the release of histamine. Histamine will trigger the changes in our body, and produce symptoms. Symptoms can vary depending on the allergen, and the to amount of exposure to the allergen.
How Food Allergies Are Diagnosed?
An appointment with a doctor is needed to truly diagnose a food allergy. The doctor will first determine if the patient is having an adverse reaction to specific foods or a true allergic reaction to a given food. The doctor goes about making this assessment with the aid of a detailed history from the patient, and the patient is as a rule asked to keep a dietary diary for time. The doctor will assess the food, and any problems that have occurred during the keeping of the diet diary.
The food allergy is then confirmed by more objective skin testing, as well as a series of blood tests and or food challenges.
A Good Health History Is Required To Diagnose A Specific Food Allergy - What Questions Will Be Asked ?
The history is the most important diagnostic tool the doctor has to diagnose a food allergy. The doctor will interviews the patient or the patient's parent, to determine if the symptoms being experienced are consistent with an actual food allergy. The doctor will ask the following questions:
What was the timing of the reaction? Did the reaction come on quickly or within an hours after eating the food? Was treatment for the allergy successful? For example, if hives appeared did they subside quickly with treatment? Did an antihistamine relieve symptoms? Was the reaction associated with a certain food? Is there a reaction each time the food is eaten? Did anyone else that ate the food, get sick? How much did the patient consume before having a reaction? The severity of the patient's reaction can sometimes relate to the amount of the suspect food eaten. How was the suspected food prepared? People can have an allergic reaction only to raw or undercooked fish. A thoroughly cooked fish will as a rule destroy allergens in the fish to which they react, so that they then can eat it with no allergic reaction. Did the patient eat other foods at the same time as the food that caused the reaction? Foods that are high in fat can delay digestion, and delay the onset of an allergic reaction.
Blood Tests And Skin Tests Will Be Necessary To Diagnosis A Food Allergy
Skin tests: In a scratch-the-skin test, a dilute extract of the suspected food is placed on the patient's skin on the forearm or back. This portion of the skin is scratched with a small bore needle, and then observed for swelling or redness. Which would signify a local allergic reaction to the food used in the test. A positive scratch test indicates that the patient has the IgE antibody in their bloodstream, that is specific for the food being tested for skin mast cells. Skin tests are rapid, simple, and relatively as a rule very safe.
A person can have a positive skin test to a food allergen, however, without experiencing allergic reactions to that food. A doctor diagnoses a food allergy only when the patient has a positive skin test to a specific allergen and the history suggests an allergic reaction to the same food. In some highly allergic people, however, especially if they have had anaphylactic reactions, skin tests should not be done because they could provoke another dangerous reaction. Skin tests also cannot be done in patients with extensive eczema.
Blood tests are required in most cases. In the situations where a skin test cannot be done, a doctor will order blood tests. Which will include RAST and the ELISA. These tests stand to measure the presence of food-specific IgE antibodies in the blood of patients.
Blood tests are more expensive than skin testing. However, are more conclusive. One problem with blood work, the results are not available immediately, as with positive skin tests.
You Will Be Required To Keep A Food Diary
The patient will be asked to keep a good diet diary.
A history alone is not enough to determine the diagnosis of food allergies. In most cases the doctor will ask the patient to keep a record of the contents of each and every meal or food intake. This keeping of a diet diary may show whether reactions occurred that are consistent with a food allergy. This food diary will help the doctor determine and pinpoint foods that are causing the allergic reaction, and a properly kept food diary will help one become antiquated with the particular foods that are triggers.
Food Allergies - Let's Talk Facts
Food allergy myths will often include stories that aren't based on scientific studies.
Top 10 Foods That Are Common To Cause Allergic Reactions
Food allergies is a very common problem. The fact is - that although 25 percent of people in the USA think they're allergic to a certain food or foods. When actually studies show that only about only 6 percent of children, and 2 percent of adults really have a food allergy. A true food allergy is a reaction that is triggered by the immune system (the part of your body's system that fights infection). It is clear that more people simply have a food intolerance, to certain food or foods. Which will give an unpleasant symptoms triggered by the intolerant food (but does not actually involve the immune system).
Most people who have food allergies, are as a rule allergic to strawberries, and tomatoes.
People Who Are Allergic To One Food Most Likely Will Be Allergic To Many Other Foods.
Actually - Studies show that although people can be allergic to any kind of food, most food allergies are caused by tree nuts, peanuts, milk, eggs, soy, wheat, fish and shellfish. These foods as a rule account for 90% of food allergies.
Once a true food allergy is diagnosed, the person should avoid the food that causes the allergic reaction. If you have an allergy, it is important to read any and all labels on foods you intend to eat. If you have a child that has food allergies, it is very important to supply their school, and other caretakers instructions that list what foods to avoid, and what to do if the food is accidentally eaten by your child.
Can One Be Allergic To Sugar ?
Sugar And Milk Allergies
Fact: A condition is called a food allergy when the immune system thinks a certain protein in a food is a "foreign" agent, and in turn will fights against it. This doesn't happen with sugars or fats.
Milk Allergy And Adults?
The fact is milk allergy is much more common in children than in adults. However, many children do outgrow the allergy by 2 or 3 years of age. Symptoms of milk allergy can include hives, vomiting, and breathing problems after consuming a dairy product. Many adults may experience symptoms similar to milk allergy, as adults often have trouble digesting the sugar in milk. This is called "lactose intolerance." Which isn't a true allergy. The symptoms of lactose intolerance are bloating, cramping, nausea, gas and diarrhea.
Allergy to Food Dyes Are Very Common.
The fact show that natural foods cause the most allergic reactions. Studies show that some food additives, such as tartrazine, or yellow No. 5 , and aspartame (NutraSweet), an artificial sweetener, do actually cause problems in some people.
Myth Number 8: A Food Allergy Is Lifelong. Although one usually can and do outgrow allergies to milk, eggs, wheat, and soybean products, not all do. However, people rarely outgrow allergies to peanuts, tree nuts, fish and shellfish.
Have you been diagnosed gluten intolerant?
Gluten Allergy or Celiac Disease?
Celiac disease is an autoimmune digestive disease that damages the villi of the small intestine and interferes with absorption of nutrients from food. What does this mean? Essentially the body is attacking itself every time a person consumes a food that contains gluten.
Are You Suffering From Celiac Disease? Here Is A Celiac Disease Symptoms Checklist. Celiac disease is triggered by consumption of the protein called gluten, which is found in wheat, barley and rye. When people with celiac disease eat foods containing gluten, their immune system responds by damaging the finger-like villi of the small intestine. When the villi become damaged, the body is unable to absorb nutrients into the bloodstream, which can lead to malnourishment.
What Are The Symptoms Of Celiac Disease? Symptoms of a gluten allergy will include a range of digestive issues, such as indigestion, heartburn, irritable bowel syndrome. One might also have an unexplained weight loss, along with constipation, diarrhea, painful flatulence,and even minor rectal bleeding. Other symptoms of Celiac in Itchy skin, and excessive fatigue, cardiomyopathy, depression, miscarriage, and peripheral neuropathy.
Serious Complications - If Celiac goes untreated, the damage caused by foods that contain gluten as a rule will cause lots of health problems. Such as anemia, bone diseases, and in some instances it may lead to intestinal cancer. However, if Celiac is diagnosed, and foods that contain gluten are removed from the diet, the outcome can be good. By changing the diet, and making sure all glutens are stayed away from, the damage caused to the intestines will improve, and in most cases the nasty discomforts will disappear completely.
Children and Celiac Disease - Gluten food allergy in young children will as a rule cause the child to lose weight. One of the other symptoms which is prominent is an extended abdomen. A child affected with Celiac may fail to thrive, and will show developmental problems. A child with gluten intolerant problems will show irritability, and will vomit easily. There are studies that have strongly suggested that there is evidence that links gluten intolerance and autism.
How Is Celiac Diagnosed
A major problem with diagnosing gluten allergy is the conditions tendency to be misdiagnosed. The symptoms of Celiac are common in many intestinal diseases. The best method to achieve a conclusive diagnosis for Celiac is to have an upper endoscopy done. An upper endoscopy is minimally invasive, and the procedure gives the doctor a visual look into the intestines of a patient. This visualization of the upper part of the gastrointestinal tract is the best way to have Celiac properly diagnosed.
Another way to help diagnose Celiac disease is a simple blood test. There are gluten allergy blood tests that can be done. However, the blood tests are not as reliable as an upper endoscopy. The Given this conundrum, many people who suspect they are gluten intolerant choose to simply remove the substance from their dietary intake. endoscopy as mentioned provides the doctor with first hand visual knowledge of what is going on in one's intestines, the extent of damage can be seen, which can lead to a better treatment plan.