Food And Various Allergies Biology Essay

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The human body is made with different kinds of immunity, which protects it from anything that could harm the body. During an allergic reaction, the immune system erroneously believes that what have entered the body are harmful, thus producing antibodies called IgE (immunoglobulin E) antibodies to protect itself from the harmful element. It then circulates through the blood forming IgE's, which are specific to something as light as food. After this food-specific IgE is formed, it attaches itself to the mast cell which in turn produces chemicals into the bloodstream. These chemicals include what we call Histamine which acts on the parts of the body near to the mast cell attached with IgE antibodies. Examples are nose, eye, throat, skin, lungs, or gastrointestinal tract. This causes the distinctive allergic reactions.

Take note that these cells are present in all body tissues. Once the body detects the food which it recognizes as the antibody, the body's immune system will again fight the food off by going through the whole process of the allergic reaction.

While other allergic reactions could be life-threatening such as anaphylaxis or asthma some could be just a simple rash, itchy eyes or sneezing. The reaction depends on the person and is known to be unpredictable.

Keyword: allergic

No. of words:201

Title: common allergens

There are almost 25% of the world's populations who believe they have food allergies but studies show that only 6% of children and 2% of adults suffers from known types of allergic reactions. Some might just have food intolerance. Such is not linked with the immune system. Here are 8 common allergens most people are allergic to:





Tree nuts




Kids in their earlier years might outgrow their allergies. However, it always depends on the food that they are allergic to. Usually allergies brought by eggs, milk, soy etc., are likely to be outgrown by children by the time they reach the age of 5 but only 20% of them outgrow allergies cause by peanuts and 10% on tree nuts. Allergic reactions triggered by shellfish or fish which develops later in life are unlikely to be outgrown. A person could be allergic to any foods depending on the reaction of its immune system which either rejects or accepts a type of substance that enters the body. Once the immune system marked the substance as harmful to the body, the substance, then, becomes an allergen for the person

Keyword: allergens

No. of words: 216

Title: first aid during allergic reactions

It has been a fact that prevention is better than cure and for persons who are recently experiencing allergies from different allergens, it is a must follow rule. However, there are still situations in which the person forgets or accidentally bumps to some allergens he might not know of. Mild allergic reactions could usually be treated at home; here are some first aid instructions on mild allergies:

For mild skin reactions, shower or apply cold compress.

For itching, apply calamine lotion or take over the counter antihistamine or Claritin.

If you were prescribed with epinephrine, inject yourself, as instructed. This kind of injections is premeasured for rapid relief of severe allergic reactions.

For obstruction on breathing, it would be best if any Bystander would be able to perform CPR before the ambulance arrives to keep the patient breathing.

For other reactions you should: stay calm, stay away from possible exposure to allergen, take antihistamine or Claritin and if you are feeling light headed or dizzy lie down with your leg raised higher than your head to keep the blood circulating to your brain.

These first aid instructions could only be applied to mild reactions; it is still a must to call for a doctor or an ambulance to provide appropriate medication.

Keyword: allergies

No. of words: 212

Title: misconception about allergies

There are now thousands of people around the world suffering from different kinds of allergic reactions. Listed below are some misconceptions on allergies:

Most food allergies could be outgrown. It is indeed a fact that for kids below five years of age does outgrow some of their mild allergies. However, allergies which are distinctive pass the age of five is unlikely outgrown.

Food allergy is not fatal. Mild allergies are not dangerous but there are cases in which triggers anaphylaxis or shortness of breath that could be fatal, this kind of reactions usually comes from peanuts.

A person who has allergies is allergic to other foods. Studies show that a person with food allergies is only allergic to not more than four kinds of food.

Some could be allergic to sugar. If there is one thing that the body could not be allergic to it would be sugar and fats.

Food intolerance is an allergic reaction. Although gastrointestinal tract is included to parts which are affected during allergic reactions, having an upset stomach may be a result of something else. Always bear in mind that if the reaction you are experiencing involves your immune system then and only then can it could be called an allergic reaction.

Keyword: food allergies

No. of words: 206

Title: symptoms of food allergies

Symptoms of food allergies do not show up until the body digests it. Depending on the time of digestion, only few symptoms would become distinctive. This reaction may take from a few minutes to a few hours. The initial allergic reactions could be from simple itching to difficulty breathing, while the food is being digested in the stomach, abdominal pain, nausea, diarrhea or vomiting would start, this phase is most often confused with food allergies or food intolerance.

After digestion, the antibodies produced by the body's immune system would go into the bloodstream to fight off the allergens this phase may cause eczema (skin inflammation) or hives (red or itchy bumps on skins). And when it reaches the respiratory organs, depending on the kind of allergic reaction could cause difficulty in breathing, as this allergens pass through the blood vessels it may also cause muscle weakness or lightheadedness and worst could be anaphylaxis. Anaphylaxis could be seriously fatal even if it started out with just a feeling of tingling in the throat this could go on to shortness of breath. Proper medical attention is required.

Some mild food allergies may stop to just itching and after some few treatments or dose of antihistamine.