Food allergy is actually an abnormal response triggered by the immune system to food as if it is threatening. Food intolerance looks similar to food allergies. However, the difference lies in how each one of them affects an individual. Food allergy is extremely intrinsic and to an extent, affects the internal organs. 

On the other hand, food intolerance is less severe, mostly just affects the digestive system due to the inability to digest that particular food properly, leading to an upset stomach. Most of the people suffer from food intolerance only, but they confuse it with food allergy.

About ninety percent of all cases of food allergy are related to only eight types of food as per research statistics. These are milk, tree nuts, egg, peanut, soy, wheat, shellfish, and fish.

The Reaction:\

In order to understand how symptoms manifest, it is of utmost importance, in this case, to understand how an allergic reaction to food occurs. An allergic reaction is a bi-step process as discussed further.

Step1: On exposure to the food allergen for the first time, the body reacts abnormally and produces IgE antibodies against the perceived allergen. These circulate throughout the entire body with blood and attach themselves to basophils (found in blood) and mast cells (found in sites like the nose, lungs, throat, gastrointestinal tract, skin, etc.).

Step 2: The next time the body is exposed to a particular food allergen, it gets alert and alarms the tissue that releases histamine in large quantity. Depending on the site of release, allergy symptoms are caused, ranging from mild to severe to potentially life-threatening (for example, in anaphylaxis).

The time span for an allergic reaction manifesting into symptoms can vary between a few minutes to several hours post exposure to the food allergen. The site of mast cells for release of histamine greatly affects the location and timing of the reaction.

Who is at Higher Risk?

If a person has a family history of developing a food allergy, it creates even greater chances for him/ her to have the same or similar reactions. If both the parents have some kind of allergic reaction to food, it is very likely that the child would have that too.

Symptoms:

Symptoms of food allergies largely depend on the sites of mast cells that release histamines. It is possible that these sites are located in nose, ears, or throat leading to itching in mouth, having a trouble in swallowing and breathing, and swelling of lips and tongue. If the location is in the gastrointestinal tract, it may lead to vomiting, diarrhoea, and abdominal pain. If it is in the skin, it might lead to hives, itching, decolourization, pigmentation, worsened eczema, etc.

Cross Reactivity:

If a person has an allergy to a particular food, it is advisable to abstain from similar types of food. For example, if somebody is allergic to crab, he/ she should abstain from shrimp, crayfish, lobster, etc. too as they might also trigger the reaction. This is called cross reactivity.

Treatment:

It is always advisable to abstain from foods which cause an allergic reaction in an individual. However, in case it has already occurred, there are two major types of medication which help in relieving the symptoms. Antihistamines are used for treating mild to chronic reaction, whereas adrenalines are used for severe reaction like in anaphylaxis.

Take Away:

Food allergy is usually a condition for life and cannot be permanently treated. However, symptoms can be relieved. Therefore, it is advisable to avoid the allergy, causing group of food.

Food Allergy - Everything About It!

Food is a very important part of your life as it provides all the necessary nutrients required by your body and is essentially, the fuel for all things to function within. However, many people may have aversion to certain kinds of food as it causes adverse reactions within their body. Let s look at some of the common food allergies that people commonly report and how to identify them.

Allergies v/s Intolerances: It is important to note here that there is a significant difference between food sensitivities or intolerances and allergies. Sensitivities or intolerances cause adverse effects on your body inevitably when you consume certain types of foods. One such example is diarrhea, caused by ingesting cheese or milk by lactose intolerant people. However, allergies are caused when the immune system within your body mistakes harmless food as something that might harm you and thus tries to protect you from its effects. This results in reactions within your body which may be very painful and problematic.

Common foods that trigger allergies
Some of the common foods that trigger allergies are:
1. Peanuts
2. Shellfish
3. Other forms of tree nuts such as almonds, walnuts etc.
4. Gluten rich grains such as wheat, rye barley, oats
5. Certain types of fish
6. Eggs
7. Soy products
8. Milk (allergic reactions mostly occur within children)

Some other foods which have been known to cause allergies in rare cases are:
1. Meats such as pork, chicken, beef, mutton
2. Corn and corn products
3. Gelatin
4. Certain spices such as mustard, garlic and coriander among others
5. Certain seeds such as poppy, sunflower, or sesame

Symptoms of allergies
In certain cases, the allergies might manifest immediately, almost in a matter of minutes, within the body. However, in many cases, it may take a few hours for it to show up. The symptoms may range from mild to quite severe. Mild symptoms will make it quite hard to actually diagnose it as a food allergy.

Some of the milder symptoms could be:
1. Hives or eczema could form on your skin which may be very itchy. These would look like raised swollen areas that could be red, inflamed, and dry.
2. The inside of your mouth and ears may become itchy
3. You could suddenly develop a runny or a blocked nose and start sneezing or coughing.
4. Your eyes may become watery, red and itchy
5. You may develop a funny taste in your mouth
6. Others symptoms may include throwing up and even loose motions

Other severe forms of allergies can be caused mostly by shellfish and peanuts and other forms of nuts and fish. Symptoms in such cases would look like:
1. Uneven heartbeat
2. Difficulty in swallowing and breathing
3. Feeling of extreme weakness, confusion
4. Passing out or feeling light headed
5. The tongue, throat or lips may swell up
6. Chest pain

Common Foods that Can Trigger Allergy

Silicosis is a lung disorder that develops as a result of exposure to dust, which has silica (chemical compounds) content. Silicosis significantly makes you prone to other serious health disorders. It is an incurable disorder and a prescribed dosage of medications in the form of cough syrups or antibiotics can help in the regulation of the symptoms. Inhalers are also useful to clear the blocked air passages. In extreme cases, the doctors might suggest a transplant of the lung to eradicate silicosis.

Causes
Silicosis is caused primarily due to a long- term exposure (usually 5-15 years) to silica. But a short-term exposure (for a few weeks or months) can also result in silicosis, which tends to worsen considerably as time progresses, if not diagnosed in its early stages. Silica is a natural dust particle, which is found in abundance in rocks, sand, bricks or concrete. Once silica gets into your body through inhalation, these particles tend to damage the tissues of the lungs by inflicting minor incisions. This considerably disfigures the lungs, thereby making the whole process of breathing rather troublesome. Long-term exposure to silica might further lead to lung cancer. People who work in mines, glass or asphalt manufacturing industries, iron and steel industries and construction sites are at increased risks of developing this condition.

Symptoms
The Symptoms of Silicosis begin mildly, but tend to worsen with time. The symptoms of Silicosis are as follows:
a. The initial symptoms include severe weariness, repeated instances of coughing and experiencing trouble while breathing. These symptoms usually recur as time progresses.

b. In the latter stages of silicosis, the symptoms gradually worsen accompanied by severe pain in the chest along with fever, night sweat and sudden loss of body weight.

Silicosis might make you susceptible to other infections related to the respiratory systems such as tuberculosis.

Prevention
In order to prevent Silicosis, you should wear suitable protective gear and a respirator on your face while working in a place which has risks of silica exposure.

Causes and Symptoms of Silicosis

Allergies are a reaction of your immune system to any foreign matter, such as pet dander, pollen or bee venom, and not everyone is affected in the same way.
Antibodies are substances produced by your immune system to protect you from harmful invaders that can cause infections or make you ill.
The immune system produces antibodies when it comes into contact with allergens. Your immune system can recognise any allergen as threatening even if it s not. As a result, your skin, airways, digestive system or sinus gets inflamed.
Allergies can vary greatly in severity from mild irritations to anaphylaxis (a likely life-threatening emergency). Allergies are mostly incurable; however, there are various treatments available to alleviate allergy symptoms.
Causes-
Common triggers of allergy include:
Airborne allergens, such as mould, dust mites, animal dander and pollen.
Certain foods, especially milk, eggs, shellfish, fish, soy, wheat, tree nuts and peanuts.
Insect bites, such as wasp stings or bee stings.
Medications, specifically penicillin-based antibiotics or penicillin.
Latex, or any allergen you touch, causes skin infections.
Symptoms-
Symptoms of allergy depend on its type.
Hay fever (allergic rhinitis) symptoms include:
Sneezing
Itching of the roof of the mouth, eyes or nose
Stuffy, runny nose
Swollen, red or watery eyes (conjunctivitis)
Symptoms of food allergy include:
Tingling mouth
Swollen throat, face, tongue or lips
Hives
Anaphylaxis (a critical, deadly allergic reaction)
An allergy caused by insect stings can manifest in symptoms such as:
Swelling at the site of the sting
Hives or itching
Breathing problems, wheezing, coughing or chest tightness
Anaphylaxis
A drug allergy can lead to symptoms such as:
Hives
Itchy skin
Rashes
Facial swelling
Wheezing
Anaphylaxis
Atopic dermatitis (skin allergy) symptoms include:
Itching
Reddened skin
Peeling or flaky skin
Treatment-
Treatments of allergy include:
Avoiding Allergens: Your doctor can help you take necessary steps to recognise and avoid the allergens that trigger allergies. This is usually the most relevant step in the prevention of allergic reactions and reduction of symptoms.
Medicines to Lower Symptoms: Eye drops, nasal sprays or oral medications are commonly prescribed to reduce reactions and alleviate symptoms.
Immunotherapy: If the allergy is severe or other treatments fail to relieve symptoms, allergen immunotherapy is recommended. In this treatment, you get injected by a number of clarified allergen extracts over the years.
Emergency Epinephrine: If your allergy is severe, your doctor will provide you with an emergency epinephrine shot that you can carry with you everywhere. 

Allergies: Causes, Symptoms and Treatments

Food allergies have been on the rise and many food items have been identified as potential allergens. Common items like citrus fruits, coconut, peanuts, tree nuts, gluten can cause allergies. You don't need to stay away from your favorite dish just because it contains one of the allergy-causing ingredients. You can customize your dish with suitable substitutions and enjoy your food without worrying.

Peanut

Peanut is one of the most common allergy-causing items. It has severe effects on people who are allergic to it. On its consumption, the throat of allergic person swells up, blocking the airways which can lead to anaphylaxis. So, for people who are allergic to this grain legume, peanut -laden cuisines like Thai food, peanut butter, and jelly are all prohibited. But you can replace peanut with sesame seeds, pumpkin seeds, and hemp which are available in butter form as well.

Citrus fruits

Lime, orange, lemon, and grapefruit have been seen to cause discomfort in both adolescents and adults. There are so many citrus-flavored drinks that it becomes difficult to find a nice harmless drink. But, if you are allergic to these fruits you can go for strawberry, raspberry, and apple-flavored drinks, which are easily available.

Coconut

Coconut is used in place of milk in vegan recipes; it can replace milk in food items like ice cream, sweet drinks, and curries. If you are allergic to coconut, substitute it with rice, soy, oats milk and even soaked cashews.

Wheat

Wheat is not only off limits to people with celiac disease who have to lead a gluten free life but for some who are allergic to wheat specifically. Pasta, bread and many other kinds of foods are made up of wheat, but you can opt for tapioca or rice flour which is also used to make such items.

Best Substitutes for Common Food Allergens

It is no longer so surprising to read about alarming air pollution levels in our cities. On more than one occasion, these levels have risen above the danger levels. For some people, this may simply create an annoying fog that makes it difficult to see. For others, it can cause serious health issues. Air pollution is one of the most common reasons for the growing instances of asthma and allergies. Children are most susceptible to such diseases caused by air pollution.

Asthma and Allergies
Asthma can affect children even before their fifth birthday and the condition is characterized by breathlessness caused by a constriction of the airways. While the root cause of asthma is unknown, it is usually seen that asthmatic patients are more sensitive to others to particles in the air such as pollutants, dander, dust, smoke etc. Thus, the airways construct as a reaction to these allergens. Changes in the weather, a sudden cold draft or the flu can also aggravate asthma.

Can you Protect Your Children from Asthma?
Wheezing, panting, finding it difficult to breathe and a persistent cough are some of the signs of asthma. If you notice these symptoms, you must consult a doctor immediately. At home, here are a few things you could do.

Avoid exposing your children to smoke: Do not smoke around your children or allow others to smoke around them. If you cannot give up the habit, wear a smoking jacket when you smoke and take this off before you play with your children. When you ll go out, drive with the windows up so that your child does not inhale exhaust smoke. Set your air conditioner to circulate air within the car itself.
Dust often: Try and keep your home as dust free as possible. Use a wet cloth to clean so that the dust does not fly in the air. Wash all your bed linen once a week. Carpets and rugs should be vacuumed regularly or dusted outside. It may also be a good idea to invest in dust mite impermeable covers for your child s mattress and pillows.
Keep your Pets clean: If you share your home with pets, bathe them once a week and brush them daily. Do not let them climb on to the furniture or your beds. Also, avoid having their toys lie on your beds.
Wear a face mask: Try and time your child s outdoor activities when the pollution levels are low. Buy yourself and your child a face mask that will filter the air they breathe in. These should be worn whenever they play outdoors.
These simple steps could help your child be healthier and can prevent asthma and other such allergic reactions.

Increasing Asthma & Allergy In Children - What Should You Do?

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