Soy allergy
Encyclopedia
Soy allergy is a type of food allergy
Food allergy
A food allergy is an adverse immune response to a food protein. They are distinct from other adverse responses to food, such as food intolerance, pharmacological reactions, and toxin-mediated reactions....

. It is a hypersensitivity to diet
Diet (nutrition)
In nutrition, diet is the sum of food consumed by a person or other organism. Dietary habits are the habitual decisions an individual or culture makes when choosing what foods to eat. With the word diet, it is often implied the use of specific intake of nutrition for health or weight-management...

ary substances from soy causing an overreaction of the immune system which may lead to severe physical symptoms for millions of people. The Asthma and Allergy Foundation of America
Asthma and Allergy Foundation of America
The Asthma and Allergy Foundation of America is a non-profit organization dedicated to finding a cure for and controlling asthma, food allergies, nasal allergies and other allergic diseases. AAFA's mission is also to educate the public about these diseases...

 estimates soy is among the nine most common food allergens for pediatric and adult food allergy patients. It is usually treated with an exclusion diet
Dieting
Dieting is the practice of eating food in a regulated fashion to achieve or maintain a controlled weight. In most cases dieting is used in combination with physical exercise to lose weight in those who are overweight or obese. Some athletes, however, follow a diet to gain weight...

 and vigilant avoidance of foods that may be contaminated with soy ingredients. The most severe food allergy reaction is called anaphylaxis
Anaphylaxis
Anaphylaxis is defined as "a serious allergic reaction that is rapid in onset and may cause death". It typically results in a number of symptoms including throat swelling, an itchy rash, and low blood pressure...

 and is a medical emergency
Medical emergency
A medical emergency is an injury or illness that is acute and poses an immediate risk to a person's life or long term health. These emergencies may require assistance from another person, who should ideally be suitably qualified to do so, although some of these emergencies can be dealt with by the...

 requiring immediate attention and treatment with Epinephrine
Epinephrine
Epinephrine is a hormone and a neurotransmitter. It increases heart rate, constricts blood vessels, dilates air passages and participates in the fight-or-flight response of the sympathetic nervous system. In chemical terms, adrenaline is one of a group of monoamines called the catecholamines...

.

Reactions and treatment

Some people who are allergic to soy protein may have an extreme allergic reaction and go into anaphylactic shock (anaphylaxis). In cases of anaphylaxis, emergency medical personnel typically administer epinephrine
Epinephrine
Epinephrine is a hormone and a neurotransmitter. It increases heart rate, constricts blood vessels, dilates air passages and participates in the fight-or-flight response of the sympathetic nervous system. In chemical terms, adrenaline is one of a group of monoamines called the catecholamines...

 (available as an autoinjector
Autoinjector
An autoinjector is a medical device designed to deliver a single dose of a particular drug....

, such as EpiPen
EpiPen
An epinephrine autoinjector is a medical device used to deliver a measured dose of epinephrine using autoinjector technology, most frequently for the treatment of acute allergic reactions to avoid or treat the onset of anaphylactic shock.Trade names for this device include EpiPen, Twinject,...

) and an antihistamine
Antihistamine
An H1 antagonist is a histamine antagonist of the H1 receptor that serves to reduce or eliminate effects mediated by histamine, an endogenous chemical mediator released during allergic reactions...

 such as Benadryl (diphenhydramine
Diphenhydramine
Diphenhydramine hydrochloride is a first-generation antihistamine possessing anticholinergic, antitussive, antiemetic, and sedative properties which is mainly used to treat allergies. Like most other first-generation antihistamines, the drug also has a powerful hypnotic effect, and for this reason...

). In event of an allergic reaction, the victim should see a physician or immediately go to the emergency room, as anaphylaxis can be fatal if not treated immediately.

Food sources of soy protein

Many fast-food restaurants commonly use soy protein in hamburger buns (soy flour) hamburger meat (soy protein) and hydrolyzed vegetable protein
Hydrolyzed vegetable protein
Acid-hydrolyzed vegetable protein, or HVP, is produced by boiling cereals or legumes, such as soy, corn, or wheat, in hydrochloric acid and then neutralizing the solution with sodium hydroxide. The acid hydrolyzes, or breaks down, the protein in vegetables into their component amino acids...

 (HVP) in sauces. On their respective websites, McDonald's and Burger King list soy flour as an ingredient in their hamburger buns. U.S. Nutrition Information Multi-grain breads, doughnuts, doughnut mix and pancake mix commonly contain soy flour. Nearly all bread products available in the US now contain soy. Soy can now be found in nearly all types of foods, from meat to ice cream, to cheese, to french fries. Many foods are contaminated with soy due to being cooked in soy oil. At the Jack in the Box fast food chain for example, everything fried is cooked in a soy oil. At Baskin Robbins, over half of all ice creams offered contain soy. Canned tuna may contain vegetable broth which contains soy protein.

Some products [for reasons having to do with national regulation of soy products] don't list soy protein or soy flour on their ingredients labels, yet they still contain soy. There are still many latent issues resolving how soy should be regulated, as well as its long term effects on human health.
Unilever Holland use soy bean oil in their peanut butter among other foods, which they state on their website concerning allergies contains no soy bean. People will have allergy reactions but the reaction may be put on peanuts rather than soy oil.

Products containing soy protein include:
  • edamame
    Edamame
    or Edamame bean is a preparation of immature soybeans in the pod commonly found in Japan, China, and Hawaii. The pods are boiled in water together with condiments such as salt, and served whole....

  • miso
    Miso
    is a traditional Japanese seasoning produced by fermenting rice, barley and/or soybeans, with salt and the fungus , the most typical miso being made with soy. The result is a thick paste used for sauces and spreads, pickling vegetables or meats, and mixing with dashi soup stock to serve as miso...

  • natto
    Natto
    is a traditional Japanese food made from soybeans fermented with Bacillus subtilis. It is popular especially as a breakfast food. As a rich source of protein and probiotics, nattō and the soybean paste miso formed a vital source of nutrition in feudal Japan. Nattō can be an acquired taste because...

  • shoyu sauce
  • soy (soy albumin, soy fiber, soy flour, soy grits, soy milk, soy nuts, soy sprouts)
  • soya
    Soya
    Soya can mean:* Soya bean* Sōya District, Hokkaidō* Sōya Subprefecture, Hokkaidō* Soya3D, a high-level three-dimensional rendering engine for the Python programming language* Soya sauce, a fermented sauce made from soybeans, roasted grain, water and salt....

  • soybean
    Soybean
    The soybean or soya bean is a species of legume native to East Asia, widely grown for its edible bean which has numerous uses...

     (curd
    Curd
    Curds are a dairy product obtained by curdling milk with rennet or an edible acidic substance such as lemon juice or vinegar, and then draining off the liquid portion. The increased acidity causes the milk proteins to tangle into solid masses, or curds. The remaining liquid, which contains only...

    , granules)
  • soybean butter
  • soy protein
    Soy protein
    Soy protein is a protein that is isolated from soybean. It is made from dehulled, defatted soybean meal. Dehulled and defatted soybeans are processed into three kinds of high protein commercial products : soy flour, concentrates, and isolates. Soy protein isolate has been used since 1959 in foods ...

     (concentrate
    Concentrate
    A concentrate is a form of substance which has had the majority of its base component removed. Typically this will be the removal of water from a solution or suspension such as the removal of water from fruit juice...

    , isolate
    Isolate
    Isolate may refer to:* Genetic isolate, a population of organisms that has little genetic mixing with other organisms of the same species* Isolate , 2007* Isolate , 1992...

    )
  • soy milk
    Soy milk
    Soy milk and sometimes referred to as soy drink/beverage is a beverage made from soybeans. A stable emulsion of oil, water, and protein, it is produced by soaking dry soybeans and grinding them with water...

  • soy sauce
    Soy sauce
    Soy sauce is a condiment produced by fermenting soybeans with Aspergillus oryzae or Aspergillus sojae molds, along with water and salt...

    , tamari
  • tempeh
    Tempeh
    Tempeh , or tempe , is a traditional soy product originally from Indonesia. It is made by a natural culturing and controlled fermentation process that binds soybeans into a cake form, similar to a very firm vegetarian burger patty...

  • textured vegetable protein
    Textured vegetable protein
    Textured or texturized vegetable protein , also known as textured soy protein , soy meat, or soya meat is a meat analogue or meat extender made from defatted soy flour, a by-product of extracting soybean oil...

     (TVP)
  • tofu
    Tofu
    is a food made by coagulating soy milk and then pressing the resulting curds into soft white blocks. It is part of East Asian and Southeast Asian cuisine such as Chinese, Japanese, Korean, Indonesian, Vietnamese, and others. There are many different varieties of tofu, including fresh tofu and tofu...



The following food additives may contain soy protein:
  • chocolate
    Chocolate
    Chocolate is a raw or processed food produced from the seed of the tropical Theobroma cacao tree. Cacao has been cultivated for at least three millennia in Mexico, Central and South America. Its earliest documented use is around 1100 BC...

  • hydrolyzed vegetable protein
    Hydrolyzed vegetable protein
    Acid-hydrolyzed vegetable protein, or HVP, is produced by boiling cereals or legumes, such as soy, corn, or wheat, in hydrochloric acid and then neutralizing the solution with sodium hydroxide. The acid hydrolyzes, or breaks down, the protein in vegetables into their component amino acids...

     (HVP)
  • flavoring (including natural and artificial)
  • canned chicken broth
  • vegetable broth, gum, protein, and starch
  • bouillon cubes (beef, chicken, vegetable, etc.)
  • lecithin
    Lecithin
    Lecithin is a generic term to designate any group of yellow-brownish fatty substances occurring in animal and plant tissues, and in egg yolk, composed of phosphoric acid, choline, fatty acids, glycerol, glycolipids, triglycerides, and phospholipids .The word lecithin was originally coined in 1847 by...

  • caramel color
  • vegetable
    Vegetable
    The noun vegetable usually means an edible plant or part of a plant other than a sweet fruit or seed. This typically means the leaf, stem, or root of a plant....

  • vegetable oil
  • methylcellulose
    Methylcellulose
    Methyl cellulose is a chemical compound derived from cellulose. It is a hydrophilic white powder in pure form and dissolves in cold water, forming a clear viscous solution or gel. It is sold under a variety of trade names and is used as a thickener and emulsifier in various food and cosmetic...

  • vegetable fat
  • vegetable oil
  • mono- and di-glycerides

Dosage tolerance

Many people with soy allergy can tolerate small to moderate amounts of soy protein: the typical dose needed to induce an allergic response is about 100 times higher than for many other food allergens, with 90% of sufferers being able to tolerate doses up to 400 mg. As a result, not all of those allergic to soy need to avoid very minor sources of soy protein such as soy oil or soy lecithin.

See also

  • Allergy
    Allergy
    An Allergy is a hypersensitivity disorder of the immune system. Allergic reactions occur when a person's immune system reacts to normally harmless substances in the environment. A substance that causes a reaction is called an allergen. These reactions are acquired, predictable, and rapid...

  • List of allergies
  • Anaphylaxis
    Anaphylaxis
    Anaphylaxis is defined as "a serious allergic reaction that is rapid in onset and may cause death". It typically results in a number of symptoms including throat swelling, an itchy rash, and low blood pressure...

  • Lactose intolerance
    Lactose intolerance
    Lactose intolerance, also called lactase deficiency or hypolactasia, is the inability to digest and metabolize lactose, a sugar found in milk...

  • Milk allergy
    Milk allergy
    A milk allergy is a food allergy, an adverse immune reaction to one or more of the constituents of milk from any animal...

  • Medical emergencies

External links

  • Soy Allergy information page. Asthma and Allergy Foundation of America
    Asthma and Allergy Foundation of America
    The Asthma and Allergy Foundation of America is a non-profit organization dedicated to finding a cure for and controlling asthma, food allergies, nasal allergies and other allergic diseases. AAFA's mission is also to educate the public about these diseases...

  • Soy Allergy at Food Allergy Initiative
    Food Allergy Initiative
    The Food Allergy Initiative is a 501 non-profit organization founded in 1998 with the mission to fund food allergy research that seeks a cure, to improve diagnosis and treatment, and to keep patients safe through advocacy and education. FAI is the largest private source of funding for food...

  • Soy - One of the nine most common food allergens Health Canada
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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