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Soy is one of the most frequent causes of allergies inchildren, and it can start as early as in infancy when babies may get an allergicreaction to infant formula containing soy. By the age of three, most childrenwill stop experiencing these reactions although in some cases it may continue throughoutthe adulthood as well. Adults can also have soy allergy and reactions range from mild to severe where theperson may undergo anaphylactic shock, which can be life threatening. It isimportant to notify the doctor of any reaction the person might have to soy after which they can take action to prevent future or more severe reactions.


In most cases, soy allergies pass without any seriousconsequences and signs appear minutes to an hour after the consumption of troublesomefood. The person allergic to soy may experience a tingling feelingin the mouth, nausea, vomiting, diarrhea and pains in the abdominal area, while partsof the body such as the face, lips, tongue and throat may start to swell. Theperson will feel dizzy, light-headed or may even faint and breathing may become difficult, due to a runny nose. Their skin may itch or they can get hives oreczema.

Severe reaction tosoy

Rarely, anaphylaxis, a potentially life-threatening reactionoccurs. People with asthma and those with peanut and other allergies are at ahigher risk of developing the symptoms including a rapid pulse and shockaccompanied with the extreme decrease of blood pressure. Their air passages maybecome blocked and breathing made harder as a result of a swelling or lump inthe throat. They can feel dizzy lightheaded or even lose consciousness. Drooling,changes in voice quality and flushing of the entire body are also the signs ofa severe reaction.

Soy allergy ininfants

Babies who had an allergic reaction to milk-based formulaare often switched to a soy-containing alternative, and these are the most commoncases in which infants develop an allergic reaction to soy. It is best to see the doctor when the allergic reaction isin progress or a short while after the consumption of soy. In cases of anaphylaxis, it is vital to seek emergency treatment.


In infants, breast-feeding is the only reliable way toprevent soy and other food allergies while adult people with the soy allergy should try to stay away fromsoy-containing foods by reading the labels. It is essential to refrain frompeanuts since soybeans and peanuts have the common allergy inducingconstituents. Carrying an emergency shot of epinephrine (adrenaline) canbe prescribed to those who are at higher risk of severe reactions. Medical alertbracelet or a necklace is also the way to warn others that an individual maysuffers from a serious allergic reaction.

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