Soy Allergies

Symptoms of soy allergies

Soy is another one of the top 10 most common allergens. As soy has become more frequently used in our processed foods of all kinds, soy allergy has also become more frequently diagnosed.

Keep in mind that you cannot become allergic to a substance without being exposed. It does not have to be a large amount of exposure, but you do have to be exposed first before the allergy will develop. The more that you eat a certain food, the more likely you can develop an allergy – if you have the tendency towards them.

This is where rotation diets can be extremely helpful. Some people have a "threshold" type allergy where they only show symptoms if the food is consumed over a certain level. Rotation diets ensure that you are not consuming any particular food or food group too frequently, and help those who have a tendency to allergy to prevent the development of new ones.

Typically, people do not develop a life-threatening allergic reaction to soy, although it is possible. However, there are a whole host of symptoms that may include: skin breakout and acne, runny nose, asthma and bronchial spasms, blood pressure disturbances, bowel disturbances, itching, swelling, fatigue, vomiting and even wheezing. In fact, some people will even report fever as part of their allergic reaction! The wide range of symptoms, in combination with the fact that the reaction can be delayed by many hours from the actual consumption of the food, can make food allergy to soy (or any food) particularly hard to diagnose.

With many food allergies, you can also cross-react to foods that are related to the offending food. In the case of soy, watch out for reactions to peanuts, green peas, chick peas, lima beans, string beans, wheat, rye and barley. The protein in these foods resembles the protein in soy, which is why you can potentially react.

Avoiding soy can be complicated because it can be hidden in many foods. Look for these ingredients and be aware that they can signal the presence of soy in a food:

If you see an ingredient that could indicate soy and would still like to use the product, check with the manufacturer. It's possible that some of these ingredients could be made from other food sources.

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