A maize allergy is an allergy to corn products. Unlike a wheat allergy, a maize allergy is relatively uncommon due to the fact that corn is not a grain that is in nearly everything. However, it is very common for the sufferer of a corn allergy to suffer the same range of reactions including a severe one known as anaphylaxis (swelling in the throat which prevents breathing).
For those with corn intolerance, finding food that is alright to eat can be difficult. The processed foods we eat on a regular basis, all contain some type of corn product. It may be in the form of corn syrup, vanilla, or corn starch. Many of those who are inflicted with this intolerance do not realize it. It needs to be understood that an intolerance to a food and allergy are two different things. Only a small percentage of the population is allergic to food items. It is still important, no matter which you are dealing with, to know how to find foods you can eat and how to stay healthy.