There are several kinds of conditions that may predispose a child towards food allergies. A personal or family history of hay fever, asthma, hives or eczema typically increases the likelihood of a child developing food allergies. People with asthma also tend to have more severe allergic reactions.

Infantile colic (excessive crying) is sometimes associated with food allergies. An allergy to milk or soy may be responsible for up to one in five cases of colic in infants. Though the exact causes of this condition are unknown, it may come as a result of the immaturity of the immune system in infants with these allergies.

Allergic reactions to food can be deadly, and any type of reaction to food should be taken seriously. Individuals who suspect they may be having an allergic reaction to a food should seek immediate medical attention. However, it is important to note that not all reactions to food are actually allergic reactions, though only a physician is qualified to make the distinction. Although symptoms can be similar, the cause may be related instead to one of the following:

• Food intolerances. Usually the result of a child’s lack of a specific enzyme and inability to digest a certain food.
  
  
• Food poisoning. A reaction to bacteria, chemicals or other toxins found in contaminated or spoiled foods. Symptoms may be similar to those of a food allergy.
  
  
• Stress or psychological issues. The relationship between stress and allergy symptoms is not entirely clear. However, children may feel “sick” simply by thinking about a certain type of food.
  
  
• Other causes. A number of other conditions may be confused with a food allergy, but are less common in children.