immune disorders
Food Allergy
Other reactions to food
Some reactions to food are not an allergic reaction. differs from a food allergy because it does not involve the immune system. Instead, it involves a reaction in the digestive tract that results in digestive upset. For example, some people lack an enzyme necessary for digesting the sugar in milk (called Lactose Intolerance ). Other reactions to a food may result from contamination or deterioration of the food. can cause a reaction that resembles but is not an allergic reaction. For example, some preservatives (such as metabisulfite) and dyes (such as tartrazine, which is a yellow dye used in candies, soft drinks, and other foods) can cause symptoms such as Asthma and 