Food Testing
Adverse reactions to food may initiate a myriad of physiological effects in the body.
These reactions can affect the immune system in different ways and can result in signs and symptoms ranging in severity from mild to life threatening anaphylaxis.
Although the majority of severe allergic reactions are thought to be mediated via an IgE reaction, other immune globulins, such as IgG and IgA, may play a role in adverse reactions to food as well, presenting as food sensitivities rather than allergy.
These reactions can affect the immune system in different ways and can result in signs and symptoms ranging in severity from mild to life threatening anaphylaxis.
Although the majority of severe allergic reactions are thought to be mediated via an IgE reaction, other immune globulins, such as IgG and IgA, may play a role in adverse reactions to food as well, presenting as food sensitivities rather than allergy.
As seen in the report below IgE food reactions are immediate in onset and usually involve symptoms such as abdominal cramping, diarrhoea, skin rashes, hives, swelling, wheezing or the most extreme reaction, anaphylaxis.
IgG food reactions (also referred to as food sensitivity, food intolerance) are more subtle in their presentation, often occurring hours to days after exposure to food antigens.
IgG food reactions (also referred to as food sensitivity, food intolerance) are more subtle in their presentation, often occurring hours to days after exposure to food antigens.
- Unlike IgE food reactions, IgG food reactions produce symptoms which are cumulative in nature. So repeated exposure can lead to delayed food reactions may affect any organ or tissue in the body.
