Food Allergy
The concept of immune responses to food antigens is useful in understanding
many diseases. Many of the major unsolved disease of our civilization are either
degenerative and/or inflammatory and many are recognized to be inflammatory,
immune-mediated, hypersensitivity diseases. In this book, a general theory of
hypersensitivity disease as a continuum of disease-causing mechanisms is
presented. The term "hypersensitivity" refers to immune-mediated processes that
lead to disease. As we consider the possible role of food antigens in causing or
contributing to immune-mediated diseases, we look for opportunities to help
patients with simple and safe therapeutic strategies such as diet revision. The
basic phenomena that concern us are:
- Food antigens activate immune networks.
- Activated immune networks produce symptoms
- Long-term activation of immune networks causes chronic disease, often featuring
inflammation in target organs.
- The food supply is the most abundant and continuous source of antigenic
material.
Rheumatic diseases, autoimmune diseases, multiple sclerosis,
insulin-dependent diabetes, thyroiditis, psoriasis are examples of
hypersensitivity diseases that involve humoral and cell-mediated immunity. The
common specific problems that are related to food allergy include asthma,
rhinitis, atopic dermatitis, urticaria, anaphylaxis, angioedema, allergic
gastroenteropathy, and allergic arthritis.
Many patients will express several of these hypersensitivity phenomena over a
lifetime and demonstrate an underlying tendency to be hypersensitive. An
important concern is the possibility that the chemical soup created by our
civilization drives increasing numbers of individuals into hypersensitivity
illness. The advocates of a broad definition of food allergy run the risk of
being evangelical.
The conviction that food allergy is a ubiquitous cause of disease comes from
knowing the benefits of careful diet revision in medical practice. In response
to allergy lobby groups in the USA, the US Congress passed a bill that requires
notice on the labels of foodstuffs that contain eight of the most common food
allergens. The Food Allergen Labeling and Consumer Protection Act, will require
plain English labeling beginning in 2006 of products containing wheat, milk,
soy, peanuts, tree nuts, fish, shellfish, or eggs. The bill also requires the
Food and Drug Administration to develop a definition of the term "gluten-free"
to help those with celiac disease and who require a gluten free diet for other
reasons.
Rovner J. Reuters Health Information, Jul 21, 2004. Reported by Medscape
online; http://www.medscape.com/viewarticle/483914_print