Dietary Restriction and Illness

Diet elimination studies typically use small groups suffering from the health issue under investigate, with a control time period or group, and a time period or group under the influence of on a restricted diet, typically for a period of 2-8 weeks.

Migraines
A small study employed phases with diets where any foods that patient had IgG positivity for were eliminated, and another where they were deliberately increased.  these foods varied between patients but commonly included seafood and cheese, and for some patients included eggs, milk and meat.  Diet was shown to effect migraine frequency ( Alpay et al, 2010).

Asthma
A small study of asthmatic children in the United Kingdom gives some credence to the idea that a milk and egg-free diet can improve their symptom. Thirteen experimental and nine control children were studies over an 8 week period and the children on a restricted diet showed improvements in IgC antibodies, and in some cases lung function and overall health as self-reported and confirmed by a pediatrician.

References:

• Alpay K, Ertas, M, Orhan E, Ustay DK, Lieners C, Baykan B. (2010) Cephalalgia, 30, 829-837.
• Yusoff, N.A.M., Hampton, S.M., Dickerson, J.W.T., Morgan, J.B. (2004). The effects of exclusions of dietary egg and milk in the management of asthmatic children: a pilot study. The Journal of the Royal Society for the Promotion of Health, 124, 74-80.