Approximately 37% of today’s health-minded consumers are concerned about immunity, according to the 2007 HealthFocus Trend Report. The Internet is filled with immune-boosting promises in support of both health and profit. It is well established that undernutrition contributes to increased incidence of infection, decreased nutrient absorption, and elevated morbidity and mortality (Scrimshaw, 2003). On the other side of health, there are numerous acute and chronic diseases that, in part, may be th…

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