Data are densitometry units normalized to average control diet protein expressions (set to 1) as well as IgA expression.

<p>White bars represent protein expression measured while the experimental animals were consuming the control diet (average of the final 5 days; depicted by white bars labelled “C”), and grey bars represent expression of the same protein while the experimental animals were consuming the 3% tannic acid diet. The line graphs represent the same protein densitometry measures for animals that were maintained on the control diet for the entire course of the study. *Significant within-subject difference between protein expression on the control and experimental diets (p<0.05, bonferoni corrected for multiple comparisons).