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Figure legends

Fig.1: Design of rat feeding experiments

Fig.2: Effect of growth media iron concentration on yield of yeast cells (A), iron PT

accumulation in cells (B) and leavening ability (C). Data represents the average of triplicate samples and the standard error is indicated by the error bars.

Fig.3: Feed efficiency (A) , iron bioavailability (B), catalase activity in plasma (C) and RI

kidney tissue (D), and iron concentrations in liver (E) and spleen (F) of each group of rats. Data represents the mean of 8 rats and the standard error is indicated by the error bars . SC

Fig.4

(A) Liver sections stained with H&E from each sample group. Red arrows indicate U

abnormalities in the tissue. AN (B) Heart sections stained with H&E from each sample groups. Red arrows indicate abnormalities in the tissue.

(C) Kidney sections stained with H&E from each sample group. In each instance no major M

differences were observed.

(D) Spleen sections stained with Prussian blue from each sample group. Red arrows indicate D

abnormalities in the tissue. TE C EP ACCEPTED MANUSCRIPT Tables