Regina
The sorghum used in Iams kitten food is grain sorghum, varieties include
milo, kafir and durra.  These have a low sugar content.  There are several
other types of sorghum, including some that are high in sugar, called
"sweet sorghums", and one called "broomcorn" has been used to make brooms.
 
Source of info http://encarta.msn.com/find/Concise.asp?ti=003C5000
 
The sorghum in Iams is a carbohydrate source, but as BobC points out,
carbohydrates are converted into sugar in the body.  Rice, the second
ingredient in Totally Ferret, is also a carbohydrate.
 
Iams claims that in dogs and cats, their carbohydrate blend of sorghum,
corn meal and corn grits is digested more evenly than rice, and results in
more constant blood sugar levels.  Noone knows if this is true for ferrets.
At least one vet has said online that he believes rice may be implicated in
ferret insulinomas.
 
What to do?  Beats me.  I eagerly await the rest of BobC's posts on this
topic.
 
Linda Iroff
Oberlin OH
[Posted in FML issue 3054]