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Daily body weight (mean ± SEM) of rats receiving standard and FBZ-supplemented diets. Diet had no effect on mean body weight on any day. The vertical line after day 6 represents the point at which the diet of 2 of the 4 groups was switched to the type of food that was not previously provided (FBZ to standard or standard to FBZ). The other 2 groups were maintained on the same diet, either FBZ-supplemented or standard, throughout the experiment.
