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Line graph of changes in raw body weight over 4 weeks of the second experiment. Each group of mice (n = 5) was fed a diet with different protein concentration (3, 6, 9, and 12%). The mean and standard error of the mean (SEM) are shown. Plots indicated with the same letters (a, b and c) on the same days were not significantly different at P < 0.05 by Tukey–Kramer test.
