| Diet | wt% |
| Casein | 20.7 |
| Starch | 46.8 |
| Sucrose | 21.0 |
| Cellulose | 1.8 |
| Oila | 5.0 |
| Vitamin (AIN-93 mix)b | 0.9 |
| Minerals (AIN-93 mix)c | 3.7 |
| D, L-cystine | 0.1 |
| Butyl hydroxytoluene | 0.0001 |