Modified TestDiet® AIN-76A Semi-Purified Diet, 58B0, with 58% energy from fat and corn starch as the primary carbohydrate. Dyed purple. Originally manufactured as "D12330". One of four diets in the Surwit Series.
| Hydrogenated Coconut Oil | 33.3467 |
| Casein - Vitamin Tested | 22.7977 |
| Corn Starch | 17.4582 |
| Maltodextrin | 16.9983 |
| AIN-76A Mineral Mix | 3.9996 |
| Soybean Oil | 2.4997 |
| Sodium Bicarbonate | 1.0499 |
| AIN-76A Vitamin Mix | 0.9999 |
| Potassium Citrate, Tribasic Monohydrate | 0.4000 |
| DL-Methionine | 0.2000 |
| Choline Bitartrate | 0.2000 |
| Purple (FD&C Red No. 40 and FD&C Blue No. 2) | 0.0500 |