| Foodstuffs | Frequency of consumption (%) | ||
| Never used | Rarely consumed | Frequently consumed | |
| Liver | 29.0 | 66.1 | 4.8 |
| Fatty fish | 20.2 | 69.4 | 10.5 |
| Egg | 12.1 | 43.5 | 44.4 |
| Fenugreek | 71.8 | 23.4 | 4.8 |
| White beans | 13.7 | 83.9 | 2.4 |
| Lentils | 15.3 | 71.8 | 12.9 |
| Pois chiche | 16.9 | 46.8 | 36.3 |
| Pearsley | 5.6 | 50.0 | 44.4 |
| Spinach | 23.4 | 71.0 | 5.6 |
| Barley | 15.3 | 71.0 | 13.7 |
| Cocoa | 20.2 | 44.4 | 35.5 |
| Corn | 46.8 | 41.9 | 11.3 |