| Food Item | Rating | GI |
| Carrots, cooked | Low | 39 |
| Yam | Low | 39 |
| Sweet potato | Low | 54 |
| Potato, boiled | Medium | 56 |
| Potato, new | Medium | 57 |
| Potato, tinned | Medium | 61 |
| Beetroot | Medium | 64 |
| Potato, steamed | Medium | 64 |
| Potato, mashed | Medium | 70 |
| Chips | High | 75 |
| Potato, micro waved | High | 82 |
| Potato, instant | High | 83 |
| **Potato, baked | High | 85 |
| Parsnips | High | 97 |