| ammonia → CapableOf → build up to toxic levels | 0.33 | |
| vitamin → CapableOf → build up to toxic levels | 0.22 | |
| amino acid → CapableOf → build up to toxic levels | 0.18 | |
| nitrate → CapableOf → build up to toxic levels | 0.16 | |
| vitamin d → CapableOf → build up to toxic levels | 0.16 |