| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Ananas comosus | Plant | -- | -- | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses | |
| Carica papaya | Plant | -- | -- | Jim Duke's personal files. | |
| Crataegus laevigata | Shoot | -- | -- | * | |
| Crataegus rhipidophylla | Shoot | -- | -- | * | |
| Hippophae rhamnoides | Bark | 3000.0 | 4000.0 | Abstract (See species file) | |
| Juglans nigra | Embryo | -- | -- | * | |
| Lycopersicon esculentum | Fruit | -- | -- | * | |
| Momordica charantia | Fruit | -- | -- | * | |
| Mucuna pruriens | Seed | -- | -- | * | |
| Murraya sp | Fruit | -- | -- | * | |
| Musa x paradisiaca | Fruit | -- | -- | Rizk, A.F.M. and Al-Nowaihi, A.S., The Phytochemistry of the Horticultural Plants of Qatar, Scientific and Applied Research Centre, University of Qatar. | |
| Musa x paradisiaca | Plant | -- | -- | Stitt, Paul. Why George should eat broccoli. | |
| Pisum sativum | Leaf | -- | -- | * | |
| Prosopis juliflora | Plant | -- | -- | * | |
| Solanum tuberosum | Leaf | -- | 2.0 | * | |
| Solanum tuberosum | Fruit | -- | 7.5 | * | |
| Solanum melongena | Fruit | -- | -- | * | |
| Urtica dioica | Leaf | -- | -- | Jim Duke's personal files. | |
| Urtica dioica | Plant | -- | -- | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |