| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Sambucus nigra | Hh | -- | -- | * | |
| Sambucus nigra | Plant | -- | -- | * | |
| Fucus vesiculosus | Plant | -- | -- | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. | |
| Citrus sinensis | Fruit | -- | -- | * | |
| Anastatica hierochuntica | Plant | -- | -- | * | |
| Coffea arabica | Seed | -- | -- | * | |
| Allium cepa | Seed | -- | -- | Kintia, P. K., Degtiaryova, L. P., Balashova, N. N., Shvets, S. A. 1987. Sterols and Steroidal Glycosides of Bulb Onion Seeds. Fecs. Int. Conf. Chem. Biotechol. Biol. Act. Nat. Prod., (Proc.) 3rd: 166-170. | |
| Sesamum indicum | Seed Oil | -- | -- | * | |
| Hibiscus sabdariffa | Seed | -- | -- | * | |
| Lycopodium clavatum | Plant | -- | -- | * | |
| Hylocereus undatus | Plant | -- | -- | * | |
| Cucurbita pepo | Plant | -- | -- | * | |
| Solanum nigrum | Plant | -- | -- | * | |
| Euphorbia hirta | Plant | -- | -- | * | |
| Citrus reticulata | Pericarp | -- | -- | * | |
| Citrus reticulata | Root | -- | -- | * | |
| Arachis hypogaea | Plant | -- | -- | * | |
| Curcuma longa | Rhizome | -- | -- | * | |
| Citrus paradisi | Fruit | -- | -- | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses | |
| Holarrhena pubescens | Tissue Culture | -- | -- | * |