| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Trifolium pratense | Plant | -- | -- | * | |
| Panax ginseng | Leaf | -- | -- | * | |
| Cryptotaenia japonica | Root | -- | -- | * | |
| Stachys officinalis | Shoot | -- | -- | * | |
| Angelica sinensis | Root | -- | -- | Jim Duke's personal files. | |
| Melia azedarach | Seed | -- | -- | * | |
| Lentinus edodes | Fruit | -- | -- | * | |
| Glycine max | Shoot | -- | -- | * | |
| Anastatica hierochuntica | Plant | -- | -- | * | |
| Medicago sativa | Plant | -- | -- | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. | |
| Albizia lebbeck | Seed | -- | -- | Wealth of India. | |
| Coriandrum sativum | Leaf | -- | -- | * | |
| Oryza sativa | Plant | -- | -- | * | |
| Alpinia galanga | Leaf | -- | -- | * | |
| Coffea arabica | Seed | -- | -- | * | |
| Cocos nucifera | Endosperm | -- | -- | Jim Duke's personal files. | |
| Cocos nucifera | Leaf | -- | -- | Jim Duke's personal files. | |
| Crocus sativus | Bulb | -- | -- | * | |
| Capsella bursa-pastoris | Plant | -- | -- | * | |
| Trigonella foenum-graecum | Leaf | -- | -- | * |