| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Artemisia dracunculus | Leaf | -- | -- | * | |
| Allium ampeloprasum | Plant | -- | -- | * | |
| Ribes nigrum | Fruit Juice | -- | 60.0 | * | |
| Valeriana officinalis | Rhizome | -- | -- | * | |
| Santalum album | Fruit | -- | -- | * | |
| Camellia sinensis | Leaf | -- | -- | * | |
| Zingiber officinale | Shoot | -- | -- | * | |
| Zingiber officinale | Tuber | -- | -- | * | |
| Tilia sp. | Flower | -- | -- | * | |
| Apium graveolens | Shoot | -- | -- | * | |
| Cryptotaenia japonica | Root | -- | -- | * | |
| Cryptotaenia japonica | Shoot | -- | -- | * | |
| Aesculus hippocastanum | Leaf | -- | -- | Jim Duke's personal files. | |
| Trifolium pratense | Plant | -- | -- | * | |
| Angelica sinensis | Root | -- | -- | Jim Duke's personal files. | |
| Lentinus edodes | Fruit | -- | -- | * | |
| Salvia officinalis | Plant | -- | -- | Stitt, Paul. Why George should eat broccoli. | |
| Glycine max | Shoot | -- | -- | * | |
| Melia azedarach | Seed | -- | -- | * | |
| Alpinia galanga | Leaf | -- | -- | * |