| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Stachys officinalis | Shoot | -- | -- | * | |
| Lentinus edodes | Fruit | -- | -- | * | |
| Angelica sinensis | Root | -- | -- | Jim Duke's personal files. | |
| Oryza sativa | Plant | -- | -- | * | |
| Coriandrum sativum | Fruit | -- | -- | * | |
| Camellia sinensis | Leaf | -- | -- | * | |
| Plantago ovata | Seed | -- | -- | * | |
| Cocos nucifera | Endosperm | -- | -- | Jim Duke's personal files. | |
| Cocos nucifera | Leaf | -- | -- | Jim Duke's personal files. | |
| Alpinia galanga | Leaf | -- | -- | * | |
| Prunus cerasus | Fruit | -- | -- | * | |
| Crocus sativus | Bulb | -- | -- | * | |
| Pinellia ternata | Tuber | -- | -- | * | |
| Citrus paradisi | Fruit | -- | -- | * | |
| Artemisia dracunculus | Root | -- | -- | * | |
| Thymus vulgaris | Plant | -- | -- | Stitt, Paul. Why George should eat broccoli. | |
| Artemisia dracunculus | Shoot | -- | -- | * | |
| Borago officinalis | Leaf | -- | -- | Jim Duke's personal files. | |
| Scutellaria baicalensis | Root | -- | -- | * | |
| Zingiber officinale | Shoot | -- | -- | * |