| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Senna obtusifolia | Seed | -- | 21300.0 | * | |
| Aloe vera | Leaf | -- | 20607.0 | * | |
| Allium sativum var. sativum | Bulb | -- | 2300.0 | * | |
| Phoenix dactylifera | Fruit | 650.0 | 870.0 | 1.1 | * |
| Citrus sinensis | Fruit | 30.0 | 630.0 | 0.2 | * |
| Ribes nigrum | Fruit Juice | -- | 290.0 | * | |
| Ananas comosus | Fruit | -- | 256.0 | -1.3 | * |
| Malus domestica | Plant | -- | 20.0 | * | |
| Salvia officinalis | Plant | -- | -- | * | |
| Angelica archangelica | Leaf | -- | -- | * | |
| Solanum tuberosum | Plant | -- | -- | * | |
| Passiflora incarnata | Fruit | -- | -- | Jim Duke's personal files. | |
| Cryptotaenia japonica | Root | -- | -- | * | |
| Lycium chinense | Leaf | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Daucus carota | Root | -- | -- | * | |
| Camellia sinensis | Leaf | -- | -- | * | |
| Prunus cerasus | Fruit | -- | -- | * | |
| Paeonia officinalis | Root | -- | -- | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses | |
| Fragaria spp | Plant | -- | -- | * | |
| Artemisia dracunculus | Shoot | -- | -- | * |