| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Momordica charantia | Seed Essent. Oil | -- | -- | Jim Duke's personal files. | |
| Cucumis sativus | Fruit | -- | -- | * | |
| Artemisia dracunculus | Plant | -- | -- | Stitt, Paul. Why George should eat broccoli. | |
| Cocos nucifera | Seed | -- | -- | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. | |
| Panax ginseng | Seed Oil | -- | -- | * | |
| Humulus lupulus | Plant | -- | -- | * |