| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Citrus paradisi | Fruit | -- | -- | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses | |
| Citrus sinensis | Fruit Juice | -- | -- | Jim Duke's personal files. | |
| Citrus sinensis | Fruit | -- | -- | Jim Duke's personal files. |