| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Echinacea spp | Root | -- | 843.0 | -0.2 | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. |
| Echinacea spp | Leaf | -- | 2140.0 | -0.2 | Economic & Medicinal Plant Research, 5: 253. |
| Elaeagnus umbellatus | Fruit | 10.0 | 57.0 | -0.3 | * |
| Elaeagnus commutata | Fruit | 100.0 | 725.0 | -0.2 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Elaeagnus angustifolia | Fruit | 40.0 | 500.0 | -0.3 | * |
| Elaeis guineensis | Fruit | 120.0 | 163.0 | -0.3 | * |
| Eleocharis dulcis | Tuber | 40.0 | 317.0 | -0.7 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Eleutherococcus senticosus | Root | 42.0 | 200.0 | -0.5 | * |
| Ephedra sinica | Plant | 151.0 | 721.0 | -0.4 | * |
| Equisetum arvense | Plant | 45.0 | 208.0 | -0.5 | * |
| Eriobotrya japonica | Fruit | 10.0 | 840.0 | -0.2 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Eriodictyon californicum | Leaf | 0.4 | 1.7 | -0.4 | * |
| Eryngium floridanum | Shoot | -- | 1958.0 | -0.3 | * |
| Erythrina fusca | Leaf | 30.0 | 780.0 | -0.4 | * |
| Erythrina berteroana | Shoot | 370.0 | 2340.0 | -0.3 | * |
| Erythroxylum coca | Leaf | 14.0 | 15.0 | -0.4 | * |
| Eugenia floribunda | Fruit | 230.0 | 1785.0 | -0.2 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Eugenia uniflora | Fruit | 140.0 | 2115.0 | -0.2 | * |
| Eugenia brasiliensis | Fruit | 188.0 | 1290.0 | -0.2 | * |
| Eupatorium perfoliatum | Plant | -- | -- | * |