| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Ficus carica | Fruit | -- | -- | * | |
| Foeniculum vulgare | Seed | -- | -- | * | |
| Foeniculum vulgare | Fruit | -- | -- | * | |
| Ginkgo biloba | Leaf | -- | -- | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. | |
| Glechoma hederacea | Plant | -- | -- | * | |
| Glycine max | Shoot | -- | -- | * | |
| Glycine max | Leaf | -- | -- | * | |
| Glycyrrhiza uralensis | Leaf | -- | 21.0 | -0.4 | * |
| Glycyrrhiza glabra | Plant | -- | -- | Stitt, Paul. Why George should eat broccoli. | |
| Gossypium sp | Flower | -- | -- | * | |
| Hamamelis virginiana | Leaf | -- | -- | * | |
| Hedera helix | Stem | -- | -- | * | |
| Houttuynia cordata | Leaf | -- | -- | * | |
| Houttuynia cordata | Plant | -- | -- | Chemical Constituents of Oriental Herbs (3 diff. books) | |
| Houttuynia cordata | Shoot | -- | 700.0 | 1.4 | * |
| Humulus lupulus | Fruit | -- | -- | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses | |
| Hypericum perforatum | Flower | -- | -- | * | |
| Hypericum perforatum | Plant | -- | 3000.0 | 1.0 | * |
| Ipomoea batatas | Root | -- | -- | * | |
| Juniperus communis | Fruit | -- | -- | * |