| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Magnolia officinalis | Plant | -- | -- | * | |
| Prunus laurocerasus | Plant | -- | -- | * | |
| Phaseolus vulgaris | Shoot | -- | -- | * | |
| Phaseolus vulgaris | Leaf | -- | -- | * | |
| Phaseolus vulgaris | Fruit | -- | -- | * | |
| Castanea sativa | Leaf | -- | -- | * | |
| Perilla frutescens | Plant | -- | -- | J.S. Glasby Dict.Pls Containing 2ndary Metabolite. 1991. | |
| Peucedanum ostruthium | Root | -- | -- | * | |
| Moringa oleifera | Leaf | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Adonis vernalis | Plant | -- | -- | * | |
| Cyamopsis tetragonoloba | Seed | -- | -- | Kaushal, G. P., Bhatia, I. S. 1982. A Study of Polyphenols in the Seeds and Leaves of Guar (Cyamopsis tetragonoloba L. Taub). J Sci Food Agr, 33: 461-470. | |
| Pisum sativum | Plant | -- | -- | * | |
| Avena sativa | Plant | -- | -- | Stitt, Paul. Why George should eat broccoli. | |
| Cichorium endivia | Leaf | -- | -- | * | |
| Crataegus laevigata | Leaf | -- | -- | * | |
| Erythroxylum coca | Leaf | -- | -- | * | |
| Urtica dioica | Leaf | -- | -- | Jim Duke's personal files. | |
| Vicia faba | Plant | -- | -- | * | |
| Daucus carota | Root | -- | -- | * | |
| Berberis vulgaris | Fruit | -- | -- | Jim Duke's personal files. |