| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Murraya sp | Fruit | 1080.0 | 3110.0 | -0.9 | * |
| Musa x paradisiaca | Fruit | 1080.0 | 3110.0 | -0.9 | USDA's Ag Handbook 8 and sequelae) |
| Nasturtium officinale | Herb | 1870.0 | 37400.0 | 1.0 | USDA's Ag Handbook 8 and sequelae) |
| Nelumbo nucifera | Seed | 5050.0 | 15303.0 | -0.6 | * |
| Nelumbo nucifera | Rhizome | 3690.0 | 17655.0 | 1.0 | * |
| Nigella sativa | Seed | 10670.0 | 13650.0 | -0.8 | * |
| Ocimum basilicum | Leaf | -- | 16960.0 | -0.6 | USDA's Ag Handbook 8 and sequelae) |
| Oenothera biennis | Seed | 11800.0 | 12593.0 | -0.9 | * |
| Opuntia ficus-indica | Seed | -- | 15900.0 | -0.6 | Laferriere, J.E., 1988, Nutricomp Program, Nutricomp Database; reviewed in J. Ethnobiology 9(1):27-29. |
| Opuntia ficus-indica | Bud | -- | 8315.0 | Laferriere, J.E., 1988, Nutricomp Program, Nutricomp Database; reviewed in J. Ethnobiology 9(1):27-29. | |
| Oryza sativa | Hay | -- | -- | * | |
| Pachyrhizus erosus | Tuber | 3870.0 | 35670.0 | 0.7 | * |
| Panax ginseng | Root | -- | -- | * | |
| Panax quinquefolius | Plant | 1265.0 | 4310.0 | -1.4 | * |
| Panax ginseng | Leaf | -- | -- | * | |
| Papaver bracteatum | Seed | 17000.0 | 20350.0 | -0.2 | * |
| Papaver somniferum | Seed | 22020.0 | 23622.0 | 0.1 | * |
| Perideridia gairdneri | Root | -- | 7556.0 | -0.3 | Izadoost, M. & Robinson, T., Synergism & antagonism in the pharmacology of alkaloidal plants, pp 137-58 in Craker, L. & Simon, J., eds., Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture & Pharmacology, v. 2, 1987, 255pp. |
| Persea americana | Fruit | 2270.0 | 11000.0 | 0.1 | * |
| Phaseolus vulgaris | Seed | 26130.0 | 29366.0 | 0.6 | USDA's Ag Handbook 8 and sequelae) |