| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Lycopersicon esculentum | Fruit | 7.0 | 143.0 | 1.1 | * |
| Malus domestica | Fruit | 2.0 | 37.0 | -0.6 | * |
| Medicago sativa | Leaf | -- | -- | * | |
| Medicago sativa | Plant | 26.0 | 257.0 | 1.0 | * |
| Mentha x piperita | Plant | -- | -- | * | |
| Mentha x piperita | Leaf | -- | -- | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. | |
| Moringa oleifera | Seed | -- | -- | * | |
| Musa x paradisiaca | Hull Husk | -- | 30.0 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. | |
| Oenothera biennis | Seed | 11.0 | 100.0 | -0.4 | * |
| Olea europaea | Oil | -- | 119.0 | -0.5 | * |
| Origanum vulgare | Leaf | -- | -- | * | |
| Oryza sativa | Seed | -- | -- | * | |
| Persea americana | Fruit | 13.0 | 49.0 | -0.4 | USDA's Ag Handbook 8 and sequelae) |
| Petroselinum crispum | Leaf | 36.0 | 252.0 | -0.3 | * |
| Phaseolus vulgaris | Leaf | 698.0 | 719.0 | 1.3 | Jim Duke's personal files.* |
| Phaseolus vulgaris | Fruit | 0.2 | 14.0 | -0.9 | * |
| Pimpinella anisum | Tissue Culture | -- | -- | * | |
| Pimpinella anisum | Leaf | -- | -- | * | |
| Pimpinella anisum | Root | -- | -- | * | |
| Piper nigrum | Resin, Exudate, Sap | -- | 1000.0 | * |