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| Chemical Name | Dosage | Reference |
|---|---|---|
| ADENOSINE | not available | Duke, 1992 * |
| CALCIUM | not available | Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp. |
| GABA | not available | Duke, 1992 * |
| GAMMA-AMINO-BETA-HYDROXYBUTYRIC-ACID | not available | Pakistan Encyclopedia Planta Medica. 1986. |
| GASTRODIN | not available | Duke, 1992 * |
| MAGNESIUM | not available | Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp. |
| MELATONIN | 0.1-10 mg/man | Duke, 1992 * |
| TRYPTOPHAN | 1-3 g/day | Werbach, M. 1993. Healing with Food. Harper Collins, New York, 443 pp. |
| VALERIC-ACID | 1.2-2.4 | Duke, 1992 * |
| ZINC | not available | Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp. |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Rauvolfia serpentina | Indian Snakeroot; Serpentine Wood | 1 | 13, 800 |
| Rehmannia glutinosa | Chinese Foxglove | 4 | 33, 354 |
| Rheum palmatum | Chinese Rhubarb | 3 | 14, 970 |
| Rheum rhabarbarum | Rhubarb | 3 | 34, 883 |
| Rhizophora mangle | Red Mangrove | 3 | 22, 343 |
| Rhodymenia palmata | Dulse | 3 | 12, 289 |
| Rhus copallina | Dwarf Sumac; Winged Sumac | 3 | 120, 808 |
| Rhus glabra | Smooth Sumac | 3 | 29, 688 |
| Rhynchosia minima | Burn Mouth Vine | 1 | 19, 200 |
| Ribes nigrum | Black Currant | 3 | 6, 461 |
| Ribes rubrum | Red Currant; White Currant | 3 | 7, 652 |
| Ribes uva-crispa | Gooseberry | 3 | 5, 076 |
| Ricinus communis | Castorbean | 1 | 26, 700 |
| Rivea corymbosa | Snakeplant | 1 | 0 |
| Robinia pseudoacacia | Black Locust | 1 | 34, 000 |
| Rollinia mucosa | Biriba; Lancewood | 1 | 2, 100 |
| Rosa canina | Rose; Dogbrier; Dog Rose | 3 | 28, 470 |
| Rosa laevigata | Cherokee Rose | 3 | 10, 465 |
| Rosmarinus officinalis | Rosemary | 4 | 23, 114 |
| Rubia cordifolia | Madder | 3 | 39, 709 |