| # Activity | Chemical | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|---|
| 0 | ZIRCONIUM | Fruit | 0.5 | 1.1 | -0.5 | * |
| 77 | ZINC | Fruit | 0.9 | 13.0 | -0.52 | * |
| 0 | ZETA-CAROTENE-B | Pericarp | -- | -- | Jim Duke's personal files. | |
| 0 | ZETA-CAROTENE-A | Pericarp | -- | -- | Jim Duke's personal files. | |
| 0 | ZETA-CAROTENE | Fruit | -- | 2.0 | -1.0 | * |
| 5 | ZEAXANTHIN | Pericarp | -- | -- | Jim Duke's personal files. | |
| 5 | ZEAXANTHIN | Tissue Culture | -- | -- | Jim Duke's personal files. | |
| 5 | ZEAXANTHIN | Fruit | -- | 2.0 | -1.0 | * |
| 0 | XYLOSYL-VITEXIN | Leaf | -- | -- | Jim Duke's personal files. | |
| 3 | XYLOSE | Fruit | -- | -- | * | |
| 0 | XYLAN | Fruit | -- | -- | * | |
| 1 | XANTHYLETIN | Root Bark | -- | 45000.0 | Jim Duke's personal files. | |
| 1 | XANTHYLETIN | Root | -- | -- | Jim Duke's personal files. | |
| 1 | XANTHOXYLETIN | Root Bark | -- | 24000.0 | Jim Duke's personal files. | |
| 1 | XANTHOXYLETIN | Root | -- | -- | Jim Duke's personal files. | |
| 0 | WATER | Fruit | 839000.0 | 898000.0 | 0.55 | * |
| 0 | VITEXIN-XYLOSIDE | Fruit | -- | -- | Jim Duke's personal files. | |
| 0 | VIT-B-6 | Fruit | 1.0 | 5.0 | -0.54 | USDA's Ag Handbook 8 and sequelae) |
| 2 | VIOLAXANTHIN | Fruit | -- | -- | * | |
| 2 | VIOLAXANTHIN | Pericarp | -- | -- | Jim Duke's personal files. |