Fast Metabolism
| Rank | Effect | Flavor |
| 1 | Nutrition cost of all actions +1 | You have a fast metabolism. |
| 2 | Nutrition cost of all actions +2 | You have a very fast metabolism. |
| 3 | Nutrition cost of all actions +3 | Your metabolism is lightning-fast. |
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Species notes: Trolls start at rank 3 (and also have a further, species-specific hunger cost). | ||