Feeding Green Iguanas: The Plant-Based Diet They Actually Need
Strict Herbivores — No Exceptions
Green iguanas are strict herbivores. Their digestive system is designed to ferment plant matter, not process animal protein. Feeding protein to a green iguana causes cumulative kidney damage that leads to early death.
Staple Greens
- Collard greens — excellent calcium-to-phosphorus ratio
- Mustard greens — nutritionally solid, usually eaten readily
- Dandelion greens — high in calcium and vitamins
- Endive and escarole — good calcium content
- Turnip greens — nutritious addition to the rotation
What to Absolutely Avoid
Spinach contains oxalates that bind calcium — never as a staple. Animal protein in any form — dog food, cat food, cooked chicken, insects — causes direct kidney damage. There is no safe amount to offer regularly. Calcium powder should be dusted on food at every single feeding.
