What do iguanas eat?

Iguanas are herbivores, meaning they primarily eat plants. Based on the search results, here are the key points about an iguana's diet:

Plant-Based Diet

  • Iguanas are folivores, meaning they mainly eat leaves, along with some fruits and flowers1.
  • Their diet should consist of 80-90% dark leafy greens like collard greens, mustard greens, kale, dandelion greens, etc. 1
  • Vegetables like squash, bell peppers, broccoli can make up 30-40% of their diet1.
  • Fruits like bananas, mangoes, berries should be less than 20% of their diet as treats1.


  • Calcium and vitamin supplements are recommended, which can be sprinkled on their food
  • Young iguanas may need a small portion (up to 5%) of legumes like lentils or beans1.

Foods to Avoid

  • Iguanas should not eat any animal-based proteins or insects15.
  • Avoid nutrient-deficient vegetables like iceberg lettuce and celery1.
  • Kale, spinach, and cabbage should be fed in moderation due to compounds that can interfere with calcium absorption15.
The search results provide detailed guidance on creating a balanced, plant-based diet for pet iguanas, emphasizing dark leafy greens, vegetables, and limited fruits, while avoiding animal proteins and certain vegetables in excess. 1
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