No live food, but a very large salad every day
On paper, feeding a green iguana looks like the easiest job in the reptile room. Iguanas are herbivores: the daily meal is a generous bowl of chopped leafy greens and vegetables, offered after the morning bask. There are no crickets to keep, nothing frozen to defrost and no live prey at all. Staples are the dark, calcium-rich leaves: collard greens, mustard greens, turnip greens and dandelion, with squash, green beans and other vegetables mixed through, and everything chopped or shredded so a big lizard cannot pick out favorites and leave the rest.
The scale is what surprises people. A hatchling eats a modest handful; a fast-growing juvenile and then a large adult work through a bowl that would serve as a family side salad, every day, for a long life. The shopping, washing and chopping is a daily kitchen commitment, not a weekly one.
Calcium is where easy feeding quietly fails
The genuine difficulty is not effort but balance. An iguana's leafy diet has to deliver more calcium than phosphorus, or the body pulls calcium from its own bones to compensate, and over months that produces weak, rubbery bone and a jaw that loses its firm shape. Choosing the high-calcium staple greens above, rather than building the bowl around watery lettuces, is most of the answer, with calcium powder dusted on the food as routine backup.
This failure mode is silent. An iguana fed a poor rotation eats happily and looks full while its bones thin, so 'he eats well' is not evidence the diet is right. Getting the staple list correct from the first week, and not drifting into whatever greens happen to be in the fridge, is the real feeding skill this species asks for.
Foods that look kind and are not
Iguanas complicate feeding by loving what harms them. Fruit is sweet and eagerly taken, but it belongs as an occasional garnish, because a fruit-heavy bowl displaces the leaves the animal actually needs. Animal protein is the serious error: iguanas offered insects, egg or other protein may eat it, yet their kidneys are built for a plant diet, and protein-fed iguanas are at real risk of kidney damage over time.
Prepared foods sold for iguanas do not remove the need for fresh greens, and a bowl built on them alone rarely matches the fibre and calcium profile of the real thing. Treat anything convenient as a supplement to the daily chopped bowl, never the foundation of it.
Keeping the rotation going for years
The routine that works is a standing shopping list of staple greens, a rotation so no single leaf dominates the week, food offered after basking, uneaten food removed before it wilts in the heat, and fresh water always available, since many iguanas also soak and drink in a large bowl. Appetite dips during shedding or breeding season are normal and pass.
Because the bowl has to happen daily for decades, sharing the job safely matters, and KinsLe's Care Teams lets you record the staple greens and calcium days as assigned duties for your iguana, each marked complete with a timestamp.