What Do Iguanas Eat? Wild, Captive, and Florida Diets

As an Amazon Associate, Lizardist earns from qualifying purchases. Some product links on this page are affiliate links.

What do iguanas eat? Green iguanas are almost entirely plant eaters as adults. They feed on leaves, shoots, flowers, and ripe fruit.

Wild juveniles take some insects during their first years, but veterinary guidance now says a pet iguana needs no animal protein at any age.

This guide covers wild iguanas, pet iguanas, and the invasive iguanas now common across South Florida. Each group eats a version of the same plant based diet. It also covers what animals eat iguanas and whether people eat iguana meat.

What Do Iguanas Eat in the Wild?

In their native range across Central and South America, green iguanas feed mainly on foliage, flowers, and fruit. They spend most of their lives in the forest canopy. Ripe fruit and new leaf growth make up the bulk of an adult’s calories.

Hatchlings and juveniles take some insects and other small prey alongside plants. University of Florida biologists note that wild iguanas will occasionally eat insects, lizards, nestling birds, and eggs, and that juveniles eat more insects than adults. Even then, plants make up almost all of the diet.

Hatchlings also eat the droppings of adult iguanas. That habit seeds their gut with the bacteria needed to ferment leaves. Without those microbes a young iguana cannot digest its plant diet properly.

Wild iguanas are opportunistic browsers, not picky eaters. They move through the canopy sampling whatever leaves, buds, and fruit are in season. Then they bask in the sun to digest the meal.

This canopy lifestyle is central to the green iguana habitat the species needs, in the wild and in captivity.

What Do Florida Iguanas Eat?

Green iguanas are not native to Florida. A large population now lives wild across the southern part of the state after pet trade escapes and releases.

What do Florida iguanas eat? Mostly the same plants as their native counterparts, plus whatever grows nearby.

Iguanas in Florida commonly eat landscape plants such as hibiscus, orchids, impatiens, pentas, roses, and bougainvillea. They also raid vegetable gardens for leafy greens. Squash, melons, and turf grass are common targets too.

Dooryard fruit is also at risk when it ripens within reach, including berries, figs, mangos, tomatoes, bananas, and lychees. University of Florida IFAS reports that iguanas do not eat citrus, and that oleander, milkweed, crotons, and other tough or toxic plants are resistant.

This selective feeding is part of why Florida’s wildlife agency lists iguanas as a nonnative, invasive species. Wild iguanas also burrow into seawalls, berms, canal banks, and building foundations. That damage has nothing to do with diet, but it adds to the case against them.

Landowners in Florida may humanely kill iguanas on their own property year round without a permit. The public can also remove iguanas from certain state managed lands under an executive order. Captured animals cannot be relocated elsewhere in the state.

What Do Pet Iguanas Eat?

A pet green iguana should eat a diet built almost entirely from dark leafy greens and vegetables. VCA Animal Hospitals puts dark leafy greens at 80 to 90 percent of the total diet. Calcium rich greens should be 40 to 50 percent of an adult’s food, with other vegetables making up another 30 to 40 percent.

Good staple greens include collard greens, mustard greens, turnip greens, dandelion greens, bok choy, and escarole, chopped and offered daily. Squash, bell pepper, green beans, and cactus pad round out the plate. Chop everything to bite size so the iguana cannot pick out favorites.

Fruit is where authorities differ. LafeberVet caps it at no more than 5 percent of the diet, while VCA allows up to 20 percent. Keep it near the lower figure, since iguanas will pick out sweet fruit and skip greens if given the chance.

How often to feed an iguana

Juveniles eat every day. Adults eat daily or every other day, and an overweight adult can drop to every second or third day. Both VCA and LafeberVet agree on this schedule.

Dust food with a phosphorus free calcium powder, such as Zoo Med Repti Calcium without D3, at every feeding for juveniles, and one to two times a week for adults. A reptile multivitamin goes on twice weekly for juveniles and about twice a month for adults. Fresh water should always be available, and a shallow soaking tub helps hydration.

Do young iguanas need insects or animal protein?

Older references say yes. Cornell’s poisonous plants database still lists 10 to 15 percent animal protein for juveniles and 5 percent for adults over two and a half years. VCA allows up to 10 percent for juveniles and under 5 percent for adults.

LafeberVet takes the opposite view. Its client handout states that green iguanas are plant eaters from birth, and that high protein diets are linked to kidney disease in adults. It advises against insects, trout chow, monkey biscuits, and dog food at every age.

The safe reading of that disagreement is simple. A pet iguana on a proper greens diet grows normally with no animal protein at all. Adding it brings a known risk of gout and kidney damage for no proven benefit.

Feeding portions should scale up as an iguana grows. See our guide to green iguana size and growth for what to expect, and how diet quality affects green iguana lifespan over time. For enclosure size, lighting, and full daily care, see our complete green iguana care guide.

Foods to Limit or Avoid

Some common vegetables are only safe in small, occasional amounts. Spinach, romaine lettuce, celery, Swiss chard, kale, broccoli, cauliflower, and brussels sprouts contain oxalic acid or goitrogens. These compounds reduce calcium absorption when fed too often.

Offer these foods no more than once every week or two, not daily. Rhubarb should never be fed at all. Its extremely high oxalic acid content can form calcium oxalate crystals capable of killing even a large iguana.

Over time, a diet too high in oxalates can also cause toxic buildup in the kidneys. Animal protein deserves the same caution in adult iguanas. Feeding meat, eggs, or insects regularly to an adult can push protein too high.

Too much protein contributes to visceral gout, a painful disease caused by urate crystals building up in body tissue. Cornell notes that once visceral gout is present it is usually fatal. Iceberg lettuce and celery are not toxic but are mostly water and should not be fed either.

What Animals Eat Iguanas?

Iguanas face predators at every life stage. Eggs and hatchlings are the most vulnerable. In their native range, birds of prey, snakes, and nest raiding mammals take eggs and small juveniles.

Adult iguanas have fewer natural predators. Their size, sharp claws, and whip like tail help them fend off many threats. Large raptors, wild cats, and crocodilians can still take an adult given the chance.

In Florida, alligators, large hawks, and domestic dogs are the predators most likely to catch a stray iguana. An iguana’s main defense is simply escape. It can drop into water, climb fast, or bite and scratch if cornered.

It can also drop part of its tail if a predator gets a grip. The tail regrows within about a year. See our page on green iguana bites for more on how they defend themselves.

Can You Eat Iguana?

Yes, people do eat iguana. It has long been considered a delicacy throughout the species’ native range, particularly around Easter week in parts of Central America. Iguana meat and eggs are both eaten in these traditions.

Do people eat iguanas in Florida? Some hunters and home cooks there eat the invasive iguanas they remove from their own property. Iguana meat has also been sold in ethnic markets that serve Central and South American communities, though this remains a niche practice.

Cold snaps leave iguanas stunned and easy to collect, and Florida’s wildlife agency has issued specific guidance on handling cold stunned animals. Check the current rules before collecting any iguana, stunned or not.

Anyone eating iguana meat should treat it like raw chicken. Iguanas can carry Salmonella just as many reptiles do. University food safety guidance recommends cooking iguana meat to 165 degrees Fahrenheit, the same target used for whole chicken.

Follow the same clean, separate, cook, and chill routine used for any raw meat. Raw preparations such as ceviche are not recommended, since citrus acid alone may not kill every parasite or pathogen present. Most of the usable meat sits on the legs, spine, and tail, and cooks often blanch it in salted water before roasting or stewing it further.

Frequently Asked Questions

What do iguanas eat?

Green iguanas eat mostly leaves, flowers, and fruit as adults, and wild juveniles take a few insects. Pet iguanas need a diet that is 80 to 90 percent dark leafy greens and vegetables, with fruit kept to a small share and no animal protein.

Can you eat an iguana?

Yes, iguana meat is edible. It is eaten in parts of Central and South America and by some people in Florida. It should always be cooked thoroughly, since iguanas can carry Salmonella like many other reptiles.

Do people eat iguanas in Florida?

Some Florida residents do eat invasive green iguanas, especially ones removed from their own property. It remains a niche practice overall. The meat should be handled and cooked like raw chicken because of Salmonella risk.

What animals eat iguanas?

Eggs and young iguanas face the most predators, including birds of prey, snakes, and small mammals in their native range. Adults are eaten less often. Large raptors, wild cats, and Florida alligators can still take one.

What do iguanas eat in the wild versus in captivity?

Wild iguanas browse whatever leaves, flowers, and fruit their habitat offers, and hatchlings eat adult droppings to pick up gut bacteria. Pet iguanas rely on chopped greens and vegetables dusted with calcium, fed daily as juveniles and daily or every other day as adults.

Is a great iguana the same as a green iguana?

Great iguana is not a distinct species name. It most often refers to the green iguana, one of the largest lizards commonly kept as a pet. Adult green iguanas can grow to around six feet including the tail.