Iguana care - Collard greens - Raw or cooked?

I have 2 iguanas and you do NOT need to cook the greens. You will end up cooking all of the water out of them, and if you have noticed iguanas do not exactly drink water out of a bowl. They might have a bit more nutrition after cooked but the water is vital to your animal. You can also give them other foods than just collard greens (which are cheap ya know). You can try mustard greens, dandelion greens, turnip greens, strawberries, apples, carrots, peas etc. but with the other veggies you gotta use a food processor to chop it up so it's not so hard for them to eat. They also make a vitamin spray that you can use on the food too. All of these things are cheap in price so use a variety in the diet and you can make your supply last longer....