Yeah, Carlton said not to use spinach as it inhibits calcium absorption, which can ultimately lead to metabolic bone disease.
There are "commercial" gutloaders from Flukers but when I found giant pieces of corn in one bottle, I stopped using it. (WHY would a CHAMELEON need its feeders to eat corn? When and how and why would a chameleon ever eat corn....??)
Check this out though. From another post and pretty much the end all be all of gutloading:
Apples -fine in moderation, so long as you dont include the seeds
Oranges, pineapple are fine in moderation - dont include the peel and dont use too many acidic things too often
Kiwi - somewhat high in oxalates - limit
Pears - okay in moderation
Grapes - high in sugar, moderate
Banana - high in phosphorous, but okay now and then
Mango - higher in phosphorous than calicum, okay now and then -but do not include the peel which is has high amounts of oxalic acid
Peach -high in goitrogens, especially the peel, inhibits iodine - limit
Celery - contains some oxalic acid but fine in moderation
Cucumber - ok
Carrots - fine in moderation
Beets - Oaxalic Acid/Goitrogens - limit
Fennel - bulb and leaves okay in moderation, seeds good in moderation
Kale - okay in limited quantities - moderately high in oxalic acid and potentially goitrogenic
Broccoli & Cauliflower & Spinach - limit - oxalic acid and goitrogens
Parsley- high Oxalic Acid - limit
Basil - good in moderation
Onions, Garlic - high in sulfur and oxalates - limit
Aloe Vera - ok
you might find these links useful:
https://www.chameleonforums.com/blogs...utloading.html
https://www.chameleonforums.com/blogs...l-information/
https://www.chameleonforums.com/blogs...utloading.html
Not good regular gutload choices: Rhubarb, Parsley, Cassava, Spinach, Chard, Beet leaves , Radish, Collards, leek, Beans, Brussels sprouts, onion, chives and Garlic, ice burge head lettuce, most Leaf Lettuce, egg plant, Watercress, Broccoli, Kale, cabbage, bok choy, Soy/edamame, figs, animal fat, meat, dairy, avacado, bran/wheat, mushrooms, anything significantly higher in phosphorous than calicum, anything high in phytates, Oxilates, Goitrogens...
https://www.chameleonforums.com/gutloading-whats-bad-101630/