I tried to find Dr. Cox and his research, etc. too....no luck.
I was debating whether to comment on what was said or not....its difficult since most of it I can't find any information on that supports what Kian posted...but here goes anyhow...comments anyone??
Kian said..."we never consider the fact that fat is the activator of our hormones that control our moods"...fat is also important for vitamin A and D absorption. However, in spite of fat being needed, it is often the case that some animals, people and even insects can live longer lives when the diet is low in fat (not depleted of fat...just low). This for people at least, might be due to the fact that by limiting fat, you lower cholesterol....so it may not just be the fact that the diet is low in fat that the longevity occurs.
http://www.worldhealth.net/p/low-fat-low-protein-diet-boosts-longevity-2005-06-02.html
You said..."good animal keeping does not always mean transferring human values to animals. It goes without saying that animals, especially lizards, are in many ways different in their nutritional needs from humans"...many things that are true for people are true for animals...but certainly not all. Guinea pigs need vitamin C...they are missing an enzyme that is necessary for the body to make Vitamin C. Man, primates (apes, chimps, etc.) and guinea pigs have lost the ability to make it. Nocturnal creatures get no UVB so the vitamin D3 that they produce must come either from eating something that has vitamin D3 in it or from producing their own. However, "we" all (all creatures) have a lot of similar needs..."we" need calcium for strong bones, and vitamins and other minerals to allow our bodies to function in the way that they should.
You said..."In nature we have observed chameleons eating small birds in the nest and insects with high levels of fat in large quantities; we have even seen a pregnant T.C. Melleri dig into the earth and eat fat larvae"...there is no doubt in my mind that chameleons (and other lizards/creatures) have a much different diet in the wild than we can/do provide for them in captivity. Its one of the reasons we have difficulty feeding them in captivity in such a way to meet their nutritional needs.
You said..."The results of a study lasting 6 years by Dr. Cox and colleagues from Bologna and Rimini universities, have proved that the chameleon stores fat in its cheeks, chin and a part of the helm as a jelly substance: this jelly substance is not common fat cells as in humans and mammals but similar to the fat in camels"...can't find any references to this on the net. I am aware that chameleons store fat in various areas though.
You said..."The chameleon uses the chemical ficin which could be deadly in large quantities for humans. This toxin in chameleons digests and kills some parasites in the digestive flora and even keeps the growth of filarial (which is quite often found in chameleons in nature) under control"......the chameleon is not the only creature that uses plants and even soils to help with their well-being...
Geophagy (soil eating)...veileds have often been caught eating soils...
http://geography.about.com/cs/culturalgeography/a/geophagy.htm
http://www.duke.edu/~djb4/Colpa to Parrot Biology no figures.htm
Not only do creatures eat things that can control parasites, satisfying other needs can lead to getting parasites..
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9692137&dopt=Citation
Geophagy also serves another purpose for some...protection against plant toxins...
http://www.uic.edu/classes/osci/osci590/8_2DirtasFood.htm
Eating leaves....and other unusual (to us, anyway) remedies...
http://nationalzoo.si.edu/Publications/ZooGoer/1998/1/reallywildremedies.cfm
http://www.ars-grin.gov/duke/syllabus/module8.htm
You said..."I guess anyone extensively feeding their chameleon veggies with high vitamin C content have experienced diarrhoea in the animal! "...I have fed my crickets with many veggies and greens that are high in vitamin C and I also feed many of my other reptiles greens and veggies and have had no cases of diarrhea in any of them. Of course, I have not done a study concerning the necessity or what vitamin C does to any of them...nor can I find any references on the net or elsewhere indicating what you said about the vitamin C. I can say that I have not had a sick reptile for a long time now...and most of the deaths have been in old agers or in recent WC imports (which would not likely have been from the diet I provided anyway)...so all I can assume is that what I have been doing to keep them is in some way good.
You said..."The fat is assimilated with cholesterin (cholesterin is used in soaps to bind fat and non-fat substances) and not cholesterol as in mammals, which is why the extra fat in chameleons is similar to the fat camels have to store water for the normal functioning of their vital organs, enabling their survival in arid environments – quite logically, every creature living there has survived because it has been able to adapt to the hostile environment demands and successfully live there for millions of years. The other interesting fact about cholesterin is that when animals accumulate too much fat or the fat is not needed its starts excreting the “bad” fat (there are products for lowering cholesterol with cholesterin for humans)"....while I can find some references to cholesterin...I can't find enough information on what you said to comment on it.
You said..."Of course, we know that a lizard’s metabolism, especially a chameleon’s metabolism is not similar to a human’s. So it is not at all bad to feed a chameleon regularly (once or twice a month) with pinkies or fat larva if the chameleon has no liver disease and enough space to move"...what does having space to move have to do with it? Vitamins A and D3 are fat soluble....it makes me wonder what too much fat in the diet will do concerning them. Comments?
You said..."with regard to feeding juvenile chameleons with Zophobas Morio or mealworms, these two have a large quantity of fibres that stops them assimilating nutritious elements from their food and tends to stunt the growth of the animal, although they have never proven to be deadly or to make the animal weak"...I thought some fiber was good in a diet. Fiber is known to be indigestible and contain no nutrients, but is helps to move the food through the digestive tract and absorbs moisture making it bulkier and easier to move along...so it helps prevent constipation...so I don't understand how it would prevent growth or cause an animal to be weak unless it was getting nothing/little but fiber. Please explain.
You said..."We know of course that chameleon flora is different from human flora (there are different bacteria in the chameleon’s digestive system) and vitamin C (L-ascorbic acid) kills some of these bacteria in the chameleon’s digestive system, but it is the opposite case with the iguana, which needs vitamin C, although the iguana is a strictly herbivorous animal"...I would be interested in reading more about this as well. In bearded dragons it takes very high doses of vitamin C to cause diarrhea so what is the difference in veiled chameleons?