There is still a lot of debate about the benefits, or the dangers, of pelleted/dry diets for tortoises. There really should not be. All you have to do is look at what has happened with other animals, and also with humans, to find the truth.
I have studied animal and human nutrition extensively for the last 25 years or more. There really can be no doubt about processed foods. Processed foods are harmful to all living creatures. Period. Rabbits are probably one of the best-studied animals when it comes to pelleted foods. At one time right after rabbit pellets were invented, commercially-raised rabbits were given almost nothing besides pellets. After a few years, it became evident that the rabbits were getting all kind of digestive problems and many died. When fresh, whole vegetables were added into the diet, the problems were greatly reduced. Now, it is a well-known fact that it is very risky to raise rabbits on pellets alone, and the ratio of pellets should be relatively small. The same thing happened, and is still happening with cows. Cows are true grazing animals, and when they are eating grasses and weeds in pastures, they are remarkably healthy, but when they are brought into corrals to fatten up with dry feed and grain before slaughter, they often become very, very sick and most would die of disease if they weren't slaughtered first. They are stuffed full of antibiotics and other medications just to keep them alive long enough to reach the slaughterhouse. Same with pigs, sheep, whatever.
I have raised birds and have known MANY breeders of birds for a long time. Almost all of us have all come to the conclusion that pelleted diets are the cause of many diseases in all kinds of birds, especially fatty liver disease. The higher the proportion of pellets in the diet, the more problems are seen. Iguanas fed on commercial "iguana food" fare no better, as I have seen personally more than a few times.
How many people keep up on the latest human nutrition studies? I consider myself more knowledgable than most on this subject. I have read hundreds of studies and reports on human nutrition. Many disagree with each other. Some say low carb is the only way to go, some say high carb, low protein, high protein, vegetarian and all points in between. There is really only ONE thing they ALL agree on. Processed foods are harmful to the point of virtually qualifying as a toxin. All junk food is processed food, and vice-versa. A human's, or an animal's, body has evolved over millions of years to digest and process natural foods, whether it is vegetables, fruits, meats, grasses, nuts or whatever. Each animal is uniquely designed to digest particular foods that it has evolved eating. Anything else is treated by the animal's body as a toxin and can disrupt digestion terribly. Even man-made vitamins are mostly passed right through in the urine. A tortoise was simply not made to digest soy, or any kind of bean, legume or grain like the kinds found in processed, pelleted tortoise "foods."
Did you know that dogs and cats never get cancer or any of the other degenerative diseases that these pets get so commonly if they are fed exclusively raw meat? Dogs get cancer in this country about as often as humans do, if not more. Cats get feline leukemia and all other kinds of health problems. The sled dogs in Alaska or the North Pole do not get these diseases because they are fed raw meat, just like they are adapted to. It's the canned or packaged dog food, which is cooked, that often makes them sick.
If a person thinks pelleted foods like Mazuri are good for tortoises, then the only question that remains is....."why would tortoises be the ONE animal that is different from all the other animals on the planet?" Does anyone reading this have some proof as to why and how they are?



Ed