Human food for chinchillas??

Hi I am a very new chinchilla owner and I am very confused. I found all kinds of information on line that seems to be wrong. Here everyone says don't give your chinchillas any human food? On line I found stuff like this:
Fresh Vegetables and Fruits
In moderation, fresh vegetables and fruits can be healthful and occasional chinchilla treats -- though no more than 10 percent of his diet. Consider giving treats between two and four times weekly, for example. Some...

Human food for chinchillas??