An appetite for eating chalk falls under the banner called
maybe u have pica
Well, there is a disorder called Pica, which results in the uncontrollable desire to eat non-food substances, such as chalk or dirt, Pica is commonly caused by a mineral deficiency, but you should see a doctor about this chalk ingestion issue, as it could be more serious.
They make edible chalk
you cannot.
Kidney stones are caused by too much calcium. The kidneys cannot get rid of it, so it builds up. Eating chalk could contribute, but probably not be the main reason for the stones. Some people are prone to getting stones.
If your fat, you probably cannot stop eating junk food
Most certainly.
chalk is to stop yourself from slipping or loosing grip
Yes it's dangerous and stupid and you should never do it Eating of chalk can be dangerous. Consider this; The the chemicals used in manufacturing of chalk is not edible. Any thing considered non-edible may be dangerous so why not eat food instead of chalk.
Yes eating a chalk can make u fat and can increase ur body weight
No, chalk is not known to cause cancer.
Yes, it is bad.