does it make you hungry and eat more, or does it just slow down your metabolism of what you regularly eat?

no sand eating becomes so habit forming.

I'm not sure but all i know is that i managed to lose about 5 lbs in a week after starting it

For many people, it simply makes them HUNGRY. It can also make a person feel more lethargic, hence it may add to the weight gain by inhibiting exercise at the same time as increasing appetite. This can be useful in people who are very active, agitated, and have little appetite to begin with.

This side-effect does not happen to everyone.