Answer:
What contains zero calories, but if you consume it, you will probably gain weight?
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat. And your heart grow cold. I visit the weak, but seldom the bold.
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
A hill full, a hole full, yet you cannot catch a bowl full.
The more of them you take, the more you leave behind. What are they?
I have two eyes in the front and a lot of eyes on my tail
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?