Answer:
It's like food but water kills it. What is it?
I bubble and laugh and spit water in your face. I am no lady, and I don't wear lace.
What contains zero calories, but if you consume it, you will probably gain weight?
It is an arctic double breasted formal wear.
Who spends the day at the window, goes to the table for meals. And hides at night?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.