If I only eat grapes for one whole week and only drink water and milk will I get skinnier?

Anonymous
I want to get slimmer. I was just wondering if only eating fruit for one whole week and drinking water will make a difference? In a good way of course...

I want to diet but I wouldn't know what to eat...
If I only eat grapes for one whole week and only drink water and milk will I get skinnier?
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