How long could you survive without going to the grocery store?

If the worst should happen and the grocery stores were closed or the shelves were empty. How long could you survive and what would be the first item you would run out of?
One day
One week
Two weeks
One month
Wouldn’t bother me how long it would be
Select gender and age to cast your vote:
Updates
+1 y
I am sorry girls! Didn’t realize that now two MHO’s is the limit. Thought you could pick more than one for guys and girls!
After reading the MHO instructions, I should be able to do so. But I can’t for whatever reason.
How long could you survive without going to the grocery store?
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