Anyone fail the 1hr glucose test but pass the 3rd

Any advice on what to eat or what not to eat the day before the 3 hour one ? 
I failed the 1 hr but passed the 3 hr one my first pregnancy and now my 2nd pregnancy I once again failed the 1 hr but passed the 3 hr one. I'm a bit worried :/ but hopefully I pass the 3 hr one once again 

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