I'm doing a health crossword puzzle and the word is 8 letters long. the hint is: an important dietary guideline for americans is to eat a diet that is i need !

well when looking at this if you think about it   negativley and positivley   react with each other and when the first layer gets full they add layers it starts with 2 on the first layer and it constantly goes on until the official number is there

again, you should probably take him to the vet. goodluck