Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Category: fried food 
Words: croquet, dumpling, fritter, spend, patty
spend

Category: emotional status 
Words: fret, truss rod, emotional upsets, sad, worried
truss rod

Category: nutritional value 
Words: fiber, fat, sugars, protein, ugly

ugly