WASHINGTON TOWNSHIP, Mich. -

A Macomb County parent who sued because of her displeasure with a school ban on nuts has lost her case at the Michigan appeals court.
 
   Kathleen Liebau accused the Romeo school district of violating her daughter's rights after officials adopted a ban on nut products at Hevel Elementary School in 2010. The policy was in response to another student's life-threatening allergy.
 
   Liebau claimed the peanut ban deprived her daughter of her nutritional needs. The policy apparently was so controversial that some parents sent their kids to school with peanut products and appeared in the cafeteria to prevent enforcement.
 
   Liebau's lawsuit was dismissed by a Macomb County judge, and the state appeals court last week affirmed that decision.