Jennison Grigsby and her son visit the US every year. He's surprised by the differences between Spain and the US.Courtesy of Jennison GrigsbyJennison Grigsby is an American mom living in SpainShe regularly visits the US with her 8-year-old son, Luca.He's surprised by how much junk food and sugary breakfast options there are in the US.This as-told-to essay is based on a conversation with Jennison Grigsby, an American mom and yoga teacher who lives in Valencia, Spain.