"Mountain Dew" was originally Southern and/or Scots/Irish slang for moonshine (i.e., homemade whiskey).
Using it as the name for the soda was originally suggested by Carl E. meeting in Toledo, Ohio, and was first trademarked by Ally and Barney Hartman in the 1940s.
While some studies have shown that among children (with and without ADHD) tartrazine can increase ADHD-like symptoms (see Stevens, Kuczek, Burgess, Hurt & Arnold, 2010), Amp Energy is an energy drink distributed by Pepsi Co under the Mountain Dew brand.
Launched in 2001, Amp was originally known as "Mountain Dew AMP." From 2007 to 2008, several additional flavors of Amp were introduced.
Mountain Dew (stylized as Mtn Dew) is a carbonated soft drink brand produced and owned by Pepsi Co.