Gagliardi graduated Manhasset High School in 1992 where he was an All-American lacrosse player and All-County football player. After high school he attended college at University of Virginia before transferring to Johns Hopkins University in Baltimore Doctor of Medicine.
He now lives in New York City. In June 2010 he sold his company Maverik Lacrosse to New York City private equity company Kohlberg & Company Kohlberg & Company also owns Bauer Hockey and 16 other companies.
At Johns Hopkins, Gagliardi earned All-America honors twice, once as a third team in 1996 as a junior, and in 1997 as a senior as a first team All-American.
In 2005 John was inducted into the Manhasset Lacrosse Hall of Fame. In 2012 John was inducted into the Long Island Lacrosse Hall of Fame.
Gagliardi played professional Indoor Lacrosse for the New York Saints and Philadelphia Wings of the National Lacrosse League between 1998 and 2001. In 1999, he was selected to the United States Lacrosse team, winning the Lacrosse World Cup that year while starting on Defense.
In 2001, Gagliardi joined the Long Island Lizards, and was a Major League Lacrosse All Star from 2000-2007.
John was also on the United States National Men"s Lacrosse Team in 2006 where he earned All-World Honors on Defense in London, Ontario. He is one of six original founders of Blue Buffalo Pet Foods. He is actively invested in several consumer goods brands.
On May 2nd, 2014 John Gagliardi launched Titan Tea in New York City.
Titan Tea is a functional cold brewed tea with electrolytes and Ribose and is low in calories. Titan Tea is sold in healthy "better for you" natural stores in New York City and the Hampton"son
He was a member of the Long Island Lizards of Major League Lacrosse before retiring in 2009. He is a founding member of the lacrosse equipment & apparel company Maverik Lacrosse & Number Limit Lacrosse Camps.
