A reality TV star is doing what he can to fight childhood obesity.

Joe Ostaszewski competed on the Biggest Loser and wants to show kids how to stay healthy as he kicks off his Riding it Forward campaign.

Ostaszewski is riding across the country from Maryland to California and will teach kids about keeping fit and eating healthy.

The ride kicks off in Chevy Chase, Maryland on July 31st.

Listen below to the full interview with Joe Ostaszewski or click here for more information on Riding it Forward.