Weighing 12,190 pounds, the bar was produced by World's Finest Chocolate and certified by the Guinness World Records as the World's Largest Chocolate Bar Sept. 13 in Chicago.
The bar is a replica of the World's Finest famous "dollar bar" and is 4 feet wide, 3 feet high and 21 feet long.
The giant chocolate bar visited Gehlen as part of the World's Finest Chocolate's "Think Big, Eat Smart!" tour.
"The message was about having big dreams but achieving them in small ways," said Gehlen Development Director Lisa Niebuhr. "They talked about doing everything in moderation."
According to information from World's Finest Chocolate, a provider of chocolate fundraising products, the tour is taking an upbeat message of portion control and healthy lifestyles to schools across the nation.
According to Eddie Opler, chief executive officer of World's Finest Chocolate, the tour aims to grab children's attention with the big chocolate bar and then teach them about eating the right foods in the right amounts.
"The tour is great because it emphasizes that we can treat ourselves occasionally and still maintain an active, healthy lifestyle," Niebuhr said.