Wendy's Frosty's is a beloved treat — and a new addition to the lineup will combine the familiar frozen dairy dessert with a beloved Girl Scout cookie. Frosty's have been a staple of the Wendy's menu since the late 1960s when founder Dave Thomas decided to add a frozen treat to it.

Lab analysis of 25 Girl Scout cookies found trace amounts of five toxic metals and an herbicide, two consumer groups said. Are they safe to eat?

A child would need to eat 9,000 cookies in a day to approach harmful levels of pesticide or naturally occurring heavy metals.