An American pastor is begging people not to eat Girl Scout cookies because he says the group promotes "lesbianism."

"I don't want to support lesbianism, I don't want to support Planned Parenthood and I don't want to support abortion, and if that be the case, I'm not buying Girl Scout cookies," Kevin Swanson, a Colorado pastor who runs Generations Radio, said in an online broadcast posted to the website RightWingWatch.org.

"Please, I beg of you, do not buy Girl Scout cookies," he added.

Swanson is not the first to attack the cookies, which include varieties such as Dulce de Leche, Thank U Berry Munch, lemon-flavoured Savannah Smiles and thin mints.

Earlier this year the Family Research Council called on people not to buy the cookies because the group says Girl Scouts have a relationship with Planned Parenthood. The Girl Scouts deny there is any relationship or partnership.