McDonald's promised not to add surcharges for items that include eggs amid a nationwide surcharge that has led some other restaurants to charge more.

Denny’s, the popular American diner chain, has reportedly joined a growing number of restaurants responding to the nationwide egg shortage by adding a temporary surcharge to its egg-based meals at some locations.

Denny’s said in a statement it is a fluid situation that leaves individual markets and restaurants responsible for deciding the surcharge price. Waffle House added a surcharge earlier this