Check for at least one entity in a certain area

So, lets say for example I want to check for at least one entity with regeneration in an area of 6 blocks, I tried using the "for each entity iterator..." block but in the case of multiple entities, if one of them doesnt have the potion effect, it will return false even if theres an entity that meets the requirement, is there any way to solve this using what is currently in MCreator?