ACE-High contains high levels of vitamins A, C and E. This provides the higher levels of these vitamins required by certain groups. Large lizards and chelonia in particular are known to require extra vitamin A. "Runny nose syndrome" in chelonia responds in some cases to supplementation with A, C and E. The classic terrapin problem of swollen eyes and pneumonia is a manifestation of vitamin A deficiency. Poor hatchability in chelonia (and other) eggs is thought to be linked with vitamin A and/or E deficiency.