The diet of Maroon-fronted Parrot is composed primarily of the seeds of Pinus species, including P. arizonica, P. gregii, P. teocote, P. montezumae, P. cembroides, P. strobiformis, and P. culminicola, as well as seeds of Abies sp. and Quercus sp. (Ely 1962, Lanning and Lawson 1981). Seeds of pines are not produced consistently by any given species from year to year; the search for patches of food accounts for the nomadic dispersal of Maroon-fronted Parrot outside the breeding season (Lanning and Lawson 1981, Enkerlin-Hoeflich et al. 1999). These parrots also consume nectar, flowers, and fruits of agava (Agave gentry and A. macroculnis) (Ely 1962, Juniper and Parr 1998, Ortiz-Maciel et al. 2010).
Geophagy has been documented in Maroon-fronted Parrots (Valés-Peña et al. 2008). Unlike many parrots, Maroon-fronted Parrots rely on and come to water sources such as waterfalls to drink on a daily basis (Enkerlin-Hoeflich et al. 2006). See Behavior.