A lipid metabolism disorder that is characterized by impaired mitochondrial oxidation of long chain fatty acids in the liver and kidneys resulting in episodes of illness- or fasting-induced hypoketotic hypoglycemia, and has_material_basis_in autosomal recessive inheritance of homozygous or compound heterozygous mutation in the carnitine palmitoyltransferase 1A gene (CPT1A) on chromosome 11q13.