The amount of a sodium-coupled monocarboxylate transporter 1 (human) when measured in cerebrospinal fluid. The trait is level of sodium-coupled monocarboxylate transporter 1 (human) in cerebrospinal fluid (Ontology of Biological Attributes id OBA_2059827). Also known as: cerebrospinal fluid sodium-coupled monocarboxylate transporter 1 (human) amount.