Table 1. Glucose consumption averaged per neuron.

Whole brain
Species	Brain mass*	Glucose use per gram§(µmol/g.min)	Total glucose use (µmol/min)	Nbrain	Glucose use per neuron(µmol/min)	O/N	N/mg
mouse	0.416	0.89	0.370	70.89×106	5.20×10−9	0.533	170,408
rat	1.802	0.68	1.225	200.13×106	6.10×10−9	0.657	111,060
squirrel	5.548	0.60	3.329	472.44×106	7.05×10−9	1.083	85,155
monkey	87.346	0.36	31.444	6.38×109	4.93×10−9	1.122	73,043
baboon	148.80	0.44	65.472	10.91×109	6.00×10−9	0.828	73,320
human	1508.91	0.31	467.762	86.06×109	5.44×10−9	0.983	57,034
variation	3627×	2.9×	1264×	1213×	1.4×	2.1×	3.0×

*Our data: references 23–27. Cortical mass refers to both hemispheres, including the hippocampal formation, and excludes subcortical white matter in primates.

^§From [20] (references therein).