Table 9. Direct infusion mass spectrometry serum miscellaneous/tricarboxylic acid cycle metabolites (μM) from 14 lean (L-MAINT) and 16 obese (O-MAINT) cats during weight maintenance and during 10-week energy restriction (O-RESTRICT).

Metabolite (μM)	L-MAINT (n = 14)	O-MAINT (n = 16)	O-RESTRICT (n = 16)	P-Value
				L-MAINT: O-MAINT	L-MAINT: O-RESTRICT	O-MAINT: O-RESTRICT
Hexose	5661.50 (4026.00–9003.00) AB	5376.00 (4440.00–10896.00) A	6354.00 (4690.00–10890.00) B	0.98	0.11	0.03
Citrate	20.69 ± 1.63 AB	21.30 ± 1.96 A	17.37 ± 1.31 B	0.82	0.11	0.04

Normally distributed data expressed as means ± SE

Non-normally distributed data expressed as median + range

Capital letters (A, B) denote significant differences between groups with different letters where a p-value <0.05 is considered significant