Plasma hormone levels immediately after (0 min) and 120 min after test meal in the middle of the dark period in both LEAN and OBESE groups – GLP-1 (a), PYY (c), glucose (e), insulin (g) and amylin (i). Plasma hormone levels immediately after (0 min) and 120 min after test meal in the middle of the light period in both LEAN and OBESE groups- GLP-1 (b), PYY (d), glucose (f), insulin (H) and amylin (j). Values are mean ± SEM. *p ≤ 0.05 OBESE compared with LEAN.GLP-1: glucagon-like peptide-1; PYY: peptide YY.