Diabetes Care, Vol 16, Issue 1 4-7, Copyright © 1993 by American Diabetes Association
Effect of meal frequency on blood glucose, insulin, and free fatty acids in NIDDM subjects
J Bertelsen, C Christiansen, C Thomsen, PL Poulsen, S Vestergaard, A Steinov, LH Rasmussen, O Rasmussen and K Hermansen
OBJECTIVE--We studied the effects of meal frequency on blood glucose, serum
insulin, and FFAs in 12 NIDDM subjects. RESEARCH DESIGN AND
METHODS--Subjects were assigned in random order to two 8-hr observation
periods after an overnight fast. They received isocaloric diets with
similar composition either as six small or as two large meals. At the end
of each study period, an IVGTT was given. RESULTS--Two large meals induced
an 84% greater maximum amplitude of glucose excursions than six small meals
(6.1 +/- 0.5 vs. 3.3 +/- 0.5 mM, P < 0.005) and higher insulin responses
(P < 0.03). The Kg response to an IVGTT did not differ in the two
situations. The average FFA level was lowest in response to frequent meals
(P < 0.02). CONCLUSIONS--A higher meal frequency acutely subdues glucose
excursions and reduces insulin and FFA levels during the daytime in older
NIDDM subjects.