FIGURE 1.

Plasma levels of glucose, insulin, C‐peptide, glucagon, GIP and GLP‐1 before and during 300 min after dinner ingestion when breakfast and lunch or only breakfast had been ingested before the dinner on the same day in 12 healthy male volunteers. Means ± SEM are shown. Asterisks show the probability level of random difference between the two tests as obtained by paired Student's t test. *P < .05, **P < .01