Oral glucose tolerance test (OGTT) measurements performed after 12 weeks of intervention. All values are means ± SE. Grazing milk from grazing cows (n=20). Conventional milk from conventionally fed cows (n=18). Glucose tolerance was measured using a standard 75 g oral glucose-tolerance test. There was no significant difference between areas under the curve (AUC). There was no significant difference in the time course of glucose and C-peptide concentration after the two different test fats or in the mean glucose and C-peptide concentration according to the repeated-measures analysis of variance.