Table 2. Comparison of human standard OGTT, refined porcine OGTT model and porcine mixed meal OGTT.

	Human OGTT	Refined porcine OGTT method	Traditional porcine mixed meal OGTT
Nutritional content	Glucose + water	Glucose + water	Glucose + feed (content varies between studies)
Time of glucose intake	Standardised, within 5 minutes	Standardised, within 5 minutes	Seldom reported, not standardised (?)
Intestinal glucose absorption		Similar to human OGTT	Attenuated due to fibre content of meal
Shape of glucose curves	Monophasic and biphasic described	Monophasic and biphasic described	Only monophasic described
Comparison between different studies	Easy due to standardised test	Easy due to standardised test	Difficult due to the use of different feed in different studies