A starch-rich treat affects enteroinsular responses in ponies.

The research study investigates how a starch-rich treat added to the daily diets of ponies alters their enteroinsular responses to eating. The findings show that such a treat can indeed cause measurable changes to those responses.

Methods and Subjects

• The researchers used 10 mixed-breed adult ponies owned by Queensland University of Technology.
• Among these ponies, six were metabolically healthy and four were insulin dysregulated, as determined by an in-feed oral glucose test.

Treatment

• The researchers offered a bread-based treat twice daily to the ponies for a duration of 10 days.
• This added an extra 0.36 ± 0.04 g/kg body weight (BW) of carbohydrates to their daily diet.

Tests and Measures

• Before and after the treatment, the team approximated the ponies’ intestinal capacity for simple carbohydrate absorption with a modified D-xylose absorption test.
• They measured the plasma glucagon-like peptide-2 (GLP-2), blood glucose, and serum insulin responses to eating before and after treatment.

Findings

• The absorption of D-xylose, gauged by the area under the curve (AUC), increased by 1.6-fold after the ponies ate the treat for 10 days.
• Even though basal (fasted) GLP-2 concentrations were not affected, the GLP-2 AUC increased 1.4-fold in response to eating.
• The blood glucose or serum insulin concentrations remained unchanged before, during, or after eating.

Conclusion

• The research concluded that even a small additional intake of carbohydrates each day, in the form of a treat, can bring about a measurable change in the ponies’ enteroinsular responses to eating.