GRAPE • Glycemic Response of Amylopectin Containing Drinks

Glycemic Response of Amylopectin Containing Drinks

To quantify the glycemic index of the SP energy-smart-based nutrition supplement and the SP Glucose-support formula as compared to a glucose drink. We hypothesized that both the energy-smart-based nutritional supplement and the SP Glucose-support formula will have low glycemic index.

The aim of the study is to quantify the glycemic index of the SP energy-smart-based nutrition supplement and the SP Glucose-support formula as compared to a glucose drink. We hypothesized that both the energy-smart-based nutritional supplement and the SP Glucose-support formula will have low glycemic index.

Subjects: 9 non-diabetic (HbA1c < 6.5) males aged 30-55 years with body mass indices ranging from 27.5 to 35 kg∙m-2. Individuals with impaired glucose tolerance will be included as long as they are not diagnosed with diabetes and their HbA1c is less than 6.5.

Preliminary Testing: Medical history, weight, height, body composition via dual x-ray absorptiometry (DXA) and glycosylated hemoglobin (HbA1c) measurement.

Protocol: After a 10-hour overnight fast, subjects will complete 3 experimental visits in which they will ingest one of three beverages in a randomized order. During experimental visits subjects will either be given the following 3 experimental drinks:

• Full SP-glucose balance formula (200 kcal)
• Energy smart carbohydrate blend (50 g, 200 kcal)
• Liquid dextrose solution in the form of TRUTOL ® Glucose Tolerance Test Beverage (50 g, 200 kcal)

Inclusion Criteria:

• BMI 27.5 to 35 kg∙m-2

Exclusion Criteria:

• Diagnosed diabetes
• HbA1c > 6.5
• competitive athletes
• body weigh change > 3kg during last month