FETA BAR ORANGE & FETA BAR STRAWBERRY
- Glycemic index evaluation: GI 5.18 (very low) (Nutrients 2014, 6(6), 2240-2250; doi:10.3390/nu6062240)
- The product contains a specific composition of carbohydrates and ewe-goat whey proteins (1/1) prepared using cheese industry by-products as a primary material, which reduces oxidative stress and promotes endothelial function (http://www.ncbi.nlm.nih.gov/pubmed/24705018)
Glycemic Response of a Carbohydrate-Protein Bar with Ewe-Goat Whey
The present study examined the glycemic index (GI) and glycemic load (GL) of a bio-functional food containing ewe-goat whey protein and carbohydrates in a 1:1.ratio. Nine healthy volunteers (age, 23.3 ± 3.9 years, body mass index 24.2 ± 4.1 kg m2, body fat%, 18.6 ± 10.0) were randomly assigned to consume either a placebo food or an isocaloric bio-functional food, in two visits. Seven blood samples were collected during each visit. The first sample was taken after overnight fasting and the other six 15, 30, 45, 60, 90 and 120 minutes after consumption of the food. The plasma glucose concentration was measured and the GI was determined by calculating the incremental area under the curve. The GL was measured using the equation: GI/100 g of available carbohydrates per tested food serving. The GI of the bio-functional food was found to be 5.18 ± 3.27, and the GL was 1.09 ± 0.68. These results indicate that the test product can be classified as having a low GI (<55) and a low GL (<10). Considering the health benefits of foods with low glycemic response and the consumption of whey protein, the tested food could potentially promote health beyond basic nutrition.