Postprandial Glycemic Impact of Diabetes-Friendly High Protein Bars

The rising prevalence of type 2 diabetes mellitus (T2DM) in Malaysia underscores the need for effective dietary strategies to manage postprandial glycemic control. This randomized, open-label, crossover study evaluated the glycemic responses and potential functional benefits of two novel protein bars; ActiSport Acti L2S Fitness Bar and Metabolic Sauver DGI Protein Bar, formulated to support glycemic management and fitness. Fourteen healthy adults consumed each test sample alongside a glucose reference, with blood glucose measured at multiple intervals over 120 minutes. Both protein bars elicited significantly lower incremental area under the curve (iAUC) and glycemic index (GI) values compared to the glucose control, classifying them as low-GI foods (Acti L2S: GI = 14.5 ± 10.0; DGI: GI = 29.7 ± 11.5). The Acti L2S bar’s superior glycemic modulation is attributed to lower carbohydrate content, higher dietary fiber, and the inclusion of plant extracts (Garcinia cambogia, white kidney bean, African mango) known for appetite regulation and fat metabolism. The DGI bar provided balanced macronutrients conducive to stable blood glucose and sustained energy release. These findings support the use of both protein bars as functional snacks for postprandial glycemic management, with Acti L2S offering additional slimming benefits. Incorporation of such low-GI, nutrient-dense products may aid individuals with diabetes or metabolic risk in achieving improved glycemic control and metabolic health.