Comparison of the Glycemic Impact of Popular Snack Bars in the Chilean Market

The rising popularity of snacks has increased concerns for metabolic health because many of these products—often marketed as healthy—are packed with carbohydrates that cause rapid blood sugar spikes followed by sharp drops. This cycle can lead to unstable energy levels and unhealthy eating habits. Here, we analyzed the glycemic response to the NotProtein® snack bar (NPSB), a plant-based protein bar formulated with isomaltulose, and compared it to two of the top-selling snack bars in Chile, a cereal-based snack (CBS), and animal-based protein bar (ABPS). Ten healthy adults participated in the study, and their blood sugar levels were monitored after consuming portions standardized to contain 25 g of available carbohydrates. The findings showed that the NPSB had the most favorable glycemic response, with the lowest glycemic load (4.4). Accordingly, the NPSB had a slower glucose absorption rate and faster clearance, promoting a more stable and sustained blood sugar response. The observed benefits can be attributed to the unique formulation of NPSB, which combines isomaltulose with higher levels of protein and fiber. This study underscores the potential of scientifically crafted snacks to improve metabolic health, offering a promising solution for those seeking balanced energy and better nutritional options in their daily diets.