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Effect of Traditional and Commercial Yoghurt Consumption on Blood Glucose Levels in Young Adults S. Ajil , Anwar; M. Ali , Alyaa; J. Jaber , Hiba; S. Najem , Noor; F. Mzael , Noura; Marzouk, Alaa; Al-Salhi, Ahmed; Al-Shatty, Sabah
Health & Medical Sciences Vol. 2 No. 4 (2025): August
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/phms.v2i4.471

Abstract

This study aimed to evaluate traditionally fermented yoghurt in comparison with selected commercially imported brands in Iraq (Kalleh, Pegah, Ramak), focusing on their chemical, microbiological, and physiological characteristics. The analyses included qualitative detection of starch and lactose, pH measurement, enumeration of lactic acid bacteria, and assessment of postprandial glycemic responses in healthy young adults over four weeks. The findings demonstrated that commercial yoghurts contained residual starch and lactose, attributable to the addition of thickening agents and the incomplete utilisation of lactose resulting from the inactivation of viable bacteria by heat treatment or irradiation. In contrast, traditional fermented yoghurt was free of such residues and exhibited significantly higher counts of active bacteria, which contributed to a notable decrease in pH during storage. From a physiological perspective, consumption of traditional yoghurt was associated with the lowest glycemic response, with peak blood glucose reaching 110 mg/dL and returning rapidly to baseline levels (95–100( mg/dL. Conversely, commercial yoghurts produced higher glycemic peaks ranging from )130 – 138( mg/dL, reflecting their higher simple sugar content and variations in processing methods. Such pronounced glycemic elevations may place additional strain on pancreatic β-cells and, if consumed regularly, could increase the risk of insulin resistance.
Evaluation of Blood Glucose Response after Consumption of Food and Extracts from Field Crops in University Students Al-Mousawi, Hakeem; Hatim, Sajdeen; Albalawi, Sabaa; Almansarawi, Ali; Razzaq, Anfal; Al-Salhi, Ahmed
Health & Medical Sciences Vol. 3 No. 1 (2025): November
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/phms.v3i1.529

Abstract

This study examined the glycemic response of healthy university students after consuming rice, bulgur, and extracts of fenugreek, cinnamon, and coriander. Blood glucose was measured at seven time points: baseline (0 minutes) and at 20, 40, 60, 80, 100, and 120 minutes. The research was conducted on five groups of students, each receiving one of the test foods or extracts in standardized amounts (300 g of rice or bulgur and 300 ml of each extract). At the same time, all participants remained seated and inactive during monitoring to ensure controlled experimental conditions. The findings showed distinct differences among the tested substances, reflecting their varying nutritional and metabolic characteristics. Rice produced the most significant rise in blood glucose, especially between 20 and 40 minutes, consistent with its high glycemic index and rapid starch digestion. Bulgur demonstrated a slower, more moderate increase, with glucose levels rising gradually and then declining steadily from minute 80, due to its fiber content and coarse grain structure, which slows absorption. The plant extracts showed markedly lower responses than the starchy foods. Fenugreek extract produced the lowest rise, maintaining minimal changes over 120 minutes due to its viscous fibers and insulin-enhancing compounds. Cinnamon extract generated a moderate peak and approached baseline values between 100 and 120 minutes, while coriander extract showed a low, stable response with no sharp increases. Overall, the results demonstrate that the type of consumed substance strongly shapes postprandial glycemic behavior, with whole grains and plant extracts promoting a more stable and less pronounced response than refined starchy foods.