Análisis comparativo de la respuesta e índice glicémico, carga glicémica y saciedad de leche alta en proteínas y leche sin lactosa en sujetos sanos

Abstract

Objective: To determine the effect of consumption of 3 types of cow’s milk (lactose free, high in protein, and standard) on glycemic load (GL), glycemic response (GR) and glycemic index (GI) and the level of satiety in healthy adults. Methodology: Eleven healthy subjects participated. The methodology proposed by the ISO 26642 standard was applied to determine GI. Capillary blood sample was obtained at 0, 30, 45, 60, 90 and 120 minutes. The level of hunger, satiety and fullness were evaluated using a visual analog scale (VAS). Statistical analysis was done using the Friedman, Wilcoxon test, adjusted by Bonferroni or repeated measures ANOVA. Statistical significance was set as p<0.05. Results: The GI obtained from high protein (GI= 39.2) and standard milk was low (GI= 45.7), while lactose-free milk had a high GI (GI= 81.2) (p= 0.021). The GR of lactose-free milk (107 ± 16 mg/dL) at 30 minutes was higher than standard milk 95±10 mg / dL (p= 0.012). There were no differences in satiety levels (p>0.05). Conclusion: Although lactose-free milk had a high GI, it did not affect satiety. On the other hand, high protein and standard milk have a low GI.