INS and Insulin resistance: Moreover, the daily consumption of yacon syrup (with 0.14 g of FOSs/kg of body weight/day), for a longer period of 120 days, led to a significant reduction in fasting insulin levels (12.6 ± 1.7 to 7.3 ± 2.4 mUI/mL, p < 0.05) and HOMA index (6.30 ± 1.10 to 2.07 ± 0.91, p < 0.05), suggesting an improvement in insulin resistance in obese women [21].