INS and Insulin resistance: Several studies have measured changes in insulin resistance status after SSFR using different tests, such as measuring fasting glucose, fasting insulin, and the Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) [31, 34, 41], insulin tolerance test (ITT) [42], oral glucose tolerance test [30, 43], and the gold standard glucose clamp test [29, 44].