Regression models for changes in carbohydrate intake and changes in body composition, fat mass, and insulin resistance in both groups combined. (A) Total carbohydrate intake and change in BMI: r = −0.36; p = 0.005; (B) Total carbohydrate intake and change in volume of visceral fat: r = −0.45; p < 0.001; (C) % carbohydrate intake from total energy and change in BMI: r = −0.53, p < 0.001; (D) % carbohydrate intake from total energy and change in fat mass: r = −0.55, p < 0.001; (E) % carbohydrate intake from total energy and change in volume of visceral fat: r = −0.35, p = 0.006; (F) % carbohydrate intake from total energy and change in HOMA: r = −0.27, p = 0.04; (G) Total fiber intake and change in BMI: r = −0.43, p < 0.001; (H) Total fiber intake and change in fat mass: r = −0.42; p < 0.001; (I) Total fiber intake and change in volume of visceral fat: r = −0.29; p = 0.003; (J) Intake of insoluble fiber and change in BMI: r = −0.46, p < 0.001; (K) Intake of insoluble fiber and change in fat mass: r = −0.46, p < 0.001; (L) Intake of insoluble fiber and change in volume of visceral fat: r = −0.32, p = 0.01.