阅读理解
(2018·辽宁重点高中联考)
Those who claim bananas are fattening argue that bananas cause the body to make lots of insulin(胰岛素), and insulin causes fat growth.
How much insulin we produce is related to how fast food becomes sugar in our bloodstream. How can you know if food makes a lot of sugar quickly? The glycemic index(血糖指数), or GI rating tells us. Foods with GI scores above 75 are considered highGI foods, leading to faster sugar development. Bananas have a GI of 62, which is considered low.
Weight loss can be a struggle for anyone, but it is especially hard for diabetics(糖尿病患者). A study looked at how the starch from unripe bananas affected the weight of a group of obese diabetics. After four weeks of a diet high in bananas, diabetics lost significantly more weight than on a control diet. They also saw improvements in insulin sensitivity from the banana diet.
