Substituting Starch for Lentils May Help Manage Blood Glucose
High blood glucose levels over a long period of time can lead to health problems, including type 2 diabetes. A recent study suggests that replacing half a serving of potatoes or rice with lentils may help lower blood glucose levels by more than 20%.
Participants in the study included 24 healthy adults who were fed four dishes: white rice only; half white rice and half large green lentils; half white rice and half small green lentils; and half white rice and half split red lentils. The researchers measured the participants’ blood glucose levels before they ate and two hours afterward. They then repeated the whole process with white potatoes alone and the same combinations of potatoes and lentils as they had done with rice and lentils.
The researchers found that blood glucose levels dropped by nearly 20% when half of either starch was replaced by each of the three types of lentils. They noted that pulses such as lentils can slow digestion and the release of sugars found in starch into the bloodstream.
Researchers from the University of Guleph in Canada conducted the study. It was published on April 11, 2018, in The Journal of Nutrition.