Several scientific studies have shown that lentils can play an important role in maintaining stable blood sugar levels, especially for people with diabetes or at high risk of developing the disease.
One of the key factors that helps lentils control blood sugar is their low glycemic index. The glycemic index measures how quickly blood sugar rises after eating a certain food. Foods with a low glycemic index help maintain stable blood sugar levels, while foods with a high glycemic index can cause a sudden spike in blood sugar. Lentils have a low glycemic index, around 21-29, which helps slow down the digestion and absorption of sugar, thereby limiting the rapid increase in blood sugar levels.
In addition to their low glycemic index, lentils contain large amounts of soluble fiber, especially pectin and cellulose, which help slow the absorption of sugar into the bloodstream after meals. Diets high in fiber may improve insulin sensitivity and reduce the risk of type 2 diabetes. A study published in the American Journal of Clinical Nutrition found that adding lentils to the diet significantly improved fasting blood sugar levels and another measure of average blood sugar levels over 2-3 months.
Lentils are also a good source of plant protein and minerals such as magnesium, potassium and zinc, which are important for maintaining heart health and stabilizing blood sugar levels. The World Health Organization also confirms that consuming foods rich in plant protein, such as lentils, can reduce the risk of developing type 2 diabetes and related cardiovascular problems.