It’s important to note that foods are only assigned a GI value if they contain carbs. You can use this database to find the GI value (and glycemic load, described below) of common foods. They’re quickly digested and absorbed, resulting in a rapid rise and fall of blood sugar levels. On the other hand, foods with a high GI value should be limited. They’re slowly digested and absorbed, causing a slower and smaller rise in blood sugar levels. Pure glucose is used as a reference food and has a GI value of 100.įoods with a low GI value are the preferred choice. The rates at which different foods raise blood sugar levels are ranked in comparison with the absorption of 50 grams of pure glucose. David Jenkins, a Canadian professor ( 1).
The glycemic index (GI) is a measurement system that ranks foods according to their effect on your blood sugar levels. Not all carbs are the same, as different types have unique effects on blood sugar. When you eat any type of carb, your digestive system breaks it down into simple sugars that enter the bloodstream. They’re an essential part of a healthy diet. Carbohydrates are found in breads, cereals, fruits, vegetables, and dairy products.