Carbohydrate: Do you know what is Glycaemic Index?

Have you ever come across glycaemic index in food? What is glycaemic index? This is a ranking where value from 0 to 100 is given to specific food depends on after eating this food, how much and how fast this food increase your blood glucose levels.

Foods with high (above 70) glycaemic index:

Foods that are broke down and absorbed fast in your body will lead to a spike in your blood glucose level and results in unstable blood glucose profiles. Thus, rated high in glycaemic index. Foods with high glycaemic index consist of:

  • White rice and white bread
  • Sugary and sweet foods
  • Potatoes
  • Soft drinks with high amount of sugar

Foods with medium (from 55 -70) and low (less than 55) glycaemic index:

Medium and low glycaemic index foods are broke down and absorbed more slowly which increase your blood glucose level in a stable manner. Some of the medium or low glycaemic index foods are:

  • Brown rice
  • Fruits
  • Non-starchy vegetables
  • Oats

Do you know?

Are foods with low glycaemic index is a healthier choice? Surprisingly the answer is no, as foods with low glycaemic index are not all healthy while not all foods with high glycaemic index are unhealthy. Such as pineapple and watermelon have high glycaemic index, but these are not unhealthy foods.

Apart from that, different recipe and cooking process will change the glycaemic index value. For example, foods that cooked with protein or fat will lower glycaemic index as protein and fat slower down carbohydrate absorption in your body. Having a balanced diet with right ratio of carbohydrate, protein, fats, vitamins and minerals are more important rather than focusing on glycaemic index value of foods.

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Reference: 2020. Diabetes: Limitations of Glycaemic Index for Blood Glucose Control [online] Available at: <>

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