What does GI mean?

The glycaemic index (GI) is a ranking given to food to describe how quickly the carbohydrate in the food is broken down and absorbed into the bloodstream.

The GI scale ranges from 0 to 100.

  • Lower numbers represent a low GI food
  • Higher numbers represent a high GI food

Foods with a high GI are quickly broken down and absorbed by the body and result in a rapid rise in blood sugar levels.

Low GI foods are broken down and absorbed more slowly into the blood stream. They result in a steady rise in blood sugar and insulin levels.

Eating low GI foods may:

  • help to keep hunger at bay for longer after eating
  • provide a gradual, continuous supply of energy from one meal to the next
  • help to keep blood sugar levels stable in those with diabetes, by providing a slower, more sustained release of sugar into the bloodstream
An Accredited Practising Dietitian can provide further information and support on how the GI can best be applied to your diet and lifestyle