Tips and advice

About low-GI carbohydrates

Eating right when you have diabetes doesn’t have to be complex – it is about knowing what is best for you and your diabetes management plan. Knowing which foods are low-GI can be a helpful way of keeping track of your diet. Read on for a breakdown of what ‘low-GI carbohydrate’ means and how this might be helpful.

Low-GI Carbohydrate and how it can help with diabetes management.
Low-GI Carbohydrate and how it can help with diabetes management.
Low-GI Carbohydrate and how it can help with diabetes management.

What does GI mean?

GI stands for glycaemic index. This is a number from 1 to 100 that ranks carbohydrates based on how fast they are broken down into glucose and absorbed into the bloodstream.1

What are low-GI and high-GI foods?

Different foods will have a different response between people, and therefore GI numbers should be used as a guide:1,2 

High-GI foods

Food with a GI greater than 70. They are quickly digested and absorbed into the bloodstream, resulting in big fluctuations in blood glucose levels.

Low-GI foods

Food with a GI less than 55. They are slowly digested and absorbed into the bloodstream, resulting in small fluctuations in blood glucose levels.

How can low-GI carbohydrates help people with diabetes?

It’s recommended that people living with diabetes consume low-GI carbohydrates, to help reduce their average blood glucose levels. This is because low-GI carbohydrates are broken down more slowly, and therefore can help to keep blood glucose levels stable.2

Next time you are doing a grocery shop, keep an eye out for these low-GI foods that can help with your diabetes management:2

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Traditional rolled oats

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Dense wholegrain breads

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Lentils and legumes

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Sweet corn

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Milk

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Yogurt

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Pasta cooked until al dente

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Most types of fresh fruit

Things to remember2

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Not all people will have the same glycaemic response to different foods, so GI numbers should be used as a guide only.

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Even if a food is low-GI, if you eat large quantities this will still affect your blood glucose, so keep portion size in mind.

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Just because a food is low-GI, this does not necessarily mean it is healthy.

How can Glucerna support a low-GI eating plan?

Glucerna is a health shake that is specially formulated to support people living with diabetes or impaired glucose tolerance, as part of a diabetes management plan including diet and exercise.3

Glucerna is low-GI:3

Glucerna Powder Vanilla - Nutritional supplement with a low-GI of 35.

Vanilla: GI 354

Glucerna Powder Chocolate - Nutritional supplement with a low-GI of 29.

Chocolate: GI 295

Glucerna Ready-To-Drink - Nutritional supplement with a low-GI of 27.

Ready-to-drink (liquid): GI 276

Glucerna has been clinically shown to provide a steady release of glucose, helping you minimise your blood glucose spikes.*3,7–9

Discover more tips and resources

Glucerna is Food for Special Medical Purposes. Use under medical supervision.

*When used as a breakfast replacement as part of a structured lifestyle intervention.7–9

References: 1. University of Sydney Glycemic Index Research and GI News. About GI. https://glycemicindex.com/about-gi/. Accessed May 2023. 2. Diabetes Australia. Carbohydrates, protein and fats. https://www.diabetesaustralia.com.au/living-with-diabetes/carbs-protein-fats/ Accessed May 2023. 3. Glucerna® Powder Product Label. 4. Glucerna® Y495 GI test result. 5. Glucerna® Y523 GI test result. 6. Glucerna® Y578 GI test result. 7. Devitt A, et al. Journal of Diabetes Research and Clinical Metabolism. 2012;1(1):20, 8. Mottalib A, et al. Nutrients. 2016;8(7):443, 9. Dávila LA, et al. Nutrients. 2019;11(7):1477. 10. Better Health Channel. Diabetes. Available at: https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/diabetes. Accessed May 2023. 11. Better Health Channel. Pre-diabetes. Available at: https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/diabetes-pre-diabetes. Accessed May 2023.