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Yam glycemic index (GI)

Article author photo Elen Khachatrian by Elen Khachatrian | Last updated on August 21, 2023
Medically reviewed by Jack Yacoubian Article author photo Jack  Yacoubian

Yam contains negligible amounts of sugars, 0.5g per 100g. In addition, it contains a rich amount of fibers, 4g per 100g. 

According to The International Tables of Glycemic Index, yam has a glycemic index equal to 51 [1].

The GI of peeled and boiled yam falls in the range of 25±4.

African white yam (Dyscoria species) has a glycemic index of 65±7 [1].

Another study shows that the glycemic index of white Caribbean yam (Dioscorea alata) is equal to 62 [2].

According to the study, yams are diabetes-friendly as it aids in reducing the cells' insulin resistance and, thus, reduce the risk of contracting diabetes [3].

In summary, yam is a low glycemic index food and should be added in diabetic's nutrition. 

By following the link, you can find our glycemic index table with sources.


  2. Glycaemic index of selected staples commonly eaten
Article author photo Elen Khachatrian
Education: Nutrition & Microbiology at YSU
Last updated: August 21, 2023
Medically reviewed by Jack Yacoubian

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Data provided by should be considered and used as information only. Please consult your physician before beginning any diet.