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December 4, 2023
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Plums, often celebrated for their sweet and juicy flavor, have a lesser-known but crucial characteristic that holds significance for those managing their blood sugar levels – their glycemic index (GI). 

We will explore how plums, a delicious stone fruit, possess a moderate glycemic index, which can be advantageous for individuals with diabetes or those seeking to maintain stable blood sugar levels. This article will also delve into the nutritional benefits of plums and provide a comprehensive understanding of why including plums in your diet can be an essential choice for overall health and glycemic control.

Glycemic Index Table

The glycemic index measures how quickly a carbohydrate-containing food raises blood sugar levels compared to pure glucose, which has a GI of 100. Depending on their ripeness and variety, plants have a low to moderate glycemic index, typically ranging from 39 to 53. This means that plums have a relatively gentle impact on blood sugar when consumed in reasonable portions.¹

Glycemic Index


Serving Size


Carbohydrate* per Serving (g)

9.6 g

GL per Serving


Nutritional Facts

Plums are nutritious fruits with essential vitamins, minerals, and antioxidants. They are a good source of vitamin C, providing about 9.5 mg per 100g serving, which contributes to immune support and skin health. Plums also contain dietary fiber, with approximately 1.4 grams per 100g, aiding digestion and promoting a feeling of fullness.² Additionally, they offer small amounts of vitamin K, vitamin A, and various B vitamins, making them a valuable addition to a balanced diet.

The nutritional information below is for 100 g of plums.²


46 kcal


11.4 g


0.7 g


1.4 g


0 mg


A (17 µg), B12 (0 µg), B6 (0.03 mg), C (9.5 mg).


0 mg

Total Fat

0.28 g

Is Plum Good for Weight Loss?

Plums can benefit those on a weight loss diet due to their low-calorie content and high dietary fiber. A 100g serving of plums contains only about 46 calories and provides approximately 1.4 grams of dietary fiber, which can promote feelings of fullness and help control appetite.² This fiber content aids in weight management by reducing overall calorie intake and supporting a balanced diet.

Furthermore, plums contain various vitamins and minerals, including vitamin C, vitamin K, and potassium, contributing to overall health and well-being during a weight loss journey. While plums alone are not a miracle weight loss solution, they can be part of a nutritious and calorie-conscious diet.

To maximize their weight loss benefits, individuals should incorporate plums into a well-rounded diet that includes a variety of fruits, vegetables, lean proteins, and whole grains. 

Is Plum Safe for People Living with Diabetes?

Plums can be a safe and nutritious addition to the diet of individuals with diabetes when consumed in moderation and as part of a balanced meal plan. Plums have a relatively low to moderate glycemic index (GI), typically ranging from 39 to 53, which means they have a relatively gentle impact on blood sugar levels when consumed in standard serving sizes. Their low glycemic load (GL) of approximately 3.76 to 5.09 for a 100g serving further supports their suitability for individuals with diabetes [source:].

Additionally, plums provide essential vitamins, minerals, and dietary fiber, which can benefit overall health and glycemic control. The fiber content in plums, approximately 1.4 grams per 100g serving, can help regulate blood sugar levels by slowing down the absorption of carbohydrates and promoting a feeling of fullness.² However, individuals with diabetes should still monitor their blood sugar levels and consult a healthcare professional or registered dietitian to determine the appropriate portion sizes and overall dietary plan.


Allergies to plums, while relatively rare, can occur in some individuals. These allergies are typically associated with a condition known as oral allergy syndrome (OAS), which is more common in people with pollen allergies, especially birch pollen allergy. OAS can cause mild allergic reactions such as itching and swelling of the lips, tongue, and throat when consuming plums or related fruits due to cross-reactivity between certain proteins in these fruits and pollen allergens.3

Individuals with known pollen allergies need to be aware of the potential for cross-reactivity and monitor their reactions when consuming plums or other related fruits. If severe symptoms like difficulty breathing or anaphylaxis occur, immediate medical attention is necessary. 

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What is Glycemic Index?

The glycemic index (GI) is a measure of how quickly a carbohydrate-containing food raises blood sugar levels compared to a reference food, usually glucose. It ranks foods on a scale from 0 to 100, with higher values indicating a faster rise in blood sugar. The glycemic index (GI) scale is typically categorized as follows: Low GI [55 or less], Medium GI [56-69], High GI [70 or higher]. Foods with a high glycemic index digest rapidly and can cause dramatic fluctuations in blood glucose or glucose spikes.

What is Glycemic Load?

Glycemic load (GL) takes into account both the quality (glycemic index) and quantity (carbohydrate content) of carbohydrates in a specific serving of food. It is a measure of how much a particular food will raise blood sugar levels. GL is calculated by multiplying the glycemic index of a food by its carbohydrate content and dividing it by 100. It provides a more accurate representation of the overall impact of a food on blood sugar compared to the glycemic index alone.

Does Plum Spike Insulin?

No, plums do not typically cause a significant spike in insulin levels. They have a low to moderate glycemic index and contain dietary fiber, which helps regulate blood sugar levels by slowing down the digestion and absorption of carbohydrates. However, individual responses may vary, and it's important to consider portion control and overall dietary context when managing blood sugar levels.

Is Plum Low Glycemic?

Yes, plums are considered low glycemic due to their low glycemic index (GI) score of 40-55. This means they have a minimal impact on blood sugar levels and can be a good option for people with diabetes or those looking to manage their blood sugar levels.

Can People Living with Diabetes Eat Plum?

Yes, people living with diabetes can eat plums in moderation as they are low in glycemic index and high in fiber. However, it is important to monitor blood sugar levels and consume them as part of a balanced diet.

Topics discussed in this article:


  1. The University of Sydney. (2023, May 1). Glycemic Index – Glycemic Index Research and GI News
  2. USDA FoodData Central. (2019, April 1). Food Details - Plums, raw. Retrieved from
  3. American Academy of Allergy Asthma and Immunology. (2020, September 28). Oral allergy syndrome.

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Please note: The Signos team is committed to sharing insightful and actionable health articles that are backed by scientific research, supported by expert reviews, and vetted by experienced health editors. The Signos blog is not intended to diagnose, treat, cure or prevent any disease. If you have or suspect you have a medical problem, promptly contact your professional healthcare provider. Read more about our editorial process and content philosophy here.

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