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Nectarines, often hailed for their delightful sweetness and vibrant flavors, possess a unique nutritional profile that distinguishes them in the realm of glycemic impact. While they contain natural sugars, their relatively low glycemic index renders them a favorable option for individuals mindful of their blood sugar levels. 

Nectarines also boast significant levels of vitamins A and C, which contribute to overall immune health and skin vitality, making them a multifaceted addition to any balanced diet. Additionally, their rich fiber content is crucial in supporting digestive health and promoting a prolonged feeling of satiety, making them an excellent option for those seeking to manage their weight.

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Glycemic Index Table

The glycemic index of nectarines is estimated to be around 43.¹ Considering a serving size of 100 grams, nectarines typically contain approximately 8.9 grams of carbohydrates. By applying the formula for Glycemic Load (GL), which is the product of the glycemic index and the amount of available carbohydrate in a given serving, the GL per serving of nectarines can be calculated as 3.8.

The glycemic index of a food reflects its impact on blood sugar levels. Foods with a high glycemic index cause a rapid spike in blood sugar, while those with a low glycemic index result in a slower and more gradual rise. Cooking methods can affect the glycemic index of foods, potentially altering their digestibility and, consequently, their impact on blood sugar. Boiling, for example, can decrease the glycemic index of some foods by softening their structure, thus slowing down the rate of digestion.

Glycemic Index


Serving Size


Carbohydrate* per Serving (g)

8.9 g

GL per Serving


Nutritional Facts

Nectarines are a rich source of essential vitamins and minerals, making them a valuable addition to a healthy diet. With a 100-gram serving providing approximately 44 calories, they offer moderate dietary fiber, vitamins A and C, and beneficial compounds like beta-carotene and potassium.² These nutrients contribute to improved immune function, healthy skin, and overall well-being. 

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


44 kcal


8.9 g


1.06 g


1.7 g


0 mg


A (17 µg), B6 (0.03 mg), C (5.4 mg).


0 mg

Total Fat

0.32 g

Is Nectarine Good for Weight Loss?

Nectarines can be a valuable addition to a weight loss diet due to their low-calorie content and high fiber composition. With approximately 44 calories per 100-gram serving and a notable amount of dietary fiber, nectarines can promote a feeling of fullness, potentially reducing overall calorie intake.² 

Their natural sweetness can also satisfy cravings for sugary snacks, providing a healthier alternative to high-calorie desserts. Incorporating nectarines into a well-balanced, calorie-controlled diet, alongside regular physical activity, may support weight loss efforts.

Is Nectarine Safe for People Living with Diabetes?

Nectarines can be a safe and beneficial fruit choice for individuals with diabetes when consumed in moderation as part of a well-balanced diet. With a relatively low glycemic index, nectarines have a minimal impact on blood sugar levels compared to higher-sugar fruits, making them a suitable option for those managing their blood glucose. 

Additionally, their rich fiber content can aid in slowing the absorption of sugars and promote satiety, which may help control blood sugar levels. However, individuals living with diabetes need to monitor their carbohydrate intake from all sources, including nectarines, as part of an overall meal plan tailored to their individual needs.

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Allergies to nectarines can occur in individuals with sensitivities to certain proteins found in the fruit, particularly those with existing allergies to related fruits such as peaches, plums, and cherries. 

Symptoms can range from oral allergy syndrome, which typically involves itching or swelling of the lips, mouth, and throat, to more severe reactions such as hives, digestive issues, or even anaphylaxis in rare cases.³ 

It is crucial for individuals with known sensitivities to these fruits to exercise caution and consult with a healthcare professional if they experience adverse reactions. 

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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 Nectarine Spike Insulin?

There is no scientific evidence to suggest that nectarines spike insulin levels. Nectarines are a low glycemic index fruit, meaning they have a minimal impact on blood sugar levels. However, consuming excessive amounts of any food, including nectarines, can lead to an increase in insulin levels. It is important to consume a balanced diet and monitor portion sizes to maintain healthy insulin levels.

Is Nectarine Low Glycemic?

Yes, nectarine is considered a low glycemic fruit with a glycemic index (GI) score of 43.

Can People Living with Diabetes Eat Nectarine?

Yes, people living with diabetes can eat nectarines 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 - Nectarines, raw. 
  3. American Academy of Allergy Asthma and Immunology. (2020, September 28). Oral allergy syndrome. 

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It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout.

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About the author

Brittany Barry is a national board-certified health coach and NASM-certified personal trainer based in South Carolina.

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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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