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October 26, 2023
May 20, 2024
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Grapes, the succulent and versatile fruits that come in various colors and flavors, have long been a popular snack choice due to their natural sweetness and convenience. Apart from their delectable taste, grapes possess a unique nutritional profile that includes essential vitamins and minerals such as vitamin C and potassium and a considerable amount of antioxidants. 

Moreover, despite their natural sugars, grapes boast a relatively low glycemic index, making them a favorable option for individuals seeking to manage their blood sugar levels. Grapes provide a rich source of polyphenols, which may contribute to their potential health benefits beyond their impact on glycemic response.¹

This article will explore the intricate relationship between grape consumption, glycemic control, and the broader health implications of incorporating grapes into a balanced diet.

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Glycemic Index Table

According to the available data, a 100-gram serving of grapes contains approximately 17 grams of carbohydrates.¹ The glycemic index of grapes is estimated to be medium, ranging from 43 to 53.² Considering the carbohydrate content and the glycemic index, the glycemic load per serving of grapes is roughly 7 to 9. 

The glycemic index represents the rate at which a carbohydrate-containing food raises blood glucose levels. Foods with a high glycemic index tend to cause a rapid spike in blood sugar levels, while those with a low glycemic index lead to a slower, more gradual increase. Cooking can affect the glycemic index of certain foods; however, with grapes, the glycemic index remains relatively stable whether consumed fresh or in cooked forms. It is crucial to consider not only the glycemic index but also the portion sizes and the overall dietary context when managing blood sugar levels.

Glycemic Index

48

Serving Size

100g

Carbohydrate* per Serving (g)

17 g

GL per Serving

8.00

Nutritional Facts

Grapes are a delectable and convenient snack and a rich source of essential nutrients. They are packed with vitamins such as vitamin C and vitamin K, along with vital minerals like potassium and copper.¹ Additionally, grapes contain powerful antioxidants, including resveratrol and flavonoids, which have been associated with various health benefits, including potential anti-inflammatory and heart-protective effects. 

The nutritional information below is for 100 g of grapes.¹

Calories

69 kcal

Carbs

17 g

Protein

0.72 g

Fiber

0.9 g

Cholesterol

0 mg

Vitamins

A (3 µg), B6 (0.09 mg), C (3.2 mg).

Sodium

2 mg

Total Fat

0.16 g

Is Grape Good for Weight Loss?

Grapes can be a valuable component of a weight loss regimen due to their low-calorie density and high water content, making them a satisfying and hydrating snack option. Furthermore, the presence of dietary fiber in grapes can promote feelings of fullness and aid in better appetite control, potentially supporting weight management efforts. 

Studies cited by the United States Department of Agriculture (USDA) suggest that incorporating grapes into a well-balanced, calorie-controlled diet, alongside regular physical activity, can contribute to an overall healthy eating pattern conducive to weight loss.¹

Is Grape Safe for People Living with Diabetes?

Grapes can be a beneficial addition to the diet of individuals with diabetes, given their relatively low glycemic index and potential health-promoting properties. 

Studies suggest that the polyphenols present in grapes may help improve insulin sensitivity and reduce the risk of certain complications associated with diabetes, such as cardiovascular disease. Additionally, the fiber content in grapes may contribute to better blood sugar management. 

A review of the nutritional composition of grapes by the American Diabetes Association (ADA) indicates that incorporating grapes into a well-balanced diet in appropriate portion sizes can be a safe and nutritious choice for individuals with diabetes.

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Allergies

Allergic reactions to grapes, although relatively uncommon, can manifest in various forms, ranging from mild oral allergy syndrome symptoms such as itching and swelling of the lips and mouth to more severe anaphylactic reactions. Research suggests that grape allergies can be triggered by specific proteins found in the fruit and, in some cases, may also be linked to cross-reactivity with other fruits or pollen, especially in individuals with existing pollen allergies.

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FAQs

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 Grape Spike Insulin?

Grapes have a moderate glycemic index and can cause a moderate increase in blood sugar levels, which may result in a modest release of insulin. However, the overall impact on insulin levels is not typically considered significant. It's important to consume grapes in moderation as part of a balanced diet and consider individual factors such as portion size, overall carbohydrate intake, and personal insulin sensitivity.

Is Grape Low Glycemic?

Yes, grapes have a low glycemic index, which means they do not cause a rapid increase in blood sugar levels.

Can People Living with Diabetes Eat Grape?

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

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References

  1. USDA FoodData Central. (2019, April 1). Food Details - Grapes, green, seedless, raw. https://fdc.nal.usda.gov/fdc-app.html#/food-details/2346413/nutrients 
  2. The University of Sydney. (2023, May 1). Glycemic Index – Glycemic Index Research and GI Newshttps://glycemicindex.com/

About the author

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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