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Spaghetti squash, often lauded for its pasta-like texture and versatility in various dishes, offers a unique combination of nutritional benefits. Rich in vitamins C and A, it also provides considerable fiber and essential minerals such as manganese and potassium. Despite its natural sweetness, spaghetti squash boasts a significantly lower glycemic index compared to traditional pasta, making it a favorable choice for individuals looking to manage their blood sugar levels. 

Additionally, its high water content can contribute to a feeling of fullness, aiding in weight management and promoting a healthy digestive system. A cup of cooked spaghetti squash contains only about 10 grams of carbohydrates, making it a suitable alternative for those aiming to control their carbohydrate intake.¹

This article aims to provide a comprehensive understanding of the impact of spaghetti squash on glycemic control and its potential role in promoting overall well-being, with a focus on its nutritional composition and health benefits beyond just glycemic impact.

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Glycemic Index Table

A standard serving of 100 grams of cooked spaghetti squash contains approximately 6.91 grams of carbohydrates.¹ With a glycemic index (GI) of around 40, spaghetti squash ranks relatively low on the glycemic index scale, making it a favorable option for individuals seeking to manage their blood sugar levels.² Additionally, its glycemic load (GL) per serving would be around 2.76, calculated by multiplying the glycemic index by the grams of carbohydrates per serving and then dividing by 100.

It's important to note that various factors, including the cooking method, can influence the glycemic index of foods. While cooking spaghetti squash by boiling may have a minimal impact on its glycemic index, other cooking methods, such as roasting or baking, could slightly elevate the glycemic index due to caramelization processes. Therefore, it is advisable to choose cooking methods that preserve the vegetable's natural integrity and minimize additional sugars or fats.

Understanding the glycemic index is essential as it indicates how quickly a particular food can raise blood sugar levels. Foods with a high glycemic index tend to cause sharp spikes in blood sugar, potentially leading to adverse health effects, particularly for individuals with conditions like diabetes. Conversely, foods with a low glycemic index are digested and absorbed more slowly, gradually increasing blood sugar levels, thus promoting better blood sugar control and overall health.

Glycemic Index


Serving Size


Carbohydrate* per Serving (g)

6.91 g

GL per Serving


Nutritional Facts

Spaghetti squash is a nutrient-dense vegetable, rich in essential vitamins and minerals. A 100-gram serving of cooked spaghetti squash contains approximately 31 calories, 0.6 grams of protein, 0.6 grams of fat, and 6.91 grams of carbohydrates, along with 1.5 grams of dietary fiber.¹ Furthermore, it is a notable source of vitamins C and A, providing approximately 5.6 milligrams and 31 micrograms in a 100-gram serving.¹

Understanding the nutritional content of spaghetti squash is crucial for individuals seeking to incorporate nutrient-rich foods into their diet, as it can contribute to overall health and well-being. The vegetable's low calorie and carbohydrate content, combined with its significant fiber and vitamin content, make it a valuable addition to a balanced and wholesome diet.

The nutritional information below is for 100 g of spaghetti squash.¹


31 kcal


6.91 g


0.6 g


1.5 g


7.39 mg


A (28.74 µg), B12 (0.13 µg), B6 (0.18 mg), C (5.6 mg), D (1.58 IU).


163.1 mg

Total Fat

3.98 g

Is Spaghetti Squash Good for Weight Loss?

Spaghetti squash can be a beneficial component of a weight loss diet due to its low-calorie content, high water content, and significant fiber content. With approximately 31 calories and 1.5 grams of fiber per 100-gram serving, spaghetti squash can promote satiety and help control appetite, potentially leading to reduced overall calorie intake. Its fiber content can also aid in digestive health and promote a healthy gut microbiome, which is increasingly recognized for its role in supporting weight management. Furthermore, incorporating spaghetti squash into meals can serve as a satisfying substitute for higher-calorie, higher-carbohydrate pasta options, supporting a balanced and nutrient-dense approach to weight loss.

Understanding the role of spaghetti squash in weight management is essential, as it can guide individuals in making informed dietary choices that contribute to sustainable and effective weight loss strategies. Spaghetti squash can be a valuable addition to a weight loss plan when combined with a balanced diet and regular physical activity. Consulting a registered dietitian or healthcare provider can provide personalized guidance on incorporating spaghetti squash and other nutritious foods into a successful weight loss regimen.

Is Spaghetti Squash Safe for People Living with Diabetes?

Spaghetti squash is generally considered safe for consumption by individuals with diabetes due to its relatively low glycemic index and carbohydrate content. With a glycemic index of around 40 and only 6.91 grams of carbohydrates per 100-gram serving, spaghetti squash can be a beneficial addition to a diabetic diet, particularly when incorporated as a substitute for higher glycemic index and carbohydrate foods. Its high fiber content can also contribute to better blood sugar control and improved insulin sensitivity, as fiber can slow down the absorption of glucose. However, it is crucial for individuals with diabetes to monitor their portion sizes and overall carbohydrate intake to maintain stable blood sugar levels.

Ensuring accurate information about the suitability of spaghetti squash for individuals with diabetes is vital, as it can assist in making informed dietary choices that align with blood sugar management goals. Consulting a healthcare provider or a registered dietitian can provide personalized guidance on incorporating spaghetti squash into a balanced diabetic meal plan.

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While spaghetti squash is generally considered safe for consumption, allergic reactions to this vegetable are rare but possible. Symptoms of an allergic response to spaghetti squash may include itching, swelling, or redness of the lips, mouth, or throat, along with gastrointestinal distress such as nausea, vomiting, or diarrhea. It is important for individuals who suspect an allergy to spaghetti squash to consult with an allergist for proper diagnosis and guidance. However, comprehensive data specifically focused on spaghetti squash allergies is limited, and more research is needed to fully understand the prevalence and mechanisms of potential allergic reactions.

It's crucial for individuals to be aware of the possibility of allergic reactions, even though they are uncommon, as prompt recognition and appropriate management can help prevent severe complications. Under the supervision of a healthcare professional, allergy testing is recommended for those experiencing adverse reactions after consuming spaghetti squash or any related foods.

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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 Spaghetti Squash Spike Insulin?

No, spaghetti squash does not spike insulin levels. It is a low-carbohydrate vegetable that is high in fiber and water content, which helps to slow down the absorption of glucose into the bloodstream and prevent spikes in insulin levels. Additionally, spaghetti squash has a low glycemic index, which means it has a minimal impact on blood sugar levels.

Is Spaghetti Squash Low Glycemic?

Yes, spaghetti squash is low glycemic as it has a glycemic index of 50, which is considered low.

Can People Living with Diabetes Eat Spaghetti Squash?

Yes, people living with diabetes can eat spaghetti squash as it is a low-carbohydrate and low-glycemic index vegetable. It can be a healthy substitute for pasta in their diet. However, portion control and monitoring blood sugar levels are still important.

Topics discussed in this article:


  1. USDA FoodData Central. (2019, April 1). Food Details - Squash, winter, spaghetti, raw. 
  2. The University of Sydney. (2023, May 1). Glycemic Index – Glycemic Index Research and GI News

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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