Strawberries (Fragaria ananassa) are a bright, juicy red fruit originating in Europe in the 18th century. A favorite summer fruit, these berries appear in jams, jellies, and desserts. Strawberries are the sixth most popular fruit in the United States with the average American consuming a little over five pounds of this red berry yearly.¹
This article will explore how strawberries may impact blood sugar levels and the health benefits of including this fruit in your diet.
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Glycemic Index Table
Strawberries are considered a low glycemic index fruit, with a score of 40.² This glycemic index rating means that consuming strawberries should not cause dramatic rises or spikes in blood sugar levels.
While fresh fruit is always the best option, many people consume strawberries in jams and jellies, which can contain added sugars. These add-ins can dramatically increase the glycemic index of the product, and people living with chronic conditions like diabetes should be mindful of consumption. When selecting a product that may include this delicious berry, review the nutrition label to determine if other ingredients have been added.
The below glycemic index and glycemic load data is for 100g (approximately 3.5 ounces) of raw strawberries:² ³
Nutritional Facts
Strawberries are made up of 91% water and 7.7% carbohydrates. They also contain small amounts of fat (0.3%) and protein (0.7%). Strawberries provide vitamins, fiber, and high levels of antioxidants without containing significant amounts of sodium, fat, or cholesterol. One serving (eight strawberries) provides more vitamin C than an orange.
The nutritional information below is for 100g of raw strawberries.³
Nutritional Facts
Are Strawberries Good for Weight Loss?
If you want to lose weight as a health goal, you must eat in a caloric deficit, which means burning more calories than consumed throughout the day. Strawberries are low in calories but high in volume, allowing you to feel fuller without consuming more calories.
Strawberries are also lower in sugar than other fruit options, which allows them to fit into almost every eating style, including keto and low-carb diets.
Strawberries contain almost 3 grams of fiber per 100 grams. Research has found that increasing fiber intake can reduce body weight without making other changes in your food choices.²⁶ Fiber also serves as a food source for healthy gut bacteria. Possessing a thriving number of these healthy bacteria is linked to better blood sugar control, appetite suppression, and a healthier metabolism.²⁷
One way to support your weight loss goals with the consumption of strawberries is to replace higher-calorie foods with these berries. Ways to do this include:
- Creating a strawberry protein shake with unsweetened nut milk
- Enjoy whole strawberries
- Slice strawberries on top of plain Greek yogurt
Are Strawberries Safe for People Living with Diabetes?
Strawberries are a safe choice for people living with diabetes due to their low glycemic index and low glycemic load ratings.
A 2020 review suggests that strawberries could improve glycemic profiles since they have a low glycemic index and contain fiber.24 Strawberries also contain magnesium, which a 2022 study found may help increase insulin sensitivity in those living with type 2 diabetes.25
When choosing products that contain strawberries, be mindful of added sugars. Many processed foods, such as jams or syrups, can have added sugars and not contain actual strawberries. If possible, aim for fresh or frozen strawberries without added sugars.
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Allergies
Strawberry allergies are fairly common, especially in young children. This is normally attributed to strawberries containing a protein that causes allergy symptoms in individuals sensitive to birch pollen or apples (also known as a pollen-food allergy).²¹ ²² ²³
Symptoms of a strawberry allergy include itchiness of the mouth, lips, or throat, swelling, and redness. In severe cases, allergic reactions can cause hives, difficulty breathing, and anaphylaxis. Please consult a healthcare professional if you suspect an allergy, sensitivity, or intolerance to strawberries.
Outside of an allergic reaction, strawberries contain goitrogens that could cause health complications in people with thyroid problems.
If you are concerned about consuming strawberries, please consult your healthcare provider.
References
References
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- University of Sydney. (2023, May 1). Glycemic Index – Glycemic Index Research and GI News. https://glycemicindex.com/
- USDA FoodData Central. (2019, Dec 16). Food Details - Strawberries, raw. Retrieved from https://fdc.nal.usda.gov/fdc-app.html#/food-details/2346409/nutrients
- Nile, S. H., & Park, S. W. (2014). Edible berries: bioactive components and their effect on human health. Nutrition (Burbank, Los Angeles County, Calif.), 30(2), 134–144. https://doi.org/10.1016/j.nut.2013.04.007
- Manganaris, G. A., Goulas, V., Vicente, A. R., & Terry, L. A. (2014). Berry antioxidants: small fruits providing large benefits. Journal of the science of food and agriculture, 94(5), 825–833. https://doi.org/10.1002/jsfa.6432
- Paredes-López, O., Cervantes-Ceja, M. L., Vigna-Pérez, M., & Hernández-Pérez, T. (2010). Berries: improving human health and healthy aging, and promoting quality life--a review. Plant foods for human nutrition (Dordrecht, Netherlands), 65(3), 299–308. https://doi.org/10.1007/s11130-010-0177-1
- High Cholesterol Facts. (2023, May 15). Centers for Disease Control and Prevention. https://www.cdc.gov/cholesterol/facts.htm
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- Ludwig D. S. (2002). The glycemic index: physiological mechanisms relating to obesity, diabetes, and cardiovascular disease. JAMA, 287(18), 2414–2423. https://doi.org/10.1001/jama.287.18.2414
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- Schwingshackl, L., & Hoffmann, G. (2013). Long-term effects of low glycemic index/load vs. high glycemic index/load diets on parameters of obesity and obesity-associated risks: a systematic review and meta-analysis. Nutrition, metabolism, and cardiovascular diseases : NMCD, 23(8), 699–706. https://doi.org/10.1016/j.numecd.2013.04.008
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- Törrönen, R., Kolehmainen, M., Sarkkinen, E., Poutanen, K., Mykkänen, H., & Niskanen, L. (2013). Berries reduce postprandial insulin responses to wheat and rye breads in healthy women. The Journal of nutrition, 143(4), 430–436. https://doi.org/10.3945/jn.112.169771
- Harvard Health. (2020, April 1). Understanding acute and chronic inflammation. https://www.health.harvard.edu/staying-healthy/understanding-acute-and-chronic-inflammation
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