Blackberries, known for their exquisite taste and vibrant color, are a delicious summer treat and a potential ally in managing blood sugar levels. With a low glycemic index and rich in essential nutrients like vitamins C and K, blackberries are emerging as a diabetic-friendly fruit option. 

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Blackberries are also a notable source of dietary fiber, providing approximately 5.3 grams per 100 grams, which can aid in maintaining stable blood sugar levels and promoting digestive health.¹ This article aims to explore the nuanced relationship between blackberries and glycemic control, shedding light on their potential as a valuable addition to a balanced diet for individuals with diabetes.

Blackberries, with a serving size of 100 grams, possess a relatively low glycemic index of around 25, making them a favorable choice for individuals concerned about blood sugar management.² With approximately 9.61 grams of carbohydrates per 100-gram serving, blackberries can be incorporated into a balanced diet without causing significant spikes in blood glucose levels.¹ Considering the glycemic load (GL) per serving, which is calculated by multiplying the glycemic index by the grams of carbohydrate and then dividing by 100, the GL of blackberries per 100 grams comes to 2.53. The low GL signifies that blackberries have a minimal impact on blood sugar levels. It is worth noting that while cooking does soften the berry, it does not significantly affect the glycemic index, allowing individuals to enjoy the health benefits of blackberries, both raw and cooked.

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The glycemic index (GI) is a relative ranking of carbohydrates in foods according to how they affect blood glucose levels. Foods with a low GI value (55 or less) are more slowly digested, absorbed, and metabolized, causing a lower and slower rise in blood glucose levels. Conversely, foods with a high GI value (70 or more) cause a rapid increase in blood glucose.

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While some cooking methods can affect the glycemic index of certain foods, the impact on blackberries is minimal. Nonetheless, it's essential to note that combining blackberries with high-GI foods could affect the overall glycemic load of a meal, potentially causing a more significant impact on blood sugar levels.

Blackberries are a nutrient-dense fruit, boasting a wealth of vitamins, minerals, and antioxidants. A 100-gram serving of blackberries contains approximately 43 calories, 5.3 grams of dietary fiber, and 5.3 grams of sugar, making them a satisfying and relatively low-calorie snack option.¹ Additionally, blackberries are a rich source of vitamin C, with approximately 21 milligrams per 100 grams, contributing to their immune-boosting properties and overall health benefits.¹

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