Each 100g serving provides 5.3g of fiber (19% DV), which adds bulk to stool and feeds beneficial gut bacteria. This can prevent constipation and promote regular bowel movements, but a sudden increase may cause bloating or gas.
Blackberries contain 0.165mg of copper (18% DV) per 100g, a cofactor for superoxide dismutase, an enzyme that neutralizes free radicals. Daily intake helps maintain copper levels, supporting cellular protection and reducing oxidative stress.
The 5.3g fiber slows sugar absorption, and with only 4.9g sugar per 100g, blackberries have a low glycemic impact. This helps stabilize blood glucose levels, especially when eaten with meals, but eating large amounts (e.g., 300g+) could still spike sugar.
Fiber and water (88.15g per 100g) add volume without many calories (181kJ per 100g). This promotes fullness, reducing overall calorie intake if used as a snack substitute for higher-calorie foods.
Verdict
Daily blackberries are a nutrient-dense choice, especially for fiber and copper, but stick to 100–150g servings to keep sugar and calories in check.
⚠️ Who Should Avoid
- People with irritable bowel syndrome (IBS) sensitive to high-fiber foods
- Individuals on a low-FODMAP diet during elimination phase
- Those with a history of kidney stones (oxalate content, though not listed, is known)