What are the effects of blackberries on a urine?

Blackberries can affect urine in a few ways due to their high antioxidant content and natural compounds. They may contribute to a deeper color in urine because of their anthocyanin pigments, which can sometimes lead to a reddish hue. Additionally, the high fiber content in blackberries can influence urine output and overall hydration. However, these effects are generally mild and vary from person to person.