A member asked:

My teen cousin (18) after eating blueberries a day ago noticed black specks in his stool. today, he saw more black specks appearing even though he ate 0 blueberries. we feel it is just his colon emptying the skins. is this correct? is this a concern?

A doctor has provided 1 answer

Not a concern. It takes 3-4 days for ingested material to pass completely out of the stool and debris from a single feed may be spread out over several days.

Answered 7/14/2023

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