HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Do blueberries cause green stool?

A doctor has provided 1 answer
Dr. Thomas Wright answered

Specializes in Phlebology

Sometimes: Yes, they do, if eaten in large enough quantity. Purple and blue dye also often cause green stool.

Dr Fowler and 3 doctors agreed

Answered 12/26/2022

4.9k views

Thank
Show 1 more comment

Related Questions

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

A member asked:

I took 40mg Iron yesterday, and ate blueberries.My stool is black, but no bad odor at all. Melena or non-melena? Thank u

A doctor has provided 1 answer

A member asked:

Started exercising 5 days of the week&eating more fruits(blueberries, banana, strawberry) + granola. Been struggling to poo& dark hard pellet stools?

A doctor has provided 1 answer

A member asked:

I am experienced black tar-colored stool and anal itching. The stool is not smelling bad and i had a bowl of blueberries for breakfast. Not taking any pills. And I was squating over the toilet. ?

2 doctors weighed in across 2 answers

A member asked:

Is dark brown stool ok? I went to the doctor 5 weeks ago and they did a rectal blood test and blood tests and everything was normal. Im convinced I have cancer! My stool is formed and this is my only symptom. I eat a lot of blueberries if that helps?

4 doctors weighed in across 2 answers

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

What can cause bright green stool?
Why is my stool dark green and hard? I did eat blueberries all week?
My stool has been very dark brown since yesterday? Is this A cause for concern... I did eat spinach mostly was week and fish and blueberries?
Would eating about blueberries turn your stool dark?
Can strawberries give you red colored stool, and blueberries blue stool?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.