Get Virtual Care
  • Primary Care
  • Urgent Care
  • FAQs
  • Support Center
For Businesses
  • Direct Primary Care for Organizations
  • For DMEs and Pharmacies
  • For Health Plans
  • For Providers
About Us
  • Who We Are
  • Why HealthTap
  • Our Standards
  • Contact
Log in
Book a video appointment
Book now
  • Get Virtual Care

    • Primary Care
    • Urgent Care
    • FAQs
    • Support Center
  • For Businesses

    • Direct Primary Care for Organizations
    • For DMEs and Pharmacies
    • For Health Plans
    • For Providers
  • About Us

    • Who We Are
    • Why HealthTap
    • Our Standards
    • Contact
Log in to HealthTap
HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Do iron supplements cause black tarry stools?

A doctor has provided 1 answer
Dr. Michael Teitelbaum answered

Usually: You shoud check with an md, because it could be something serious, but yes, it can be from iron.

Dr Ali agreed

Answered 6/7/2019

5.7k views

Thank

Related Questions

A member asked:

I was on 65mg iron supplements and had black stool. Suddenly my stool is no longer black. Does that mean I am no longer absorbing it all & take more?

A doctor has provided 1 answer

A member asked:

Had black non smelly (abit iron smelly?) stools, Not tar like from what i could tell. Had this for 2 days now and getting abit worried. Taking magnesium and D-vitamin supplements (no iron). Should i be worried

A doctor has provided 1 answer

A member asked:

How do you know the difference between black stool from iron supplement or bleeding? Normal brown stool before iron pills were started. Should I worry

A doctor has provided 1 answer

A member asked:

What causes light stool mixed with dark stool? I took an iron supplement yesterday. I was also recently in a car wreck but no internal bleeding was seen on CT scan?

2 doctors weighed in across 2 answers

A member asked:

Had Yellow stool for almost 4months with no other symptoms,it turned to dark green 3days ago,no iron supplements Should i worry ?

A doctor has provided 1 answer

People also searched for:

I take iron supplement and my stool was wet and black now it has suddenly turned brown (normal color). Does this cause concern?
I have been taking iron supplement for 5 months and my stools are no longer black, is this a problem?
I started taking iron supplement my stool turned black.Now after 5 months it is not black.Does that mean i am not absorbing iron anymore?
I was taking iron supplements and my stools were black. They are suddenly back to normal. Does this mean i'm no longer absorbing all of the iron?
Good day, my stool is black and I have been taking iron supplements as well, my stool also smells of blood. What could be the problem?

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

For Businesses

Direct Primary Care for OrganizationsFor DMEs and PharmaciesFor Health PlansFor Providers

Company

About UsSupport CenterContact Us

Health Content

Health TopicsDoctor Q&A by Specialty

Join Us

For DoctorsJobs
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.