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

Black stool.... taking ferrous ascorbate supplement from 2 years is it due to ferrous ascorbate?

A doctor has provided 1 answer
Dr. Sam Sugar answered

Probably: If so the stool is really very dark green--more likely if there are no other symptoms. Stop taking it and it should resolve with in a few days.

Answered 5/6/2014

4.1k views

Thank

Related Questions

A member asked:

Green stool, smelly gas? Been taking new workout supplements for about two weeks. Been drinking more water and still drink a good amount of green tea.

2 doctors weighed in across 2 answers

A member asked:

Lately i've been taking iron supplements, is it normal to have black stool?

A doctor has provided 1 answer

A member asked:

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?

3 doctors weighed in across 2 answers

A member asked:

I'm taking Ferrous Fumarate iron 330 mg twice a day for iron deficiency and my stool is not dark or black, does that mean my body is not absorbing the iron?

A doctor has provided 1 answer

A member asked:

I have been taking iron supplement for 5 months and my stools are no longer black, is this a problem?

A doctor has provided 1 answer

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:

Black stool due to folic acid and ferrous ascorbate tablets?
Can taking ferrous sulfate supplements cause dark green/black stools?
Would taking ferrous gluconate together with calcium ascorbate help the absorption of iron due to the c-vitamin or hinder it due to the calcium?
Black stool.... Taking folic acid supplement from 2 years is it due to folic acid?
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

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.