Skip to main content

Medium chain triglycerides and Diarrhea: What Users Say

Brand names: MCT

Diarrhea: mentioned by 9 users (36.0%)

Based on user experiences from 25 Medium chain triglycerides reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

diarrhea 36.0%
nausea 16.0%
upset stomach 16.0%
vomiting 16.0%
chills 12.0%
cramps 12.0%
stomach pain 12.0%

Reviews for Medium chain triglycerides

Commonly mentioned side effects
  • Jod...
  • Taken for less than 1 month
  • May 24, 2020

For Dietary Supplementation "I took a tiny sample of MCT oil (Bulletproof) in my coffee yesterday. Took it on an empty stomach. Within 5 minutes of drinking the coffee, I experienced severe cramping, dizziness, a blackout that caused me to pass out on my kitchen floor and hit my head, and vomiting. This was all followed by diarrhea and abdominal cramping that lasted for 6 hours or until I finally took Pepto Bismol. And then I was just left with nausea. I tremendously regret taking the oil before doing well-rounded research. I understand it doesn’t affect everyone the same, but it was a seriously traumatic experience for me, and I hope anyone considering taking it for the first time reads this and takes heed."

1 / 10
Was this helpful?YesNo
44 Report
  • poc...
  • Taken for less than 1 month
  • February 23, 2025

Medium chain triglycerides for Dietary Supplementation "I've been taking MCT for a week now. I started with half a top in water to see if I had a bad reaction. I did get a little bit of diarrhea the first 2 days as well as a little upset stomach, but it all went away by the third day. I've lost 3 lbs. so far. I have also cut my sugar intake, and I stop eating at 6 p.m. After that, I only have tea, coffee, or water. We'll see how it goes after a month or so."

8 / 10
Was this helpful?YesNo
2 Report
  • Lau...
  • Taken for less than 1 month
  • January 7, 2019

For Dietary Supplementation "1/2 tsp first time using it. Within a half hour, I was throwing up, burning up to the point I took my clothes off, laying on the floor, felt like I was dying. Bad stomach pain and diarrhea. Had to take the day off work. Finally felt better a few hours later."

1 / 10
Was this helpful?YesNo
28 Report
  • Sha...
  • Taken for less than 1 month
  • March 10, 2020

For Dietary Supplementation "Took 4 to 5 drops in a smoothie, and I totally regret it. I'm in horrible pain. My abdomen is killing me, the diarrhea never stops and smells foul. I won't ever use it again. They're not kidding when they say, 'can cause G.I. discomfort.'"

1 / 10
Was this helpful?YesNo
13 Report
  • Pat...
  • Taken for less than 1 month
  • July 6, 2021

Medium chain triglycerides for Dietary Supplementation "I had one dose in my coffee on Saturday, and it is Tuesday today, and I still have very bad diarrhea and pain in my stomach, and I can see my stomach expanded on one side. Never going to take MCT again."

1 / 10
Was this helpful?YesNo
10 Report

Are you taking this medicine?

Your review helps others make informed decisions.
Write a review
  • Anonymous
  • Taken for less than 1 month
  • April 26, 2022

For Dietary Supplementation "I followed directions on the bottle; 1 tsp in a cup of tea; after fifteen minutes, stomach and bowels started hurting severely; fifteen minutes later I was praying to die! I asked God to let me die or please take the pain away! The pain caused profuse sweating! I thought I was dying! Had vomiting, severe diarrhea that lasted on and off for 12 hours along with severe cramping pain! After 16 hours, the pain was easing up; thought I felt as if I needed to use the bathroom, and when I did, I passed nothing but bright red blood! I knew bright red blood suggests arterial blood and isn’t really serious! After surviving these initial episodes, I lived on a liquid diet for two days and very little solid food for another two days; vibrations from walking caused pain; took over a week to be normal again! I usually read information before starting something new but NEVER dreamed an 'oil' would have such horrendous side effects! Learned my lesson!"

1 / 10
Was this helpful?YesNo
5 Report
  • Jax...
  • Taken for 1 to 6 months
  • June 5, 2022

For Dietary Supplementation "I started a keto diet and used the chocolate-flavored powdered oil in my coffee 3 times a day. The only times I've had problems with it was when I cheated and ate junk, then it gave me diarrhea and terrible gas. As long as I ate healthy, I had no problems at all. I've lost 65 lbs and feel great!"

10 / 10
Was this helpful?YesNo
5 Report
  • Vos...
  • Taken for less than 1 month
  • November 10, 2022

Medium chain triglycerides for Dietary Supplementation "Took the recommended minimum dose of 1 teaspoon, and within 20 minutes, became dreadfully ill. I experienced horrendous stomach pain and started vomiting, very frightening indeed. Eventually, after a few hours, I suffered diarrhea and felt cold and shivery the whole night long. I still felt stomach pains the next day. Definitely would not recommend."

1 / 10
Was this helpful?YesNo
5 Report
  • Ryd...
  • Taken for less than 1 month
  • November 14, 2017

Medium chain triglycerides for Dietary Supplementation "Took it for two weeks. After a week, started getting sick as a dog. Foul stomach, diarrhea, tired. Can't wait to stop using it..."

2 / 10
Was this helpful?YesNo
32 Report

Are you taking this medicine?

Your review helps others make informed decisions.
Write a review
Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.