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Biotin and Upset Stomach: What Users Say

Brand names: Appearex, Hair, Skin & Nails, Cyto B7

Upset stomach: mentioned by 3 users (5.8%)

Based on user experiences from 52 Biotin 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.

headaches 28.8%
acne 19.2%
nausea 7.7%
hair loss 5.8%
migraine 5.8%
upset stomach 5.8%

Reviews for Biotin

Showing 3 reviews tagged with "upset stomach". Clear filters to view all 52 reviews.
Commonly mentioned side effects
  • JJa...
  • Taken for less than 1 month
  • November 22, 2019

For Dietary Supplementation "I’ve been taking this vitamin for three weeks and can honestly say that I have seen a difference in hair growth (approximately one inch). I haven’t had any side effects that some people have listed, although I have noticed that I have had stomach cramps/trapped gas every single day. I’m not sure if it is related or if I’ve picked up a slight bug/virus from my family (?). Overall, I’ve had a positive experience so far, but my concern is - what happens when you stop taking it? What will the impact be if all of a sudden my body isn’t receiving biotin at this current dosage??"

7 / 10
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49 Report
  • 60y...
  • Taken for 6 months to 1 year
  • June 11, 2022

For Dietary Supplementation "I've been taking biotin on and off for over a year now. Never really connected stomach issues with this supplement before. I was taking 5000 mcg every day, but experiencing severe diarrhea and didn't know why until my cousin mentioned her problem while taking biotin. My hair is thick and shiny, but nails are still thin and weak. I will cut down on biotin usage and see if this helps resolve my issues."

4 / 10
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6 Report
  • Mar...
  • Taken for 1 to 6 months
  • March 24, 2022

For Dietary Supplementation "Yes, it seems headaches may come with biotin. So halve the dose. It's like in the hospital when you get an infection, they give you MASSIVE doses of antibiotics to absolutely be sure to destroy everything and anything. When it has been found that half doses or less work just as well. So if you are getting headaches, stomach cramps, or feeling nauseous, just halve the dose and see. Instead of taking a pill three times a day, try it once, at lunchtime preferably. And if you are getting bald spots from rubbing in a serum, stop using the serum."

7 / 10
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4 Report

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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.