Illustration, not a product photo.
Highly porous carbon that binds many substances in the gut, including medicines.
106 owner comments (42 with a clear rating) from r/SIBO, r/IBS, r/Microbiome, November 2025 to October 2026. Top 67% of the 36 rated supplements.
Value is not rated: the example products differ too much in dose to compare cost fairly. How we score.
Activated charcoal is rated below most supplements we track: 3.7/5. Of 42 rated owner comments, 31 were positive, 3 mixed and 8 negative; 8 mention an unwanted effect. People talk most about bloating & gas and pain & cramping.
Reddit comments are self-reported and unverified. They tell you what people noticed, not whether a supplement works or is safe for you.
People also compare supplements for bloating and gas on Reddit. Reddit owners also rank supplements by cramping reports. Compare the top-rated options for antibiotics by symptom.
Supplements can interact with medicines. Talk to a doctor or pharmacist first, especially if you are pregnant, take prescription medicine, or have red-flag symptoms. See supplement safety and interactions.
| Context | Rated owner comments | Positive | Negative | Unwanted effects |
|---|---|---|---|---|
| SIBO | 32 | 25 | 5 | 4 |
| Bloating & gas | 14 | 7 | 6 | 0 |
| Pain & cramping | 8 | 3 | 4 | 1 |
| IBS-C & constipation | 5 | 2 | 3 | 1 |
| After antibiotics | 3 | 1 | 1 | 1 |
4/5“Hot coffee helps get things moving, especially if I drink a glass of water with activated charcoal beforehand.”
4/5“Did you try activated charcoal ? It helps me a bit.”
4/5“Activated charcoal helps me a bit too. Thanks!”
2/5“Activated Charcoal does nothing for me as I understand it does not help methane SIBO.”
2/5“I never got long covid like you, but I am also taking activated charcoal.”
3/5 Die-offSide effects“Activated charcoal has been an absolute lifesaver for me.”
4/5“Right, I forgot to mention that I started taking activated charcoal 2 days ago but not sure if it's helping”
4/5“My doctor did tell me to take activated charcoal (1-2 hrs away from the medicine) to bind the toxins and it did help a bit.”
4/5“I have one day left of antibiotics and I started taking activated charcoal and I’ve been feeling better since this post.”
4/5 Pain & cramping“Activated charcoal always helps me with the pain and the distention.”
4/5“I found that taking a simple binder, like activated charcoal, helped mop all of that up so I didn't feel worse while my body was clearing it out.”
4/5 Bloating & gas“What's helped me most is activated charcoal before my evening meal.”
1/5 Bloating & gasPain & cramping“Those and charcoal tablets (which absorb the gas) were absolute life savers for me post-surgery when my nether regions were too swollen to pass anything for a few days, total agony from the gas that the pain drugs didn't touch!”
4/5“Actived Charcoal pills helped me.”
4/5“I would try taking 1 capsule activated charcoal (everyone should have some in their home for emergency purposes).”
4/5“I did a 6 week course of activated charcoal to try to bind toxins as they are liberated by things like the glutathione supplement, but I stopped and am awaiting more specific instruction/prescription regarding binders from my new doc.”
4/5“I am only taking candibactan AR with an activated charcoal pill (my body can’t handle BT right now) curcumin (slowly build up).”
4/5 Pain & crampingUrgency & loose stools“My gallbladder is good and psyllium husky makes me super sick but I do take activated charcoal and it helps with the stomach ache and pain and diarrhea”
4/5“Yeah I’m using activated charcoal and it’s definitely helped!”
4/5“Worked well for me if anything I found it to make me more constipated which is common due to it being a binder containing activated charcoal.”
4/5 Cost“Free cuz I had the drink package, and helped with activated charcoal I was taking as a hangover deterrent.”
4/5“Try ginger powder with water also activated charcoal helps me at times”
4/5 Die-offSide effects“So glad it worked for you!❤️ i am gonna make a plan for starting it , and i heard the activated charcoal is good to be consumed for decreasing the die-off symptoms”
5/5 Bloating & gas“Activated Charcoal has been a life saver for me— particularly the gas and bloating.”
4/5“For me activated charcoal helped the most in 1-2 days at 500mg daily dose only.”
4/5“And I do well with activated charcoal. Usually it’s two pills and I believe they recommend taking 2 hours before or 3 hours after.”
3/5 Side effects“I started Kefir a few days ago and am definitely having some side effects, but activated charcoal helps with that.”
4/5 Bloating & gasPain & cramping“I've had luck before using activated charcoal for the pain and bloating but now it's hit or miss.”
4/5 Regularity“Prebiotic fibers, activated charcoal, and Daily Bowel Regularity helped me as well.”
2/5 Bloating & gas“I’ve also tried anti-bloating tablets, activated charcoal, and several other things, but unfortunately nothing has ever worked for me.”
4/5“I had ordered some activated charcoal but I'm seeing a few people say lgY works really well.”
4/5“I did get desperate and take some activated charcoal right after my flare up, i wouldn't say it has made it all the way better but it did help some for me.”
4/5 Stopped working“Same with more than one dose of activated charcoal (I have a sulphur intolerance as well as histamine intolerance) can’t take berberine, or B1 seems I can’t tolerate anything 😭 so it’s really hard getting better.”
4/5“But there are plenty of posts on here from people who used activated charcoal and it helped with their die off symptoms.”
4/5“I did the Amy Myers supplements (probiotic, activated charcoal, microb-cleanse) for undiagnosed gut issues and was at wits end but skeptical.”
These are examples of Activated charcoal products sold on Amazon. They are not ranked by Reddit and the score above is for the ingredient, not a specific product. Check the label for dose and other ingredients.
Published studies (we list them so you can read the evidence yourself; inclusion is not an endorsement):
Across 106 Reddit comments from people who say they have used it, 31 of 42 rated comments were positive and 8 negative, for a GutVerdict score of 3.7/5. These are self-reported experiences, not clinical evidence.
8 of 42 rated owner comments (19%) describe an unwanted effect such as gas, bloating or an upset stomach. Check the safety notes on this page and ask a doctor or pharmacist before starting.
Most rated owner comments come from people in r/SIBO and others who mention SIBO (32 comments, 25 positive).
No. The score summarizes Reddit owner comments only. Factual statements on this page link to NIH or PubMed sources, and nothing here is medical advice.
“I began to take 1 capsule before each meal together with digestive enzymes and my symptoms lessened by about 70-80% in a few weeks.”
What owners report →
“Neither psyllium nor anything else should be a sole source of fiber for anyone.”
What owners report →
“I started taking spore based probiotics lately because it's supposed to help with the health of the valve and it do believe it is helping.”
What owners report →Last updated 2026-11-03. Mentions scanned: 464 in 349 threads.