I wrote my thesis on H2S .... for grad school in petroleum engineering. We deal with 'One breath - one death' levels of H2S. I see how the YT algorithm brought me here.

The disparity in the two observations on whether H2S leads to diarrhea or constipation arises from the fact that H2S induces loose stools that move at a slower pace than usual. Typically, constipation is linked to hard stools rather than loose ones.

I cannot thank you enough for this video series on H2S SIBO. It is such an unexplored topic, so to have you really go into depth on all the mechanisms is highly appreciated! :)

Dang, you nailed it. We have all of the above sensory sensitivities, three kids diagnosed with autism level 1. I’ve had H pylori from when I grew up in Ukraine, I went grey at 25, which I always thought was due to hydrogen overgrowth. I’ve managed it for over 40 years till Covid messed even up and put me into menopause. Now I have to figure out what to eat, but yeah, you are on to something, thank you! I will be following.

Thank you…solid information. We took a viome test and had no idea what the results actually meant. Your video brought clarity and some direction. Thanks again🙏🏼🙏🏼

My mind is blown you are an absolute Rockstar

I can’t seem to find the next video you mentioned

Thx again, look forward to follow up. Tried your suggestion to eat sulfur veggies like broccoli and cauliflower, seems to be going good.

This is a awesome breakdown! A couple things to add maybe? Watching some updates with pimmentel group and dr. Nigh h2s looks like an adaptation to some type of sulfate deficiency. I have the dizzy brain fog unsteady version (like I been on a roller coaster) no tingly, but lots of smelly gas and of course ribflaxmin worked for like 10 days and it came back (x3) My Gi map is pretty classic Sibo both times without any changes: kleb, strep, ecoli. High on the breath tests. Black stools when I take bismuth.

Found you through Reddit and I am so happy about it. I am writing to u from Norway. I have very recently been diagnosed with h. Pylori and I suspect sibo is there too. Do u give online consultations by any chance?

Hi Doc...you mentioned the discrepancies between H2S leading to diarrhea or constipation. One of the primary ways that endogenously produced H2S is generated is by the microbiome through the sulphur-fixing bacteria (SFB) action. As with methane (CH4) production, H2S production is a means of trapping molecular hydrogen (H2) produced upstream. So SFB uses 5 molecules of H2 to produce 1 molecule of H2S, and the methanogens (methane-producing archaea) use 4 molecules of H2 to make 1 molecule of methane. So they compete for the H2. This is ok because this way, the methanogens and the SFB maintain a functional balance with the H2 producers while simultaneously supplying the body with a crucial gasotransmitter, H2S. Ok, now, the SFB has a substantially stronger affinity for molecular H2 than the methanogens, which means that H2S is more likely to be produced than CH4. All these gas-producing creatures need to be in our bodies, but at levels that benefit our physiology. Ok, so here's the scoop...individuals with excess H2S (proven by symptoms and a good doctor) have the propensity to have diarrhea, but less commonly, constipation, but sometimes, neither. There's a tendency to see constipation in methane producers because methane interferes negatively with the MMC (powerful muscular movement downwards of the GI tract). I hope this makes sense. The problem with H2S is that most health practitioners treating SIBO are now all over eliminating H2S. But this is a big mistake because we NEED it for many physiological functions. An excess of H2S will cause 1 or more symptoms you have discussed. But most importantly, the cause(s) of SIBO need to be identified and addressed first and foremost. 👍 Great job, by the way! 🤜🤛

Wonderful video!, ty! I have the bladder issues, oxalates, salycalate and histamine issues and had no idea it was related! I get so dizzy when my bladder is full too....question though. I have tried taking coq10 and can’t take it as it makes me super dizzy. Any idea why?.

Thank you so much for your videos! Do you recommend specific prebiotics if you currently aren't eating fiber and bloat easily?

Me me all my life! And we can finally connect the dots THANKS!

you the GOAT

Can you, or have you already done any videos on oxalates issues? I need help with that! 😊 Thank you so much for all your amazing information ❤️

This video is awesome !!! Do you know any Dr specialized in SIBO h2s in Spain/Europe ? I will love to have an appointment with you, but health rates in US are very different from Spain and unfortunately difficult for me to pay for it... I will appreciate very much your help, as I'm feeling VERY VERY BAD, and can't have a normal life. Thank you so much.

What would your recommendation be if I've gone to my doctor and he did tests for ulcers, an endoscopy with biopsy and gallbladder scans and everything came back negative? All he did was say wait two months and kept me on protonix and karafate (which haven't helped) I've read a lot and think sibo could be a cause of my painful bloating symptoms. Should I just suggest it to him as a possibility? What should I expect him to do next if he thought that was behind my issues?

So for sibo do I take the Priority One Biofilms Phase 2 AND North American Herb and Spice OregaRSP ? Or either or?

Hi Dr DiNezza, thx for the valuable info, Hydrogen Sulfide is mitochondrial poison, but is there a connection between H2S produced in the gut affecting the brain? Or just a reduction in mitochondria in the gut can be enough to cause this overall body fatigue?

I was diagnosed a year ago with h.pylori which I did triple therapy twice for it,later went for endoscopy and nothing was found but still since then I keep having stomach churning,so much movement of gas,I feel all movement and gas in my stomach.... recently now started getting sulfur burps alot...I suspect SIbo now...please can you suggest some herbal treatment for the gas issues and atleast till I get tested please?

You are genius, I use enemas for probiotics?? Can you list the name you suggest ! I am having L. acidophilus and BB-12

Can you have h pylori in the duodenum if you don’t have it in the stomach

What sink type would be dominant in someone without a colon due to having an ileostomy? I am prone to intestinal blockages, extreme bloating, bad reflux, malabsorption, slow transit, poor digestion despite high dose enzymes, bad skin, indigestion and burping, etc. would taking xifaxmin be helpful in a case like mine? I worry abt taking that but natural sources and strict diet hasn’t eliminated it

Hello Doc, Could you please point out who's the Australian naturopath that was working on the H2S constipation relation? What are your thoughts on Jarrow Formulas, Ideal Bowel Support LB299V for the H2S producing SIBO? Also, these: Bio Gaia Osfortis Reuteri PTA 6475 for constipated SIBO sufferers Latero Flora by Global Health for gas, bloating, and flare + inflammation I don't know if you went through strain-specific reviews and info videos? that would be amazing. I have anti-resistance gene from antibiotics overuse since I was a child and I have struggled a lot with bloating, gas, severe constipation, horrible slow motility (only one meal a day), and allergic reactions to most if not all food. my GI MAP is complete chaos As always top-notch videos.

I’m testing high H2S and definitely see constipation and not diarrhea

I have Citrobacter which can also produce hydrogen sulfide. I have no growth of lactobacillus. A lot of bloating and constipation but sometimes diarrhea. The Citrobacter are only susceptible to grapefruit seed extract, UVAURSI The inquired silver based on the great planes comprehensive stool analysis test. I highly recommend the stool analysis from great Plains lab. It literally is saving my life thank you Lord Jesus. I was dying. Grapefruit seed extract and lactobacillus probiotics really helped but I Relapse because I didn’t take it for a few days because I was feeling better and I had a cheesesteak and some ice cream. Whatever you do take it for at least a month and don’t be like me and stop I need a cheesesteak

Good morning from Spain Dr DiNezza. My actual symtoms are : yellow stools, lumbar pain and, anal and muscular pain and headache. Are compatible with sulfure hidrogen SIBO? Sorry for my bad English 😅

Hi can you please suggest some herbs which will cure sibo without irritating the stomach lining... As i cant take very strong herbs due to gastritis.... But i have severe bloating....

Can H2S cause oily greasy stools?

I had sibo treatment, hydrogen dominant and methane positive. After the first antibiotic the hydrogen disappeared but the methane remained. After the second antibiotic, my symptoms decreased but did not completely faded out, 6 months later I had a sibo test but it was negative. Now I'm wondering if it's hydrogen sulfide. I have extreme tenderness in my lower abdomen, the pain is not always there, but the bloating happens even when I eat the slightest thing. I also have a symptom, for example, every time I get cold on my feet, my stomach swells like it's going to explode with pain. Could this be an indicator too?

Dear Dr. DiNezza, first of all thank you for your very interesting videos. I noticed in this video, you talk at the 4:45 min. mark that you either have too many mast cells or mast cells that are too active in visceral hypersensitivity. Too many mast cells or too mast cells that are too active is an important marker in the diagnosis of "MCAS" - mast cell activiation syndrome. Do I understand you correctly that visceral hypersensitivity only occurs in Hydrogen Sulfide Sibo, not in Hydrogen or Methane SIBO? That would mean that mast cell activation syndrome could be linked to Hydrogen Sulfide SIBO. I think that would be a VERY important fact for those docs that try to cure MCAS. Do you have any links of the research you talked about regarding the visceral hypersensitivity and the mast cells that I could give to my doctor? Best regards Stefan

Do you have a butyrate supplement you recommend? Is trybutyrate the same?

If farts smell strongly of H2S within 20 minutes of eating sulfurous foods, is it reasonable to conclude H2S bacterial levels are abnormally high?

Is it common for H2S sibo to cause feeling of being poisoned? I wake up in the middle of the night and feel disoriented, poisoned and it goes away only after I pass gas. Then the same thing happens in the morning. If I go long hours without eating then I don't have the poisonous feeling. It clearly stems from my GI area, accompanied with gas, belching, nausea and so on. Feels like the gas is reaching my brain.

How about extreme itching/tingling?

Do you find that sensitive people with mast cell can tolerate butyrate??? I react to most supplements. But nothing is working I’ve been stuck on carnivore 2 years

Does anyone have nausea and bloating after a bowel movement with H2S Sibo?

Thos video is better

a little slow explanaion to get direct to the point

Have you ever seen a patient whose visceral hypersensitivity was only activated with vitamin D3? The internet makes me think vitamin D supplements should help with IBS-D symptoms, but it sends me reeling, even at small doses now... which is also difficult because I had foot fusion surgery so I need the vitamin D... what a life. (Now I know why people share their life stories on youtube comments... it just comes pouring out, lol.)

H2S and propionate fatty acid come from the same bacteria.

I though constipation is a form of diarrhea!

This is all so confusing. Way to complicated for the average bear to work out and diagnose him or herself. Great channel though.

i couldn't wait to give a thumbs down to this B