Medical disclaimer: GutVerdict summarizes what people say about supplements on Reddit. It is not medical advice, and nothing here is meant to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration. Talk to your doctor or pharmacist before starting a supplement, especially if you are pregnant, take medicines, or have a medical condition. New, severe or worsening symptoms (such as blood in the stool, weight loss, fever, or night-time symptoms) need a doctor, not a supplement. Full disclaimer.

Berberine vs Oregano oil

On Reddit, owners rate Oregano oil higher overall (3.8 vs 3.6). Scores summarize self-reported experiences and are not evidence that either will work for you.

	Berberine	Oregano oil
Type	capsules	softgels or liquid
GutVerdict score	3.6	3.8
Owner sentiment	3.3	3.3
Recommendations	3.0	3.4
Tolerability	4.5	4.7
Owner comments	569	494
Rated comments	197	186
Unwanted effects reported	18%	11%
Top praise	Dose & timing, Bloating & gas	Dose & timing, Bloating & gas
Top complaints	Side effects, Dose & timing	Side effects, Bloating & gas

By symptom

Context	Berberine	Oregano oil
IBS-C & constipation	16 of 25 positive	16 of 22 positive
IBS-D & loose stools	5 of 11 positive	8 of 16 positive
Bloating & gas	29 of 41 positive	22 of 35 positive
SIBO	107 of 170 positive	109 of 163 positive
After antibiotics	19 of 26 positive	22 of 30 positive
Pain & cramping	16 of 26 positive	10 of 17 positive

Our safety notes for gut supplements cite NIH sources. Still comparing? Browse every gut supplement we track, sorted by Reddit owner score. For quick shortlists by symptom, see which gut supplements IBS communities rate highest.

What owners say about Berberine

2/5 Side effectsUrgency & loose stools
“I had giardia which gave me post infectious Ibs for years until I took berberine because it was supposed to help with weight loss.”

owner comment via r/IBS · 2026-05-06 · 21 upvotes

2/5 Bloating & gas
““What brand of berberine?? I’ve tried two and one bloated me so bad””

owner comment via r/SIBO · 2026-03-03 · 18 upvotes

4/5
“My psychiatrist/medicine manager actually recommended I try berberine, which is a plant based supplement derived from traditional chinese medicine.”

owner comment via r/IBS · 2026-11-01 · 16 upvotes

Full Berberine page →

What owners say about Oregano oil

2/5
“Yes so I started off taking oil of oregano.”

owner comment via r/Microbiome · 2026-06-20 · 16 upvotes

1/5 Pain & cramping
“I also tried oregano oil by the brand NOW!”

owner comment via r/SIBO · 2025-12-04 · 20 upvotes

4/5 Bloating & gasFast-acting
“Betaine HCl and oil of oregano worked like a magic for me immediately… when I say immediately I mean I felt the relief instantly… I’m not sure if it was 1 or the other or combination of both but my belly was bloating like a ballon after…”

owner comment via r/SIBO · 2026-10-14 · 4 upvotes

Full Oregano oil page →

More detail: Berberine side effects · Berberine dosage and timing · Oregano oil side effects

Talk to a doctor or pharmacist before switching or combining supplements, particularly if you take other medicines.