Blastocystis Hominis 6-Week Eradication-Support Protocol
Blastocystis hominis is the most common protozoan parasite found in human stool worldwide, present in 10 to 50 percent of people in developed countries. Its clinical relevance is debated. Some subtypes (there are at least 17, ST1 through ST17) are associated with IBS, urticaria, and chronic GI symptoms. Others appear to be commensal. A positive stool test means colonization is present but does not by itself prove that Blastocystis is causing symptoms. This protocol is designed for symptomatic patients who have decided to pursue treatment, ideally alongside clinician oversight. Phase 1 starts sustained garlic allicin and oil of oregano, the two herbal antimicrobials with the most published evidence against Blastocystis. Phase 2 adds biofilm disruptors for entrenched cases. Phase 3 rebuilds the commensal community with specific strains shown to compete against Blastocystis.
Who this protocol is for
Symptomatic adults with positive Blastocystis hominis on a stool PCR, especially those with chronic IBS-like symptoms, urticaria (hives), or unexplained skin flares. Asymptomatic carriers may not need treatment at all.
What to expect, week by week
- 1 Week 1 to 2: Possible die-off symptoms (headache, fatigue, mild flu-like) for 5 to 10 days.
- 2 Week 3 to 4: Bloating and irregular stools start to settle.
- 3 Week 5 to 6: Skin (if affected) often clears noticeably.
- 4 Retest at 12 weeks. Blastocystis can persist below detection threshold and rebound.
The 6-week food plan
Built from the protocol for Blastocystis hominis, the primary marker behind this condition. Phase 1 is partially visible. The full plan with exact quantities unlocks when you upload your stool test PDF.
- Garlic (fresh, crushed) See your personalized dose
- Oregano oil capsules See your personalized dose
Unlock the full personalized version
This is the off-the-shelf protocol for Blastocystis protocol. Upload your stool test PDF and we will build the version that handles your specific marker pattern (most people have 4 to 7 abnormal markers, not just one), with conflicts resolved and a grocery list ready to send to Instacart or Kroger.
Upload my lab PDFThe markers behind this protocol
The primary driver is Blastocystis hominis. Click through for what the result means in detail. Supporting markers below often co-occur and inform the full protocol.
Common mistakes practitioners see
- Treating asymptomatic Blastocystis. Many people carry it without harm.
- Stopping antimicrobials at the first sign of improvement. Incomplete courses select for resistance.
- Skipping biofilm disruption in chronic cases. Blastocystis forms biofilms that protect it from antimicrobials.
- Not addressing the immune state that allowed Blastocystis to colonize symptomatically (often low sIgA).
When to escalate
- Severe diarrhea with blood or mucus.
- Persistent fever.
- Significant unintended weight loss.
- Symptoms that worsen rather than improve after 4 weeks of protocol.
These signs mean stop the protocol and see a clinician. The protocol is not designed to manage acute or severe disease.