How to Treat the Root Cause of Psoriasis: The Gut Microbiome
What if psoriasis doesn’t start in your skin — but in your gut?
What this episode covers
- Psoriasis may start in your gut, not your skin.
- The inflammation that shows up as plaques may really be coming from what is happening inside your body.
- Triggers like gluten, infections, or mold may play a role in some cases.
Why it matters
If the real cause is inside your body, treating only your skin may never give you lasting results. The same inflammation may also affect your heart and your mood, so it is not just a skin issue.
What stands out
- Some reports suggest that cutting gluten helps about half of psoriasis patients while the other half see no change, so the response varies widely from person to person (large patient survey cited in episode)
- Clinical observations show that small drop-shaped psoriasis flares often follow a strep throat infection by 1 to 3 weeks, yet standard care rarely tests for it (clinical observation + case series)
- The world spends over $21 billion a year on one psoriasis drug (Humira), yet few patients get tested for the triggers that may be driving their flares (industry sales data)
One key action from this episode
Run a 60-day elimination of gluten and track your skin weekly (0–10 scale)
What to do
Actions discussed in this episode. This is what one expert recommends — the full topic compares and ranks across experts.
- Order a comprehensive stool test and a urinary mold toxin test once, before you start or change any biologic, to get a clear baseline of what is happening inside.
- Run a strict 60-day elimination of gluten, dairy, and added sugar, then add one category back every 4 days and photograph your skin weekly.
- If your flares follow throat infections, ask your doctor for strep antibody tests (ASO and anti-DNase B, which check for hidden strep) within 30 days of your next flare.
Full context, impact ratings, and timing — available in related topics
Questions to take to your doctor
- Could my gut health be contributing to my psoriasis flare-ups?
- Would it make sense to test for leaky gut (when the gut lining lets things through that shouldn't) before we change my treatment plan?
- If my flares follow throat infections, could we check for hidden strep with an ASO blood test (it looks for signs of a past or ongoing strep infection)?
Full doctor prep with ranked questions available in the full topic page
Context
The expert emphasizes translating research into actionable steps, focusing on what the evidence actually supports versus common assumptions.
This is not settled science yet. It is based on one doctor's clinical cases, not large trials. This does not mean you should change or stop your current psoriasis treatment on your own.
Where people go wrong
- Treating psoriasis as only a skin problem and ignoring the inflammation inside the bodyHeart and metabolic risks may keep climbing while only the skin surface gets managed
- Starting biologics without first checking for gut, infection, or environmental triggersYou may end up on long-term medication for a problem that had a removable trigger
What to expect over time
- Weeks 1–4Itch and inflammation often calm first as gut and dietary triggers are removed.
- Months 2–4Plaque thickness and turnover may begin to slow if real triggers were identified.
- Months 6–12Sustained clearance is possible for some patients, while others still need biologic support.