Psoriasis: The Evidence-Based Supplement Protocol

← Back to articles

Psoriasis is an immune-mediated inflammatory skin disease driven by IL-17/IL-23 pathway activation. Topical corticosteroids, topical vitamin D analogues (calcipotriol), phototherapy, methotrexate, and biologics (TNF-α, IL-17, IL-23 inhibitors) remain primary. Supplements have a modest role as adjuncts targeting the inflammatory and oxidative-stress components.

Vitamin D — Repletion to 30–50 ng/mL

Vitamin D deficiency is common in psoriasis cohorts. The hormone modulates Th17 differentiation — directly relevant to psoriasis pathogenesis. Topical vitamin D analogues (calcipotriol, calcitriol) are evidence-based topical therapy. Oral repletion in deficient adults modestly reduces PASI scores. See vitamin D piece.

EPA-Dominant Omega-3, 2–4 g Daily

A 2014 meta-analysis of 15 RCTs concluded omega-3 modestly reduced PASI scores and erythema-induration-desquamation. Effect smaller than topical or systemic therapy but additive. See omega-3 inflammation context.

Bioavailable Curcumin, 500 mg Twice Daily

Curcumin inhibits NF-κB and modulates IL-17 production. Small RCTs in psoriasis have shown PASI reductions when added to topical therapy. Use bioavailable form. See curcumin piece.

Selenium — Repletion in Deficiency Only

Psoriasis cohorts have lower mean serum selenium than controls. Repletion modestly reduces inflammation in deficient adults. Cap at 200 mcg/day; chronic high selenium has its own toxicity.

What NOT to Take

Avoid "psoriasis cleanse" formulas. Skip megadose biotin — interferes with thyroid lab assays and has no psoriasis evidence. Avoid evening primrose oil — null trial data. Don't replace biologic or methotrexate therapy with supplements alone in moderate-severe disease.

How to Run the Protocol

Topical corticosteroid + topical vitamin D analogue + emollients foundation. Phototherapy or biologic for moderate-severe disease. Test 25-OH-D and selenium. Layer omega-3 2 g + bioavailable curcumin 1 g daily. Add vitamin D and selenium to repletion. Smoking cessation and weight loss reduce psoriasis severity independent of any pharmacology. See condition page.