Anti-Inflammatory Foods for Psoriasis: The Evidence-Based List

"Eat anti-inflammatory foods" is common advice for psoriasis, but it's worth being specific about which foods actually have research behind them versus which are included by general association. Here's an honest breakdown.

Foods With the Strongest Supporting Evidence

Foods Central to the Mediterranean Diet

Extra virgin olive oil, vegetables, whole grains, legumes, and fish form the core of the Mediterranean diet pattern, which has genuine randomized controlled trial support for psoriasis specifically — the 2025 MEDIPSO trial found meaningful PASI improvement in patients following this pattern. See our full diet evidence review for the details.

High-Fiber, Complex Carbohydrate Foods

Whole grains, legumes, and vegetables high in fiber and starch were associated with reduced psoriasis risk in a large UK Biobank cohort study — see our full article on sugar and psoriasis for the details on this research.

Turmeric

Turmeric's curcumin has multiple positive randomized controlled trials specifically for psoriasis (see our full turmeric evidence review), making it one of the better-evidenced individual foods/spices for this specific condition.

Foods With Plausible but Less Direct Evidence

Fatty Fish (Salmon, Mackerel, Sardines)

Rich in omega-3 fatty acids, which have general anti-inflammatory properties — though it's worth noting that fish oil supplements specifically haven't shown clear psoriasis-specific benefit in the best available meta-analysis (see our full omega-3 review). Whole-food fish consumption within a broader dietary pattern is a different, less directly studied question.

Colorful Fruits and Vegetables

Rich in antioxidants and generally associated with lower inflammation in broad nutritional research, though dedicated psoriasis-specific trials on individual fruits and vegetables are limited.

Nuts and Seeds

Good sources of healthy fats and fiber, fitting within the broader Mediterranean and high-fiber patterns that do have psoriasis-specific support.

Foods Worth Limiting, Based on the Evidence

• Foods high in free sugar and sucrose — genuine cohort study evidence links higher intake to increased psoriasis risk
• Ultra-processed foods generally — tend to be simultaneously high in sugar, low in fiber, and associated with the inflammatory patterns discussed above
• Excess alcohol — meaningful research connects heavy drinking specifically to worse treatment response (see our full alcohol article)

Building a Practical Approach

Rather than chasing an exhaustive list of individually "approved" and "banned" foods, the strongest evidence points toward an overall dietary pattern: Mediterranean-style eating, high in fiber and complex carbohydrates, lower in free sugar and heavily processed food. This is more sustainable and better supported than obsessing over any single ingredient.

Frequently Asked Questions

Do I need to eliminate all sugar to see benefits?

The research shows a dose-response relationship, meaning reduction — not necessarily complete elimination — is likely to matter, based on the available cohort data.

Is there one single "best" anti-inflammatory food for psoriasis?

Turmeric currently has the strongest individual-ingredient clinical trial evidence, but overall dietary pattern (Mediterranean-style, high-fiber) has stronger population-level evidence than any single food.

Next Steps

For the complete evidence-graded picture, see our full diet evidence review.

This article is for general educational purposes and is not a substitute for professional medical or nutritional advice.