Does what I eat actually change my psoriasis?
People I have heard from ask whether their diet makes this worse. No diet cures it, but the National Psoriasis Foundation links some eating patterns to less severe symptoms. Its guidance is closer to a heart-healthy pattern than a psoriasis-specific one. Evidence
- Cold-water fish (salmon, trout, herring) at least twice a week, for omega-3s.
- Fruits, vegetables, whole grains, low-fat dairy, and lean meat and poultry without the skin.
- A Mediterranean-style pattern overall.
- Limit alcohol: one drink a day for women, two for men - none if psoriasis is severe.
- Limit sodium to under 1,500 mg a day.
- Limit trans and saturated fats, refined sugar, and processed food.
- A gluten-free diet only if you have confirmed gluten sensitivity or celiac disease.
Why this matters
- Sources cited, not yet graded
I compared the NPF pattern with general heart-healthy eating advice, and they overlap almost entirely. It is not a list of foods specific to psoriasis.
Considerations
- Depends on you
The source gives no number for how much following this pattern changes symptoms for one person. It says to talk with your own health care provider before starting a diet change.
Questions for your dermatologist
Would cutting back on ___ actually make a difference for my psoriasis, or is that not established?
Saving keeps this on your device and needs JavaScript, which is off in this browser.Does the sodium and alcohol guidance change for me given my other health conditions?
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Would losing weight help?
The NPF recommends gradual weight loss - about 1 to 2 pounds a week - for people with psoriasis who are overweight, using the CDC's BMI calculator to find a target. It treats this as one part of managing the disease alongside treatment, not instead of it. Evidence
Why this matters
- Sources cited, not yet graded
I checked the pace it recommends, 1 to 2 pounds a week, against general gradual-weight-loss guidance. It matches that rather than anything measured specifically in psoriasis studies.
Considerations
- Depends on you
The source does not say how much a given amount of weight loss changes symptom severity for one person. It is not medical supervision for weight loss itself.
Questions for your dermatologist
Is losing weight worth doing before or alongside starting ___?
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What about supplements - fish oil, vitamin D, glucosamine?
I read the NPF page on these three. It describes the research behind them as thin, and says none should replace medication. Evidence
- Omega-3 fatty acids: study results are "mixed"; more long-term controlled studies are needed.
- Vitamin D: research is "small and limited," and too much vitamin D can be dangerous.
- Glucosamine and chondroitin: no study has found they reduce psoriatic arthritis symptoms.
Why this matters
- Sources cited, not yet graded
All three are already common over-the-counter supplements, not experimental compounds.
Considerations
- Depends on you
The source does not quantify how any of these perform against each other or against no supplement at all. It does not check any of them against a specific medication.
Questions for your dermatologist
Is it safe to keep taking ___ alongside my psoriasis treatment?
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Evidence behind this page
Sources
Each evidence badge opens the source and its limits. The full list stays available here.
- National Psoriasis FoundationPatient education · Patient education, tier 5Independent source
- Published
- SteadySkin last checked
What this source can and cannot tell you
What this source supports
Supports that no diet cures psoriatic disease, and that eating patterns may lessen symptom severity for some people. Supports a Mediterranean-style pattern: cold-water fish at least twice a week, plus fruits, vegetables, whole grains, low-fat dairy, and lean meat and poultry without skin. Supports limiting alcohol, sodium, trans and saturated fats, and refined sugar and processed food. The alcohol limit is one drink a day for women and two for men, or none for severe psoriasis. The sodium limit is under 1,500 mg a day. Supports that a gluten-free diet is recommended only for confirmed gluten sensitivity or celiac disease. Supports gradual weight loss, about 1 to 2 pounds a week, for people who are overweight. Supports using the CDC BMI calculator to find a target weight, as one part of managing the disease. Supports that omega-3 supplement research is mixed and needs more long-term controlled studies. Supports that vitamin D research is small and limited, and that too much vitamin D can be dangerous. Supports that no study has found glucosamine or chondroitin reduce psoriatic arthritis symptoms. Supports that supplements should never replace medication, and that you should talk with your health care provider before starting any diet change.
What it does not support
Does not give an effect size for how much any food pattern, weight change, or supplement changes symptoms for a given person. Does not recommend a single named diet over another beyond referencing Mediterranean-style eating. Does not substitute for a treatment plan.
Claim-specific review for this source is still in progress. Only the source-level evidence and limits are shown here.