Claims this site has decided the evidence does not support. Published because what a source refuses to claim is worth knowing.
Omega-3/fatty fish specifically improves psoriasis
Our rule: Fatty fish may be recommended as part of the broader Mediterranean-style pattern, but no recipe/ingredient may be said to treat psoriasis because it contains omega-3.
Sources: Efficacy of fish oil and its components in the management of psoriasis: a systematic review of 18 randomized controlled trials
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-008
High fibre improves psoriasis
Our rule: Fibre may be described nutritionally and plant foods may be used within the Mediterranean pattern, but current psoriasis-specific evidence is observational and does not establish that increasing fibre improves psoriasis.
Sources: APPLE diet-quality and macronutrient studies in psoriasis
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-009
Specific foods reduce systemic inflammation in psoriasis
Our rule: Do not translate general nutrient biology into a psoriasis treatment promise for individual foods or recipes.
Sources: Mediterranean Diet and Patients With Psoriasis: The MEDIPSO Randomized Clinical Trial · Efficacy of fish oil and its components in the management of psoriasis: a systematic review of 18 randomized controlled trials · Effectiveness of oral vitamin D supplementation in lessening disease severity among patients with psoriasis: A systematic review and meta-analysis of randomized controlled trials
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-010
Cookbook cures psoriasis
Our rule: Never use.
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-011
Food replaces medication
Our rule: Never use.
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-012
Universal nightshade avoidance
Our rule: Never present as a psoriasis rule.
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-013
Universal dairy avoidance
Our rule: Never present as a psoriasis rule without evidence/individual indication.
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-014
Detox/cleanse removes psoriasis toxins
Our rule: Never use as medical mechanism.
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-015
Alkalising the body treats psoriasis
Our rule: Never use as medical mechanism.
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-016
Leaky gut is the established cause of psoriasis
Our rule: Never state as established fact.
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-017
Recipe-level treatment outcome
Our rule: No recipe may claim it "reduces flares", "heals skin", "fights psoriasis", or equivalent.
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-018
Vitamin-D-rich foods improve psoriasis
Our rule: Do not infer oral dietary treatment benefit from topical vitamin-D medicines or serum associations.
Sources: Effectiveness of oral vitamin D supplementation in lessening disease severity among patients with psoriasis: A systematic review and meta-analysis of randomized controlled trials
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-019
Dairy universally worsens psoriasis
Our rule: Patient reports do not establish a universal causal trigger.
Sources: Dietary Behaviors in Psoriasis: Patient-Reported Outcomes from a U.S. National Survey
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-021
Tomatoes/nightshades universally worsen psoriasis
Our rule: Patient reports do not establish a universal causal trigger; Mediterranean psoriasis evidence includes a pattern that can contain nightshades.
Sources: Mediterranean Diet and Patients With Psoriasis: The MEDIPSO Randomized Clinical Trial · Dietary Behaviors in Psoriasis: Patient-Reported Outcomes from a U.S. National Survey
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-022
Ketogenic diet or intermittent fasting is an established preferred psoriasis diet
Our rule: Do not market keto, fasting, or time-restricted eating as proven superior psoriasis treatment. Existing studies are heterogeneous, frequently confounded by weight loss, and not needed for this book's product promise.
Sources: Nutrition and Psoriasis: The Latest Evidence and How to Approach Nutrition in Clinical Practice
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-025
Probiotic foods, yoghurt, fermented foods or a cookbook recipe can be claimed to treat psoriasis or reset the gut microbiome.
Our rule: Supplement trials cannot be transferred to ordinary foods or recipe-level treatment claims; microbiome studies are heterogeneous and causality is not established.
Sources: The efficacy and safety of probiotics in the adjuvant treatment of psoriasis: a systematic review and meta-analysis of randomized controlled trials · The Effectiveness of Probiotics in Psoriasis: An Umbrella Review · Characterization of the Gut Microbiota in Patients with Psoriasis: A Systematic Review
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-028
Cooking with turmeric or eating a turmeric-containing recipe treats psoriasis.
Our rule: Supplement and formulation trials cannot be transferred to ordinary culinary turmeric, and no recipe may inherit a psoriasis outcome from curcumin research.
Sources: Effectiveness and safety of dietary supplements in the adjunctive treatment of psoriasis: a systematic review and network meta-analysis · Curcumin nanoparticles potentiate therapeutic effectiveness of acitrein in moderate-to-severe psoriasis patients and control serum cholesterol levels
Cite this claim: https://cernere.xyz/conditions/psoriasis/evidence/#ps-clm-033
