Yes yes yes,, food definitely affects psoriasis,, I’ve had it 35 years argued with doctors for most of that time about food affecting me.. Then a refactoring celiac diagnosis 18 years ago.. no gluten for me ,
however sugar affects flare up most of all,
Celery juice help with the internal inflammation.

I have found fish oil or krill oil helps with inflammation

I am down only eating gluten once a week. Cooking with turmeric helps, as does ginger, garlic. Pineapple has a natural enzyme that helps with inflammation.

Can you enlighten me on what a refactoring celiac is as I find sugar affects me