I have had psoriasis since I was a child, very fortunately it got better with time and I was psoriasis free for years. It came back 2 years ago, when I switched a low carb diet (followed for years) to higher carb, I went from eating lot if veggies and few fruits and very occasional starches, to eating very little veggies, much more fruit, some starches and milk. Before low carbing I drinked milk too and my psoriasis cleared, so I suppose it is not the "culprit", can the sugars be the "culprits"? Any idea about where to look at?