You may wonder if your psoriasis will get better if you stick to a gluten-free diet. Although you may hear about success stories from others who have tried it, so far studies aren't clear that it helps. That said, this kind of eating plan is useful if you have celiac disease, which, like psoriasis, is an autoimmune disease. Research suggests that people with psoriasis are more likely to also have another autoimmune disease.
If you go gluten-free, it means you have to cut out foods that have grains like wheat, barley, and rye. The downside is that those foods are also heart-healthy -- and psoriasis raises your chance of getting heart disease. Talk to your doctor before you make any changes in the food you eat.