Here’s a list of foods to avoid in case of psoriasis!

Verified on 08/11/2023 by PasseportSanté
Voici la liste des aliments à éviter en cas de psoriasis !

A chronic, inflammatory skin disease linked to immune system dysfunction, psoriasis is characterized by large red patches and scales. Although there is no specific diet to alleviate its effects, studies have shown the positive action of certain foods.

Psoriasis is a chronic inflammatory skin disease that manifests itself as red patches often covered with a white film. Affecting elbows, knees, scalp and buttocks, psoriasis is found in many different parts of the body. Although it has often been associated with stress, no scientific study has actually confirmed this link. On the other hand, studies have highlighted the benefits of certain foods. So which foods should you choose to reduce inflammation? We take stock!


If you suffer from psoriasis, it’s best to limit your intake of gluten, found in white bread and pastries, as well as in pasta, barley, malt, wheat and certain processed products. In general, refined carbohydrates should be avoided, as they raise blood sugar levels, which worsens the effects of psoriasis.

Vegetables in the Solanaceae family

Avoid acidifying foods as much as possible. This is the case with this category of vegetables (tomatoes, eggplants, peppers, potatoes), which impair digestion and cause inflammation, among other things.

Red meats

Overall, reduce your intake of foods rich in saturated fats, such as fatty meats, red meats and processed meats (cold cuts). They activate inflammation and intensify the severity of psoriasis.

Citrus fruit

Lemons, mandarins, oranges and grapefruit are all allergenic foods that can trigger a flare-up of psoriasis.


If you suffer from psoriasis, it’s advisable to avoid alcoholic beverages. Not only do they lower your levels of selenium, a trace element that plays a key role in the body’s health, but they also boost the formation of keratinocytes, the skin cells. And a person suffering from this disease tends to already overproduce them due to immune dysregulation.

Dairy products

Yoghurt, butter, milk, cheese and animal milk products all promote inflammation. Inflammatory foods should be limited in the case of psoriasis.

Vegetable oils

Watch your consumption of vegetable oils. Because of their high omega-6 content, sunflower, soy and grapeseed oils are not recommended. In fact, foods containing high levels of omega-6 provoke inflammation and hinder the benefits of omega-3.