The Food Factor and Psoriasis

The Food Factor and Psoriasis

From paleo to primal many diets boast possible benefits for those who suffer with psoriasis, take caution though, currently no evidence suggests that any particular diet can cure or prevent psoriasis. At this point some anecdotal evidence exists through word of mouth that elements of these diets do help. Thus, food may be a factor in reducing the chronic inflammation associated with psoriasis.

Night shades

It is a commonly held belief that plants from the nightshade family may increase inflammation because a group of chemicals they contain called alkaloids. These foods include potatoes, tomatoes, peppers and eggplant. (1) Although some claim this reduces psoriasis flair ups, others’ have found no relief.


The common allergens found in the American diet are: tree nuts, peanuts, eggs, dairy, fish, wheat and soy. There is some evidence that these allergens are related to psoriasis but with the guidance of a dietitian you can precede through the elimination diet and determine if you react to any of these foods. (2)

Unsaturated fatty acids

Just like all the previous dietary changes listed, this one too has some evidence but is not conclusive. Some have shown reduced psoriasis patches by replacing saturated fat with unsaturated fat or supplementing with fish oil. (3)

Mediterranean, vegetarian and anti-inflammatory

There is a good body of research that has observed those with psoriasis are at a greater risk for developing cardiovascular disease. (4) For this reason, maintaining a healthy weight and good cardiovascular health with a diet reflective of the Mediterranean, vegetarian and anti-inflammatory way of eating will be heart healthy, anti-inflammatory and loaded with plant based nutrients.

Gut Health

I large part of our immune system actually resides within our gut. These beneficial bacteria play an integral role in our health. If there is an imbalance in these beneficial bacteria it can cause digestive problems, leaky gut and increase inflammation, get you gut in check. Eating a mixture of pre-biotic and pro-biotic foods can provide the right nourishment for your gut. (5)


  1. Mahan, L. K., & Raymond, J. L. (2017). Krauses food & the nutrition care process. St. Louis, MO: Elsevier.Abenavoli, L., Leggio, L., Gasbarrini, G., & Addolorato, G. (2007). Celiac disease and skin: Psoriasis association. World Journal of Gastroenterology : WJG13(14), 2138–2139.
  2. MAURICE, P.D.L., ALLEN, B.R., BARKLEY, A.S.J., COCKBILL, S.R., STAMMERS, J. and BATHER, P.C. (1987), The effects of dietary supplementation with fish oil in patients with psoriasis. British Journal of Dermatology, 117: 599–606. doi:10.1111/j.1365-
  3. Katta, R., & Desai, S. P. (2014). Diet and Dermatology: The Role of Dietary Intervention in Skin Disease. The Journal of Clinical and Aesthetic Dermatology, 7(7), 46–51.
  4. Microbiome: How your bacteria affects psoriatic disease. (n.d.). Retrieved July 03, 2017, from
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This information is not intended as a substitute for the advice provided by your physician or other healthcare professional or any information contained on or in any product label or packaging. Do not use the information from this article for diagnosing or treating a health problem or disease, or prescribing medication or other treatment. Always speak with your physician or other healthcare professional before taking any medication or nutritional, herbal or homeopathic supplement, or using any treatment for a health problem. If you have or suspect that you have a medical problem, contact your health care provider promptly. Do not disregard professional medical advice or delay in seeking professional advice because of something you have read in this article.

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