Psoriasis is a chronic inflammatory skin disease that affects 2% to 4% of the population. Inflammatory arthritis develops in approximately 30% of patients with psoriasis and can have a major effect on activities of daily living and quality of life. Peripheral joint involvement in patients with psoriatic arthritis can be oligo articular or poly articular and can cause joint destruction. Several medications are used to treat psoriatic arthritis, and the choice of agent and the timing of administration in the course of the disease depend on disease manifestations, their severity, and prognostic factors. Therapy typically involves the sequential use of nonsteroidal anti-inflammatory drugs. Psoriasis is a chronic inflammatory disease of the skin and joints, autoimmune, and is associated with several comorbidities. The eating pattern can influence both in the prevention, treatment or its cause. This integrative review sought to understand the relation between food and psoriasis, as well as the influence and interaction of certain nutrients with it. A scientific literature survey was carried out regarding the evidence of studies on the reduction or increase in the severity of psoriasis influenced by food. It can be observed that some foods have a triggering action, such as pepper and gluten, and others collaborate for a clinical improvement, such as fish and olive oil, foods present in a Mediterranean diet. Thus, individualized nutritional care for psoriatic patients is important, so that the best nutritional management strategy can be adopted.