While psoriasis is a complex autoimmune disease with no single cause, several nutritional deficiencies have been linked to its severity and potential development. Research indicates that deficiencies in certain vitamins, especially vitamin D, are frequently associated with psoriasis.
Vitamin D Deficiency and Psoriasis
Numerous studies show a strong correlation between vitamin D deficiency and psoriasis. Severe psoriasis is associated with accelerated nutrient loss, particularly vitamin D, due to the rapid skin cell turnover characteristic of the disease. [62–64] Lower vitamin D levels are often linked to more severe psoriasis symptoms. [Medicalnewstoday, 2023] Vitamin D supplementation is being explored as a potential therapeutic approach. [NCBI, 2018]
Other Nutritional Deficiencies
Beyond vitamin D, other deficiencies have been implicated in psoriasis, although the causal relationship is less clear:
- Vitamin A Deficiency: Studies suggest a common occurrence of vitamin A deficiency in individuals with psoriasis, possibly contributing to disease development and severity. [Verywellhealth, 2023]
- Folate and Vitamin B12 Deficiency: Insufficiency or deficiency in these B vitamins can lead to high homocysteine levels, which some studies link to psoriasis. [Healthline, 2023]
- Selenium Deficiency: Although not as extensively studied, selenium deficiency is another potential factor associated with increased risk or severity of psoriasis. [MetaMetrics, 2019]
It's crucial to remember that these deficiencies are often associated with psoriasis, not necessarily causative. While addressing these deficiencies might improve symptoms for some individuals, it's not a cure for psoriasis. Treatment often involves a combination of therapies tailored to each patient's specific needs.
