There are no official guidelines to assist in answering this question. I will search for relevant research papers instead.
From the Research
Leukonychia and Selenium Deficiency
- There is no direct evidence in the provided studies to suggest a link between leukonychia and selenium deficiency.
- However, selenium deficiency has been associated with various health issues, including autoimmune diseases 1, cardiovascular disease 2, 3, and immune dysfunction 3.
- Selenium plays a crucial role in human biology, and its deficiency can have significant consequences, including increased risk of mortality 2, 3.
- Cutaneous manifestations, including nail abnormalities, can be indicative of micronutrient deficiencies, including selenium deficiency 4.
- While the provided studies do not specifically address the relationship between leukonychia and selenium deficiency, they highlight the importance of selenium in maintaining overall health and preventing various diseases 1, 2, 5, 3.