This study, conducted by North American and European research departments, aimed to assess the association between vitamin D levels and multiple sclerosis (MS) development. In MS, the body mistakenly attacks the protective layer around the nerves in the brain and spinal cord. These damaged areas are called lesions. Low vitamin D levels have been found to increase the risk of MS as well as the occurrence of new symptoms and the rate of disease progression. During the study, 1482 MS patients were monitored for at least 2 years, and clinical visits took place every 3 months. An increase in vitamin D levels (50 nmol/L) was associated with a 31% lower rate of new lesions, and the lowest rate of new lesions was observed in patients with high levels of vitamin D in the blood (> 100 nmol/L). More details can be found in the study.
Fitzgerald et al.