Research suggests a possible connection between vitamin D deficiency and depression symptoms. However, it’s not clear whether vitamin D supplementation can relieve these symptoms.

Researchers found that people with lower levels of this vitamin had more lesions in the white matter in their brains, which can be a warning sign of cognitive decline, dementia or stroke.

“Vitamin B12 deficiency can cause cognitive impairment, including impairments in thinking,” says Dr. Scott Kaiser, a geriatrician and director of Geriatric Cognitive Health for the Pacific ...

Vitamin D deficiency, a widespread issue affecting billions globally, stems from insufficient sunlight exposure, diet, or absorption. It particularly impacts older adults and those with darker ...

Background: Vitamin D is a steroid hormone with pleiotropic effects including immune system modulation, lung tissue remodeling, and bone health. Vitamin D deficiency has been implicated in the ...

Image credit: Annie Otzen/Getty Images. Vitamin D deficiency, especially in early life, is linked to an increased risk of autoimmune conditions, such as type 1 diabetes.

To make sure you’re filled up on the vitamin, here’s what to know about its benefits, where to find it, and signs of vitamin B12 deficiency to look for, so you know when to talk to your doctor ...