Search results for vitamin d

“Vitamin D participates in many aspects of bone health, including the aforementioned participation in calcium homeostasis. The most common form of age-related bone loss is osteoporosis, a condition characterized by low bone mass and structural deterioration of bone tissue.”

“Magnesium supports the enzymes involved in vitamin D metabolism, while vitamin K-dependent proteins help direct calcium handling. In a randomized trial, magnesium supplementation changed vitamin D metabolites in a manner that depended on baseline vitamin D status.”

“In the setting of COVID-19, vitamin D deficiency drives poor outcomes. Treating patients with calcifediol, a prescription vitamin D analog, might be more effective at increasing vitamin D to therapeutic levels.”

“Though dosage details and optimal blood levels remain unknown, the link between vitamin D and brain health is too significant to ignore. In today's email, we'll explore the importance of vitamin D for brain and body health and break down this study in more detail.”

“Vitamin D status is commonly assessed with serum 25-hydroxyvitamin D, but the same supplement dose can produce very different blood levels. In this clip from Dr. Rhonda Patrick's appearance on The Tim Ferriss Show, she describes how baseline status, body size, genetics, sun exposure, and supplement content can contribute to that variation.”

“In a cohort of 12,388 older adults without dementia at baseline, vitamin D exposure was associated with a 40% lower rate of incident dementia over ten years. The association was stronger in women and in people without the APOE4 allele.”

“Supplement studies provide additional context. In a prospective cohort of 12,388 dementia-free older adults, recorded vitamin D supplement exposure was associated with 40 percent lower dementia incidence over 10 years.”

“In this excerpt from Dr. Rhonda Patrick’s A4M LongevityFest 2023 keynote, she explains that vitamin D becomes a steroid hormone that regulates gene expression. Deficiency is common because UVB exposure, skin pigmentation, latitude, age, and indoor living change vitamin D production.”

“Bruce argues that while diseases of severe vitamin D deficiency like rickets are rare, the criteria for vitamin D deficiency should be based on long-term health biomarkers and not just short-term severe diseases.”

“The body produces vitamin D in the skin after exposure to ultraviolet light — therefore, it is not technically a vitamin. Rather it is a fat-soluble steroid hormone, similar in structure to other hormones, such as testosterone and estrogen.”