Search results for vitamin d

“In this FoundMyFitness interview clip, Dr. Peter Attia and Dr. Rhonda Patrick discuss how sunlight and supplements contribute to vitamin D status. They distinguish circulating 25-hydroxyvitamin D from the active hormone 1,25-dihydroxyvitamin D and explain why sun exposure also carries activity, nitric-oxide, and lifestyle signals that complicate observational comparisons.”

“Vitamin D participates in endocrine signaling and gene regulation, but supplementation does not reliably raise testosterone. In three small trials of men with normal baseline testosterone, vitamin D supplementation did not increase circulating testosterone.”

“Vitamin D3 is converted into calcitriol, a steroid hormone that binds the vitamin D receptor and changes gene expression. In this clip from Dr. Rhonda Patrick's presentation at the Vibrant Wellness Longevity Summit, she explains how limited UVB exposure, skin pigmentation, age, and higher body fat can make low vitamin D status more likely.”

“Vitamin D and respiratory tract infections Robust evidence suggests that vitamin D is protective against respiratory tract infections. Data from 25 randomized controlled trials from around the world demonstrate that daily or weekly supplementation of vitamin D reduced the risk of acute respiratory infection by more than 50 percent in people with low baseline vitamin D levels.”

“Dose and retesting must account for baseline status and clinical context. A large randomized trial found that daily vitamin D supplementation did not reduce invasive cancer, major cardiovascular events, or all-cause mortality in generally healthy older adults.”

“Nutritional status plays a critical role in aging. Emerging evidence now suggests that supplemental omega-3 fatty acids or vitamin D slow epigenetic aging. In this clip, Dr. Steve Horvath describes evidence suggesting that supplemental vitamin D or omega-3 fatty acids slow epigenetic aging.”

“The parent trial did not significantly improve its six primary outcomes, which included blood pressure, lower-extremity function, cognition, fractures, and infections. The practical use of omega-3, vitamin D, and strength training should account for baseline nutrient status, medicines, cardiovascular health, balance, and exercise capacity.”

“In a study of over 190,000 people tested for SARS-CoV-2, lower 25-hydroxyvitamin D levels were strongly associated with higher SARS-CoV-2 test positivity rates, despite race/ethnicity, age, sex, and latitude. In this clip, Dr. Roger Seheult describes the interesting similarity between COVID-19 risk factors and vitamin D deficiency risk factors.”

“In this episode, Dr. Roger Seheult and I discusses... 00:09:13 - How the two phases of COVID-19 illness require different treatment protocols. 00:22:48 - How an association between COVID-19 positivity rates and groups most affected by vitamin D deficiency exists.”

“In a 16-week trial of overweight or obese African American participants with low vitamin D, supplementation produced dose- and clock-specific changes in DNA-methylation age estimates.”