Search results for vitamin a

“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.”

“FTA:A vitamin D-derivative makes tumors vulnerable to chemotherapy, a new study shows. By attacking a wound repair mechanism called fibrosis, the findings may also have implications for other tough-to-treat tumors, such as lung, kidney and liver cancer, researchers report.”

“Vitamin C plays a critical role in immune function. Vitamin C is highly concentrated in immune cells, where it serves as a potent antioxidant. Vitamin C also boosts the immune system by promoting the proliferation of T cells and preventing T cell death.”

“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.”

“In the context of COVID-19, a large associative study suggested that lower 25-hydroxyvitamin D are strongly associated with higher SARS-CoV-2 test positivity rates. In this clip, Dr. Roger Seheult and Dr. Rhonda Patrick discuss how to assess vitamin D requirements and its toxicity potential.”

“When cells run out of a vitamin or mineral, that scarce micronutrient is allotted to proteins (in the body) essential for short-term survival. Proteins needed for long-term health, including those that protect DNA, lose out and become disabled and lead to diseases of aging.”

“However, a sham beverages containing fiber, minerals, or vitamins and minerals had no significant effect on flow-mediated dilation. Twice daily wild blueberry consumption for one month also increased long-term flow-mediated dilation.”

“Insulin resistance fell with the combined strategy versus control and vitamin D alone; both single interventions also beat control. Fasting glucose decreased with the combined approach compared with control.”

“"Our results suggest that cancers with low levels of catalase are likely to be the most responsive to high-dose vitamin C therapy, whereas cancers with relatively high levels of catalase may be the least responsive," he explains.”

“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.”