Written by Taylor Woosley, Staff Writer. Higher dietary vitamin A, total carotenoids, and selenium intake were associated with decreased risk of PSD (p < 0.05) after adjusting for potential confounders. Stroke has become a serious issue in the United States, as...
Vitamin A Intake and Squamous Cell Carcinoma: Is there an Association?
Written by Joyce Smith, BS. This study found an inverse association between vitamin A and carotenoid intake and risk of squamous cell carcinoma of the skin. The greatest risk factors for squamous cell carcinoma (SSC) of the skin are age, fair skin and ultraviolet...
Topical Retinyl Palmitate May Increase Risk of Ultraviolet Radiation-Induced Skin Cancer
Written by Angeline A. De Leon, Staff Writer. Compared to the control cream groups, mice who were exposed to SSL and were administered the retinyl palmitate creams developed skin tumors earlier and had increased incidences of multiple squamous cell skin neoplasms....
Blue Light Excited Retinal Disrupts Cellular Signaling
Written by Angeline A. De Leon, Staff Writer. This study demonstrates how retinal-generated toxicity by blue light irreversibly damages retinal cells of the eye which may contribute to earlier onset of age-related macular degeneration. Retinal is a photosensitive...
Megadose of Vitamin A Lowers Vitamin E in Colostrum
Written by Jessica Patella, ND. Participating mothers, who received 200,000 IU injections of Vitamin A just 24 hours postpartum, had a significant 134 % Vitamin A increase in colostrum and a 16.4 % decrease in Vitamin E. Researchers suggested that Vitamin E be added...
Vitamin A Improves Thyroid Function in Premenopausal Women
Written by Greg Arnold, DC, CSCS. In this study of 84 healthy premenopausal women (aged 17 – 50), those who took 25000 IU of Vitamin A daily for 4 months decreased their thyroid stimulating hormones to normal levels compared to placebo. Researchers suggested that...
Vitamin A May Benefit Immune System Strength In Obese Women
Written by Greg Arnold, DC, CSCS. Obese individuals receiving 25000IU of vitamin A experienced a 31% and a 17.4% decrease in a marker of diabetes and cardiovascular risk, respectively. By the year 2018, obesity is expected to cost our healthcare system $344 billion...
High Levels of Vitamin A are Important for Cystic Fibrosis
Written by Tatjana Djakovic, Staff Writer. In a study of 98 cystic fibrosis patients, those with the highest percentile of retinol intake were associated with a significant improvement of lung health. Chronic respiratory infections in cystic fibrosis (CF) patients are...
Vitamin A Intake Linked to Skin Health in Women
Written by Greg Arnold, DC, CSCS. Women with the highest supplement intake of vitamin A had a 26% reduced risk of melanoma vs. women not taking vitamin A supplements. According to the CDC, melanoma is the deadliest type of skin cancer, causing about 8,000 deaths in...
Vitamin A and Omega-3 Fat Combine to Help Eye Health
Written by Greg Arnold, DC, CSCS. A combination of omega-3 and vitamin A could reduce the risk of an eye disease in which there is damage to the retina (tissue at the back of the inner eye that converts light into nerve signals and sends them to the brain). Retinitis...
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