Search results for vitamin a

“Vitamin D is an essential nutrient that is involved in multiple physiological processes. Inadequate vitamin D status is associated with poor bone health, impaired immune function, and increased risk for depression.”

“Researchers fed mice diets containing low, moderate, or high doses of vitamin D for four weeks to induce deficient, normal, and high vitamin D concentrations, respectively. Then, they measured changes in the animals' blood concentrations of leptin and myostatin and assessed their strength.”

“Evidence now suggests vitamin D also influences body composition and muscle strength. A recent study in mice showed that high vitamin D intake increased muscle strength and mass without altering body weight.”

“Researchers determined the vitamin K1 intake of more than 1,400 Australian women (average age, 75) using a food frequency questionnaire. In a subset of more than 1,000 women, they also measured carotid artery intima-media thickness, a marker of early blood vessel disease.”

“How do I decide how much vitamin D to supplement with? Can you get too much vitamin D? Is there a difference in vitamin D made from the sun versus a supplement? What form of vitamin D is more bioavailable and absorbed better?”

“Of those, 11 (nearly 85 percent) were vitamin D deficient. All of the ICU patients under the age of 75 were vitamin D deficient. The authors of the study noted that COVID-19-related death and vitamin D deficiency are more common among African Americans.”

“For decades, deficiencies in micronutrients such as magnesium and vitamin D have been linked to conditions such as depression and obesity, as well as their associated hallmarks of systemic inflammation.”

“The team enrolled 60 women aged 60 to 75 years who met Asian Working Group criteria for sarcopenia and randomly assigned them to two groups. One group received daily vitamin C (1000 milligrams) plus vitamin E (335 milligrams), while the comparison group took placebo tablets.”

“Vitamin D regulates over 900 genes in the body that affect the immune, musculoskeletal, and endocrine systems, among others. Previous research has shown that vitamin D deficiency may decrease athletic performance.”