An assortment of vitamin and health articles from the past year. (Note: Some other major Vitamin D study results were posted earlier this year, as well as today - search Vitamin D). Whether one should take vitamins is still being debated, with the most support being for supplementation with Vitamin D (specifically D3).The first summary is from pubmed.gov:
Many patients treated for vitamin D deficiency fail to achieve an adequate serum level of 25-hydroxyvitamin D [25(OH)D] despite high doses of ergo- or cholecalciferol. The objective of this study was to determine whether administration of vitamin D supplement with the largest meal of the day would improve absorption and increase serum levels of 25(OH)D.... it is concluded that taking vitamin D with the largest meal improves absorption and results in about a 50% increase in serum levels of 25(OH)D levels achieved. Similar increases were observed in a wide range of vitamin D doses taken for a variety of medical conditions.
The following are all from Science Daily:
Long-term daily multivitamin supplement use may lower cataract risk in men, according to a study of nearly 15,000 male physicians. Half took a common daily multivitamin, as well as vitamin C, vitamin E and beta carotene supplements. The other half took a placebo. The researchers followed the participants to identify how many participants in each group developed new cases of two common eye diseases: cataract and age-related macular degeneration. Results showed a 9 percent decrease in risk for those that took the supplements.
Taking B vitamins doesn't slow mental decline as we age, nor is it likely to prevent Alzheimer's disease, conclude researchers who have assembled all the best clinical trial data involving 22,000 people to offer a final answer on this debate. When looking at measures of global cognitive function -- or scores for specific mental processes such as memory, speed or executive function -- there was no difference between those on B vitamins and those receiving placebo to a high degree of accuracy.
Children who drink non-cow's milk such as rice, almond, soy or goat's milk, have lower levels of vitamin D in their blood than those who drink cow's milk, according to a new study. In North America, every 100 millilitres of cow's milk is required to be fortified with 40 units of vitamin D. Adding vitamin D to non-cow's milk, however, is voluntary.
Amid conflicting reports about the need for vitamin E and how much is enough, a new analysis published today suggests that adequate levels of this essential micronutrient are especially critical for the very young, the elderly, and women who are or may become pregnant... "It's important all of your life, but the most compelling evidence about vitamin E is about a 1000-day window that begins at conception," Traber said. "Vitamin E is critical to neurologic and brain development that can only happen during that period. It's not something you can make up for later." Some of the best dietary sources of vitamin E -- nuts, seeds, spinach, wheat germ and sunflower oil -- don't generally make the highlight list of an average American diet.
Analysis of pooled data showed a strong association between low vitamin D levels and risk of death in general death from cardiovascular diseases, death in from cancer, at least in older people with a history of cancer. "Going into our study, the effect of vitamin D supplementation on risk of death was not clear," said the lead investigator. "Our analysis confirms the protective nature of this substance especially in elderly patients."
Administration of high-dose vitamin D3 compared with placebo did not reduce hospital length of stay, intensive care unit length of stay, hospital mortality, or the risk of death at 6 months among patients with vitamin D deficiency who were critically ill, according to a study.