Several combinations of lutein, zeaxanthin, and omega-3 fatty acids did not prevent the development of
age-related macular degeneration when compared to placebo after 5 years.
At first glance, it might seem obvious that people in the United States need MVIs. Since the 1970s, there has been a steady decline in intake of fruits and vegetables, followed closely by an increase in intake of nutrient-poor, high carbohydrate foods.7 In 2005, the CDC estimated that only 32.6% of adults consumed fruit two or more times per day and only 27.2% ate vegetables three or more times per day.8 A low fruit and vegetable intake becomes increasingly more likely in the elderly due to poor appetite, eating disability, and underlying pathology.9 Even with an adequate intake of fruits and vegetables, it may be difficult to meet daily recommended intakes (DRI)due to changes in nutrient content of foods, which can depend on the food’s origin and subsequent processing. For example, some frozen vegetables may lose up to 95% of their folate content after being frozen for only 3 months.10 Another analysis found that the content of nutrients in dehydrated fruits and vegetables drastically decreased after a shelf life of 3 months.11
A retrospective survey asked women shortly after delivering babies about their use of herbal remedies during their pregnancy. The answers were correlated with various pregnancy outcomes. The study unexpectedly identified higher risks from herbal remedy use on some outcomes.
The fda has approved a higher dose of the rivastigmine transdermal system (13.3 mg/24 hours) for the treatment of Alzheimer's disease (AD). Lower-dose patches were previously approved for mild-to-moderate disease. Rivastigamine is a reversible acetylcholinesterase inhibitor. The transdermal system is marketed by Novartis as Exelon.