At TalkingNutrition, we identified vitamin D as the most researched vitamin in both 2012 and 2011, and even though we haven’t started our analyses yet for 2013, based on what has been coming through our daily searches, it will probably maintain its top position for this year. A systematic review published late yesterday in The Lancet Diabetes and Endocrinology by Autier, Boniol, Pizot and Mullie summarized results from a great number of vitamin D publications, both observational and intervention studies. What were the final conclusions?Read More »
Looking out the window, the day is gray. The sun is blocked by a heavy layer of clouds, it rays barely reaching the ground. In my case, it is overcast because of rainfall. In other places, smog may be the cause. Regardless, it is a poor day for cutaneous synthesis of vitamin D.
According to a systematic review of 195 studies in 44 countries published between 1990 and 2011 (Hilger et al, 2013), my situation is not unique. 88% of the studies had mean serumRead More »
Three new studies report that low omega-3 fatty acid levels and excessive body fat are contributors to inflammation and poor health.
Reinders and associates wanted to know if circulating long-chain polyunsaturated fatty acids (LC-PUFA) might induce loss of heart function. Using cross-sectional serum LC-PUFA data from 621 participants in the Hoorn Study and longitudinal data from another 336 participants (average age = 68.6y), they report that lower eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) were associated with both lower left ventricular ejection volume (LVEF) and heart rate. These are findings of reduced heart rate were also reported in a meta-analysis by Mozaffarian et al (2005).Read More »
Today is the 20th anniversary of the landmark 1993 World Development Report that identified how important investments into health care are for human development. A Lancet Commission has developed a new investment framework to further reduce the health gap between developed and developing countries and improve global health during the next two decades. Although progress has been made, how can we ensure that investments in health care can improve development going forward?Read More »
Days will continue to shorten for those living in the northern hemisphere for another few weeks. For most, this means commuting in the dark. Shadows are long for much of the day. If there is any precipitation, lights glare from wet surfaces. For many, these conditions make it difficult to see properly.
Weikel and colleagues review the importance of nutrition in maintaining visionRead More »
In this age of rising health care costs, researching simple and effective means to prevent prolonged hospital stays is a priority. The past decade has seen increasing interest in the role that vitamin D plays in the immune system. Quraishi and co-workers recently published some results of a retrospective analysis into vitamin D levels before bariatric surgery and the risk of infection after the operation.Read More »
As our understanding of human genetics has grown, we are starting to appreciate the effect of how genes and environment interact. Researchers Shaghaghi and associates published an article on the effect that variations in a vitamin C transporter have on two forms of inflammatory bowel disease. Vitamin C is a major water-soluble antioxidant. It has been shown to reduce inflammation by scavenging reactive oxygen species to prevent cellular damage according to a review by Traber and Stevens. Buffinton and Doe found that levels of vitamin C were lower in people with inflammatory bowel disease, and this could hinder recovery of the intestinal lining.Read More »
Have you ever kept a diet record or filled in a dietary questionnaire? Was it accurate? Did you forget to include something that you ate? Did you change your diet to make it seem like you eat healthier than you normally do? These are some of problems that make accurate assessments of food and nutrient intakes difficult. Last month, Archer and colleagues reported results of an analysis of under-reporting in the NHANES nutrition survey. There has been a recent reply by Mitka. TalkingNutrition provides a perspective on this issue, and how it relates to nutrient intakes.Read More »