Have you ever calculated your 30-year risk of cardiovascular disease? What about your chance of having a heart attack in the next 10 years? Both tools use general demographic information combined with established risk factors such as smoking status, cholesterol levels and blood pressure to calculate the chance that an individual will develop heart disease or suffer a heart attack within a certain period of time. These tools are also used in the primary prevention of cardiovascular disease, as described recently by Leening, Berry and Allen in the Journal of the American Medical Association as part of their article on taking a lifespan approach to reducing cardiovascular risk. What role can nutrition play?
Entries filed under 'Weight management'
If you live in the US and have just celebrated Thanksgiving, it is quite possible your waistband feels a tad tighter this Monday. You should also know that increased visceral fat may increase your need for vitamin D supplementation. And shortening daylength in the northern hemisphere isn’t any help.
Zhang and colleagues randomly selected 1,105 adults living in China. Visceral fat accumulation and serum vitamin D concentrations were measured. Men and pre-menopausal women carrying extra visceral fat were more likely to have serum 25(OH)D3 concentrations below 30 µg/L
Yesterday, the US FDA announced the results of a widespread investigation into the safety of dietary supplements on the market. The sweep has led to civil injunctions and criminal actions against 117 manufacturers of distributors of dietary supplements. Information about hundreds of supplements that contain hidden or potentially harmful ingredients have been identified. In the most egregious case, the dishonestly named USPlabs, who have produced some widely popular weight loss and muscle building supplements, has received may charges related to falsification of documentation and knowingly placing unsafe products on the market. How can consumers protect themselves from unsafe dietary supplements?
A major pitfall of nutrition research is the difficulty in accurately recording food intakes. All methods have considerable limitations that affect the collection of data and have the potential to lead to under-, over, or misreporting of food consumed, and potentially influence the results and conclusions of nutrition research. A research paper by Archer, Hand and Blair recently stirred up controversy in this field when they found that estimations of food intake over the history of NHANES were not plausible for most participants, especially the obese. Two recent publications looked at this problem: one reports on factors that affect under-reporting of food intakes in children and adolescents (Murakami), and the other investigates the use of a micro-camera to record food intakes (Pettitt).
Adequate intakes of fat are important in the diets of infants and young children. The World Health Organisation gives advice regarding the role of fat in the diet: fats provide around half of the energy in the diets of infants aged up to 6 months, and should thereafter decline to providing around one quarter to one third of energy in adolescents. Some research has shown that PUFA intake is associated with reduced risk of the metabolic syndrome and may affect body composition by reducing waist circumference and body fat percentage in adults. Is there also a link in children?