Under-reporting of food intake is one of the fundamental obstacles preventing the collection of accurate habitual dietary intake data. The prevalence of under-reporting in large nutritional surveys ranges from 18 to 54% of the whole sample, but can be as high as 70% in particular subgroups. This wide variation between studies is partly due to different criteria used to identify under-reporters ...

Abstract Objectives: to evaluate the association of pre-pregnancy and current body mass index density dietary macronutrients on underreporting energy intake at pregnancy. Methods: cross-sectional analysis 327 postpartum women from city Mesquita, in Rio de Janeiro. A food frequency questionnaire was administered maternity ward having last six months pregnancy as time frame. Energy balance consid...

Abstract Background Dietary habits during infancy and early childhood could have short long-term health effects influence future adults' dietary habits. Acting this sensitive period of life be crucial. In 2006 a prospective infants cohort study was established at the Maternal Child Institute - Burlo Garofolo in Trieste, Italy (Trieste Infant Feeding Cohort TIF cohort) to assess energy nutrients...

Background:Despite the high levels of inflammation in hemodialysis patients and the effects of diet on systemic inflammation, such as the development of atherosclerosis and cardiovascular disease, few studies have evaluated the relationship of macronutrients and antioxidants intake with serum C-reactive protein (CRP). Therefore, this study assessed the relationship between serum high sensitivit...

Objective: This study aimed at evaluating the balance in the intake of protein, carbohydrate, and fat among the Brazilian elderly population. Methods: The data analyzed were taken from the National Dietary Survey 2008-2009, from a total of 4,286 Brazilian elders (60-104 years old). Based on the dietary intake obtained from two food records, the Multiple Source Method (MSM) was used to evaluat...

We combine a recently developed framework for describing dietary generalism with compositional data analysis to examine patterns of omnivory in a large widely distributed mammal. Using the brown bear (Ursus arctos) as a model species, we collected and analyzed data from the literature to estimate the proportions of macronutrients (protein, carbohydrate, and lipid) in the diets of bear populatio...

The stable carbon isotope ratio of exhaled CO(2) (delta(13)C(breath)) reflects the isotopic signature of the combusted substrate and is, therefore, suitable for the non-invasive collection of dietary information from free-ranging animals. However, delta(13)C(breath) is sensitive to changes in ingested food items and the mixed combustion of exogenous and endogenous substrates. Therefore, experim...