نتایج جستجو برای: food studies
تعداد نتایج: 1657813 فیلتر نتایج به سال:
Flow cytometry (FC) is a technique for the rapid analysis of multiple parameters of individual cells. One of the limitations of conventional methods for the analysis of cell populations is the determination of a single value for each cell parameter, which is considered representative of the whole cell population. In contrast, FC aims to obtain segregated data, corresponding to different cell su...
Background: The link between food insecurity and weight disorders of children or adolescents remains controversial. Therefore, this systematic review and meta-analysis aimed to clarify the association between food insecurity and weight disorders of children and adolescents in Iran. Methods: PubMed, ISI Web of Science, Scopus, Google Scholar, Magiran, and SID databases were searched up to August...
Clinical studies to prevent the development of food allergy have recently helped reshape public policy recommendations on the early introduction of allergenic foods. These trials are also prompting new research, and it is therefore important to address the unique design and analysis challenges of prevention trials. We highlight statistical concepts and give recommendations that clinical researc...
Emulsions, thermodynamically unstable mixtures, are dispersed systems in which one liquid is dispersed as droplets in a second immiscible phase. In most natural and processed foods, the immiscibility of water with lipids is overcomed by dispersing one phase as droplets into the other phase. The oil-in-water emulsions are highly stable. This is because some water-soluble surface-active agents an...
BACKGROUND Laboratory-based investigations indicate that the consumption of foods with a low energy density (kcal/g) decreases energy intake. Although low-energy-dense diets are recommended for weight management, relations between energy density, energy intake, and weight status have not been clearly shown in free-living persons. OBJECTIVES A representative US sample was used to determine whe...
Soft drink and fast food are energy dense foodstuffs that are heavily marketed to adolescents, and are likely to be important in terms of risk of obesity. This study sought to examine the influences on soft drink and fast food consumption among adolescents as part of a cross-sectional survey of 2,719 adolescents (aged 11-16) from 93 randomly selected schools in New South Wales, Australia. Stude...
OBJECTIVE To compare food consumption during television (TV) viewing among adolescents who watched >2 h/d v. ≤2 h/d; and to examine the association between sociodemographic variables (age, gender and socio-economic status (SES)) and the consumption of energy-dense foods and drinks during TV viewing. DESIGN The data are part of the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELEN...
Relative validation of a food frequency questionnaire to estimate food intake in an adult population
Background: Scientifically valid descriptions of dietary intake at population level are crucial for investigating diet effects on health and disease. Food frequency questionnaires (FFQs) are the most common dietary tools used in large epidemiological studies. Objective: To examine the relative validity of a newly developed FFQ to be used as dietary assessment tool in epidemiological studies. De...
cash transfer (cts) is an increasingly popular social protection mechanism used by many developing countries to improve the food security and nutritional status of lower socio-economic groups. this paper is a review of the literature regarding the impact of ct programs on the food security of recipient households in the developing countries, including iran. we looked for all original studies, p...
BACKGROUND Dietary intake patterns of children from the 2004 Pelotas birth cohort study have been described at 12, 24 and 48 months of age, but there is no information about dietary patterns of these children at 6 years. Then, we aimed to identify and describe dietary intake patterns of children aged 6 years as well as to assess their association with socioeconomic and demographic characteristi...
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