Hyperosmotic stress on cells limits many aspects of cell function, metabolism and health. International data suggest that schoolchildren may be at risk of hyperosmotic stress on cells because of suboptimal water intake. The present study explored the cell hydration status of two samples of children in the USA.

Cross-sectional study describing the urine osmolality (an index of hyperosmotic cell shrinkage) and water intake of convenience samples from Los Angeles (LA) and New York City (NYC).

Each participant collected a urine sample at an outpatient clinic on the way to school on a weekday morning in spring 2009. Each was instructed to wake, eat, drink and do as usual before school, and complete a dietary record form describing the type and amounts of all foods and beverages consumed after waking, before giving the sample.

The children (9–11 years) in LA (n 337) and NYC (n 211) considered themselves healthy enough to go to school on the day they gave the urine sample.

Elevated urine osmolality (>800 mmol/kg) was observed in 63 % and 66 % of participants in LA and NYC, respectively. In multivariable-adjusted logistic regression models, elevated urine osmolality was associated with not reporting intake of drinking water in the morning (LA: OR = 2·1, 95 % CI 1·2, 3·5; NYC: OR = 1·8, 95 % CI 1·0, 3·5). Although over 90 % of both samples had breakfast before giving the urine sample, 75 % did not drink water.

Research is warranted to confirm these results and pursue their potential health implications.

The Hmong are a growing population of South-East Asian immigrants with increasing rates of obesity and diabetes, yet little is known about their dietary consumption patterns. The present study aimed to investigate the dietary intake of Hmong children and whether acculturation and/or time lived in the USA influences dietary intake, BMI and nutritional status.

Two 24 h dietary recalls were collected on non-consecutive days using the multiple-pass interviewing method and were averaged. Heights and weights were measured, from which BMI was calculated. An acculturation score was computed.

Schools, churches, Hmong organizations, and community centres.

Three hundred and thirty-five Hmong children aged 9–18 years from Twin Cities, Minnesota, USA.

Approximately half of our participants were either overweight or obese. US-born children were significantly heavier, taller, had a higher BMI, and in general consumed more energy, saturated fat and Na than those who were born in Thailand/Laos and were living in the USA for <5 years. Children who were more acculturated to US norms including language use, social connections and dietary habits had higher BMI-for-age and consumed significantly more saturated fat, trans fatty acids, Na and Ca compared with their less acculturated counterparts.

Diets of most Hmong children appear below the recommendations for fibre, vitamins A, D and E, Ca, P, Mg and K, and are higher in fats, sugars and Na. Living in an obesogenic US environment is a probable reason for poor dietary quality of Hmong and may be a contributing factor to the rising rates of obesity and diabetes in this population.

The present study examined the association of serum ferritin with CHD risk using the Framingham Heart Study's 10-year risk algorithm.

Ordinal logistic regression modelling was used to interpret risk. Proportional odds modelling assessed four divisions of ranked CHD risk (4, high; 3, increased; 2, slight; 1, minimal), separately by sex.

Baltimore, MD, USA.

African-American and white participants (n 1823) from baseline of the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study, aged 30–64 years.

For men, there was a 0·5 % increase in risk for every 10-unit rise in serum ferritin (pmol/l). Other significant predictors included increased BMI, white race, unemployment and C-reactive protein ≥9·5 mg/l. For women, there was a 5·1 % increase in risk per 10-unit rise in serum ferritin (pmol/l). Other significant predictors included increased BMI, lower education, unemployment and C-reactive protein ≥9·5 mg/l.

Serum ferritin is a significant predictor of 10-year hard CHD risk for HANDLS study participants, a low-income, urban population. Serum ferritin, independent of elevated C-reactive protein, was associated with increased 10-year CHD risk for HANDLS participants. To our knowledge, these data provide the first evidence of the role of serum ferritin as a risk factor for hard CHD in African-American and white postmenopausal women in the USA. Future research on cardiovascular events from this prospective study may confirm the association.

To compare non-ethnically based supermarkets and Latino grocery stores (tiendas) in a lower-income region with regard to the availability, quality and cost of several healthy v. unhealthy food items.

A cross-sectional study conducted by three independent observers to audit twenty-five grocery stores identified as the main source of groceries for 80 % of Latino families enrolled in a childhood obesity study. Stores were classified as supermarkets and tiendas on the basis of key characteristics.

South San Diego County.

Ten tiendas and fifteen supermarkets.

Tiendas were smaller than supermarkets (five v. twelve aisles, P = 0·003). Availability of fresh produce did not differ by store type; quality differed for one fruit item. Price per unit (pound or piece) was lower in tiendas for most fresh produce. The cost of meeting the US Department of Agriculture's recommended weekly servings of produce based on an 8368 kJ (2000 kcal)/d diet was $US 3·00 lower in tiendas compared with supermarkets (P < 0·001). The cost of 1 gallon of skimmed milk was significantly higher in tiendas ($US 3·29 v. $US 2·69; P = 0·005) and lean (7 % fat) ground beef was available in only one tienda (10 %) compared with ten (67 %) supermarkets (P = 0·01).

Barriers remain in the ability to purchase healthier dairy and meat options in tiendas; the same is not true for produce. These results highlight the potential that tiendas have in improving access to quality, fresh produce within lower-income communities. However, efforts are needed to increase the access and affordability of healthy dairy and meat products.

To reduce prevalence of anaemia in low-income postpartum women.

A randomised, non-blind clinical trial was conducted among 959 low-income, postpartum women in eleven clinics in Mississippi. The clinics were randomised to one of three treatment groups: (i) selective anaemia screening of high-risk women as recommended currently (control); (ii) universal anaemia screening and treatment of anaemic women (group I); and (iii) universal Fe supplementation of 65 mg/d for two months to all low-income women (group II). All study participants within each clinic received the same treatment. Women were followed up at 6 months after delivery. Hb was measured at baseline and at follow-up. The primary outcome variable was the proportion of women with anaemia after treatment.

Eleven health clinics in Mississippi.

Low-income, postpartum women.

Baseline characteristics of the three study groups were compared using one-way ANOVA and an appropriate post hoc test for continuous variables and the χ2 test for categorical variables. Fifty-two per cent of postpartum women were anaemic (Hb < 12·0 g/dl) and the rate decreased to 33 % at 6 months after the intervention. Group II women, who received universal Fe supplementation, improved their Hb status significantly (P < 0·001) at 6 months postpartum compared with the other groups. Prevalence of anaemia was also significantly lower among group II women (22·5 %) compared with controls (34 %) and group I women (43 %; P < 0·001).

A universal Fe supplementation strategy was effective in reducing the prevalence of anaemia among low-income postpartum women.

To examine mothers’ experience of support received from fathers for breast-feeding.

We conducted in-depth in-person interviews with women with recent breast-feeding experience. Interview transcripts were analysed by qualitative content analysis. Interviews were designed to explore the mothers’ perception of role of fathers in breast-feeding, education on breast-feeding that fathers received and their perception of the fathers’ view on breast-feeding.

Urban and suburban community.

Nineteen women from a metropolitan area in the north-eastern USA.

Ten themes emerged, these involved practical and emotional support provided by fathers, especially during times of unexpected breast-feeding challenges. In addition, mothers perceived fathers may benefit from more peer and professional support, lactation consultant service and breast-feeding education.

Mothers appreciated the support from fathers for breast-feeding continuation, including encouragement and understanding. These results may be useful for health-care practitioners to promote breast-feeding continuation by supporting fathers in their role in the breast-feeding process.

To examine realist policy options for the South Australian government to improve food security.

Semi-structured interviews with twenty-four key South Australian food security stakeholders.

Food security is a global issue that affects both developing and developed countries. Governments are well placed to improve food security but the solutions are not always evident.

Policy makers, leaders of non-government organisations, private enterprise and front-line food security workers in South Australia.

The research produced forty-four potential policy options for the South Australian government to improve food security.

Stakeholders offered detailed policy solutions for the local context. This illustrates how gathering local evidence expands understanding on an issue. The process used to generate these policy options is applicable to other public health problems and other contexts.

To establish the operational feasibility and effectiveness of using locally available foods to prevent malnutrition and improve child growth in Kenyan children.

Quasi-experimental design with an intervention group of children in all villages in one region and a non-intervention group of children in all villages in an adjacent region. The intervention was the distribution of a monthly food ration for the index child, a separate family ration, and group education on appropriate complementary feeding and hygiene.

Rural villages in the arid lands of eastern Kenya with a high prevalence of child malnutrition.

All children in the target villages aged 6–20 months with weight-for-length Z-score (WHZ) greater than −2 at baseline.

Children in the intervention and non-intervention groups had similar baseline anthropometric measures. The caregivers in the intervention group confirmed that the intended amounts of food supplements were received and child nutrient intake improved. During the 7-month intervention period there were significant group differences in pre–post Z-score changes between the intervention and non-intervention groups for weight-for-age (0·82, P < 0·001) and weight-for-height (1·19, P < 0·001), but not for height-for-age (−0·20, P = 0·09), after adjusting for multiple covariates. Compared with the non-intervention group, the intervention group had a lower prevalence of wasting (0 % v. 8·9 %, P = 0·0002) and underweight (6·3 % v. 23·0 %, P < 0·0001). Infectious morbidity was similar in both groups.

The findings suggest that the distribution of locally available foods is operationally feasible and improves child weight gain and decreases acute malnutrition in Kenyan children.

The present study aimed to establish the annual public expenditure arising from the health and social care of patients with diet-related malnutrition (DRM) in the Republic of Ireland.

Costs were calculated by (i) estimating the prevalence of DRM in health-care settings derived from age-standardised comparisons between available Irish data and large-scale UK surveys and (ii) applying relevant costs from official sources to estimates of health-care utilisation by adults with DRM. No attempt has been made to estimate separately the costs of DRM and any associated disease, since each can be a cause or consequence of the other. The methods used are adapted from an evaluation of the cost of malnutrition in the UK by the British Association for Parenteral and Enteral Nutrition (2009).

Hospitals, nursing homes, out-patient clinics, primary-care clinics and home care.

All adult patients receiving hospital in-patient, out-patient or specified community health-care services.

The annual public health and social care cost associated with adult malnourished patients in Ireland is estimated at over €1·4 billion, representing 10 % of the health-care budget. Most of this cost arises in acute hospital or residential care settings (i.e. 70 %), with nutritional support estimated to account for <3 % of spend.

The cost associated with the care of patients with DRM is substantial and may rise as the proportion of older people within the population increases, a group at increased risk of DRM. Despite growing pressure on health-care budgets, little attention has been focused on the economic burden associated with DRM in Ireland or the potential for savings arising from improved detection and treatment of those at risk.

The present study examined whether characteristics such as quality, selection and convenience are associated with dietary intake of fruits and vegetables independent of perceived costs in an inner-city, low-income population.

Secondary analysis of baseline data from a social marketing intervention designed to change household dietary practices among parents of 3- to 7-year-old children.

A community sample drawn from six low-income, primarily minority neighbourhoods in Chicago, IL, USA.

From the parent study, 526 respondents completed the baseline survey and were eligible for inclusion. Of this number, 495 provided complete data on sociodemographic characteristics, fruit and vegetable consumption, perceptions of the shopping environment, perceived costs of fruits and vegetables, and food shopping habits.

Logistic regression analysis showed that more positive perceptions of the food shopping environment were associated with greater consumption of fruits and vegetables. There was an increase of approximately twofold in the likelihood of consuming three or more fruits and vegetables daily per level of satisfaction ascribed to the shopping environment. This association was independent of perceived cost, store type and sociodemographic characteristics.

Our data show that among a generally minority and low-income population, quality, selection and convenience are important determinants of fruit and vegetable consumption. Nutrition promotion campaigns that aim to alter the built environment by increasing access to fruits and vegetables should recognize that simply increasing availability may not yield beneficial change when characteristics of the shopping context are ignored.

To review national policy governing nutrition in child-care settings and explore policy translation at a regional and local level in the South East of England.

Semi-structured interviews with regional experts.

Child-care settings in Southampton, England, registered by OFSTED (Office for Standards in Education Children's Services and Skills).

Thirteen subjects including child-care professionals in Southampton and policy advisors from the Government Office of the South East.

Policy regarding early years food provision varies across the country. Although there appears to be consensus between local stakeholders on the importance of improving early years nutrition in Southampton, intentions have yet to be translated into cohesive action, with differences in food and nutrition practice in child-care settings across the city. There are also areas of incoherence, inequalities in access to training and development, and duplication in local and regional support mechanisms.

The importance of proper early nutrition to provide the building blocks for life-long health and well-being is grounded in a substantial evidence base. Outside the home, early years child-care settings are an ideal place for providing a strong foundation in nutritional health and dietary habits for young children. The long-term benefits of achieving optimum nutrition in the early years should be secured through the coherent efforts of national, regional and local policy makers, child-care practitioners and parents. Existing commitment and capacity to achieve this objective at a local and regional level must be supported and matched at a national level with the acceleration of policy development, including quality control and support mechanisms.

To examine the relationship between the neighbourhood food environment and dietary intake among adolescents.

Cross-sectional design using: (i) a geographic information system to assess characteristics of the neighbourhood food environment and neighbourhood socio-economic status; (ii) the modified Healthy Eating Index (HEI) to assess participants’ overall diet quality; and (iii) generalized linear models to examine associations between HEI and home and school food environmental correlates.

Mid-sized Canadian city in Ontario, Canada.

Grade 7 and 8 students (n 810) at twenty-one elementary schools.

Students living in neighbourhoods with a lower diversity of land-use types, compared with their higher diversity counterparts, had higher HEI scores (P < 0·05). Students with more than 1 km between their home and the nearest convenience store had higher HEI scores than those living within 1 km (P < 0·01). Students attending schools with a distance further than 1 km from the nearest convenience store (P < 0·01) and fast-food outlet (P < 0·05) had higher HEI scores than those within 1 km. Those attending schools with three or more fast-food outlets within 1 km had lower HEI scores than those attending schools with no fast-food outlet in the school surroundings (P < 0·05).

Close proximity to convenience stores in adolescents’ home environments is associated with low HEI scores. Within adolescents’ school environments, close proximity to convenience and fast-food outlets and a high density of fast-food outlets are associated with low HEI scores.

As further understanding is required of what behavioural factors are associated with long-term weight-loss success, the aim of the present study was to determine the prevalence of successful weight loss 15 months post-enrolment in a commercial web-based weight-loss programme and which behavioural factors were associated with success.

An online survey was completed 15 months post-enrolment in a commercial web-based weight-loss programme to assess weight-related behaviours and current weight. Participants were classified as successful if they had lost ≥5 % of their starting weight after 15 months.

Commercial users of a web-based weight-loss programme.

Participants enrolled in the commercial programme between August 2007 and May 2008. Six hundred and seventy-seven participants completed the survey.

The median (interquartile range) weight change was −2·7 (−8·2, 1·6) % of enrolment weight, with 37 % achieving ≥5 % weight loss. Multivariate logistic regression analysis found success was associated with frequency of weight self-monitoring, higher dietary restraint score, lower emotional eating score, not skipping meals, not keeping snack foods in the house and eating takeaway foods less frequently.

The findings suggest that individuals trying to achieve or maintain ≥5 % weight loss should be advised to regularly weigh themselves, avoid skipping meals or keeping snack foods in the house, limit the frequency of takeaway food consumption, manage emotional eating and strengthen dietary restraint. Strategies to assist individuals make these changes to behaviour should be incorporated within obesity treatments to improve the likelihood of successful weight loss in the long term.

To investigate the vitamin D status during winter of a healthy population of hospital employees and to assess the correlation between vitamin D status and risk of infections in the upper respiratory tract.

One hundred and ten healthy volunteers answered a questionnaire on their solar exposure habits and vitamin D intake and delivered one blood sample for quantification of vitamin D level (serum 25-hydroxyvitamin D (25(OH)D) concentration) during December 2007–January 2008. At the end of the winter we screened for the occurrence of respiratory infections and sought associations with vitamin D status.

Bucharest, Romania, 45°N.

One hundred and ten healthy hospital employees.

Eighty per cent of participants were vitamin D deficient (25(OH)D level below 50 nmol/l). The main determinant of serum 25(OH)D was sun exposure during the summer previous to the study (P = 0·02 in multivariate analysis). Intake of vitamin D, BMI and age played no significant role for the level of 25(OH)D. Overall we found a non-significant negative correlation between 25(OH)D level and new cases of infection (Spearman correlation coefficient of −0·12, P = 0·2).

Vitamin D status is alarmingly poor in active, relatively young women residing in Romania. If our results are reproduced by other investigations, action to improve vitamin D status at the population level is necessary. We were not able to show a statistically significant relationship between vitamin D status and infection risk in our material.

Child-care providers have a key role to play in promoting child nutrition, but the higher cost of nutritious foods may pose a barrier. The present study tested the hypothesis that higher nutritional quality of foods served was associated with higher food expenditures in child care homes participating in the Child and Adult Care Food Program (CACFP).

In this cross-sectional study, nutritional quality of foods served to children and food expenditures were analysed based on 5 d menus and food shopping receipts. Nutritional quality was based on servings of whole grains, fresh whole fruits and vegetables, energy density (kJ/g) and mean nutrient adequacy (mean percentage of dietary reference intake) for seven nutrients of concern for child health. Food expenditures were calculated by linking receipt and menu data. Associations between food expenditures and menu quality were examined using bivariate statistics and multiple linear regression models.

USA in 2008–2009.

Sixty child-care providers participating in CACFP in King County, Washington State.

In bivariate analyses, higher daily food expenditures were associated with higher total food energy and higher nutritional quality of menus. Controlling for energy and other covariates, higher food expenditures were strongly and positively associated with number of portions of whole grains and fresh produce served (P = 0·001 and 0·005, respectively), with lower energy density and with higher mean nutrient adequacy of menus overall (P = 0·003 and 0·032, respectively).

The results indicate that improving the nutritional quality of foods in child care may require higher food spending.

There has been a growing interest in tailored nutrition education over the previous decade, with a number of literature reviews suggesting this intervention strategy holds considerable potential. Nevertheless, the majority of intervention trials undertaken to date have employed subjective self-report outcome measures (such as dietary recalls). The aim of the present review is to further consider the likely true effect of tailored nutrition education by assessing the findings of tailored nutrition education intervention trials where objective outcome measures (such as sales data) have been employed.

Four trials of tailored nutrition education employing objective outcome measures were identified: one was undertaken in eight low-cost supermarkets in New Zealand (2010; n 1104); one was an online intervention trial in Australia (2006; n 497); and two were undertaken in US supermarkets (1997 and 2001; n 105 and 296, respectively). Findings from the high-quality New Zealand trial were negative. Findings from the US trials were also generally negative, although reporting was poor making it difficult to assess quality. Findings from the high-quality online trial were positive, although have limited generalisability for public health.

Trials employing objective outcome measures strongly suggest tailored nutrition education is not effective as a stand-alone strategy. However, further large, high-quality trials employing objective outcome measures are needed to determine the true effectiveness of this popular nutrition intervention strategy. Regardless, education plays an important role in generating social understanding and acceptance of broader interventions to improve nutrition.