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Background: Food insecurity can have lasting physical and mental health consequences. The experience of food insecurity within a household may disproportionately impact mothers because they tend to manage the household food environment. Objective: This study sought to understand the stresses faced by United States mothers experiencing food insecurity, related coping mechanisms, and the impacts of these stressors on their mental health. Methods: Semistructured interviews were conducted in May and June 2022 with a purposive sample of Virginia mothers who reported experiences of food insecurity. Participants were recruited from a related survey and university and community LISTSERVs. Interviews were transcribed and analyzed by trained coders. A thematic analysis was conducted to describe themes that emerged from the data. Virtual interviews were 20-60 min in duration. Mothers with children living in their household, having experienced food insecurity, and living in Virginia were eligible. Results: The following 3 themes emerged from the interviews with the mothers (n = 15): 1) food insecurity added stress to mothers' lives in multiple ways (e.g. worry about obtaining the "right" foods and internalized or experienced stigma), 2) mothers used positive and negative coping strategies to address the impacts of these stressors (e.g. use of community resources and reduced personal food intake), and 3) the stressors and coping strategies had varying impacts on mothers' mental health (e.g. added to existing mental health challenges or reduced their mental capacity to make changes). Conclusions: Study findings suggest that a multilevel and tailored approach to address diverse stressors is warranted. Future research should explore emotional coping strategies that comprehensively empower mothers to manage stressors, leverage resources, and reduce social stigma associated with food insecurity and accessing nutrition and mental health assistance. This may improve their household food security and mitigate the burden of stressors on their mental health because system-level solutions to food insecurity are pursued.
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The measurement of habitual energy intake remains a challenge in nutrition research. High levels of misreporting, particularly among adults with obesity, have been observed when comparing self-reported energy intake to energy expenditure assessed via the doubly labeled water technique. Little is known about misreporting in adults with class III obesity (body mass index ≥40 kg/m2). This systematic review assessed the representation of adults with class III obesity in dietary validation studies and the validity of self-reported dietary energy intake for this group. Studies were included in this review if they: compared self-reported energy intake assessment method(s) to doubly labeled water, had participants ≥18 years old, and included participants with class III obesity. Fifteen studies met these criteria. Of those, eight included information about the number of participants with class III obesity. Out of 1784 participants across eight studies, 63 (3.5%) participants had class III obesity, compared to 9.2% of US adults with class III obesity. Six studies provided data on validity of energy intake assessment for class III obesity, with five of these showing underreporting. Participants with class III obesity are underrepresented in dietary validation studies. Future research should explore the role of weight status on dietary reporting accuracy.
Subject(s)
Energy Intake , Self Report , Humans , Reproducibility of Results , Adult , Energy Metabolism , Body Mass Index , Obesity, Morbid , ObesityABSTRACT
BACKGROUND: Aging is associated with gut dysbiosis, low-grade inflammation, and increased risk of type 2 diabetes (T2D). Prediabetes, which increases T2D and cardiovascular disease risk, is present in 45-50% of mid-life adults. The gut microbiota may link ultra-processed food (UPF) with inflammation and T2D risk. METHODS: Following a 2-week standardized lead-in diet (59% UPF), adults aged 40-65 years will be randomly assigned to a 6-week diet emphasizing either UPF (81% total energy) or non-UPF (0% total energy). Measurements of insulin sensitivity, 24-h and postprandial glycemic control, gut microbiota composition/function, fecal short chain fatty acids, intestinal inflammation, inflammatory cytokines, and vascular function will be made before and following the 6-week intervention period. Prior to recruitment, menus were developed in order to match UPF and non-UPF conditions based upon relevant dietary factors. Menus were evaluated for palatability and costs, and the commercial additive content of study diets was quantified to explore potential links with outcomes. RESULTS: Overall diet palatability ratings were similar (UPF = 7.6 ± 1.0; Non-UPF = 6.8 ± 1.5; Like Moderately = 7, Like Very Much = 8). Cost analysis (food + labor) of the 2000 kcal menu (7-d average) revealed lower costs for UPF compared to non-UPF diets ($20.97/d and $40.23/d, respectively). Additive exposure assessment of the 2000 kcal UPF diet indicated that soy lecithin (16×/week), citric acid (13×/week), sorbic acid (13×/week), and sodium citrate (12×/week) were the most frequently consumed additives. CONCLUSIONS: Whether UPF consumption impairs glucose homeostasis in mid-life adults is unknown. Findings will address this research gap and contribute information on how UPF consumption may influence T2D development.
Subject(s)
Diabetes Mellitus, Type 2 , Gastrointestinal Microbiome , Adult , Humans , Food, Processed , Inflammation , Homeostasis , Glucose , Diet , Fast FoodsABSTRACT
People with overweight and obesity tend to both underreport dietary energy intake and experience weight stigma. This exploratory pilot study aimed to determine the relationship between weight bias and weight stigma and energy intake reporting accuracy. Thirty-nine weight-stable adults with BMI ≥ 25 completed three 24 h dietary recalls; indirect calorimetry to measure resting metabolic rate; a survey measuring weight stigma, psychosocial constructs, and physical activity; and a semi-structured qualitative interview. Multiple linear regression was used to determine if weight bias internalization, weight bias toward others, and experiences of weight stigma were predictive of the accuracy of energy reporting. A thematic analysis was conducted for the qualitative interviews. Weight stigma was reported by 64.1% of the sample. Weight stigma constructs did not predict the accuracy of energy intake reporting. People with obesity underreported by a mean of 477 kcals (p = 0.02). People classified as overweight overreported by a mean of 144 kcals, but this was not significant (p = 0.18). Participants reported a desire to report accurate data despite concerns about reporting socially undesirable foods. Future research should quantify the impact of weight stigma on energy reporting in 24 h recalls using a larger, more diverse sample size and objective measures like doubly labeled water for validation.
Subject(s)
Overweight , Weight Prejudice , Adult , Humans , Pilot Projects , Obesity , DietABSTRACT
Expert groups recommend that populations adopt dietary patterns higher in whole, plant-based foods and lower in red and processed meat as a high-impact climate action. Yet, there is limited understanding of populations' willingness to adopt plant-rich dietary patterns. This study examined United States (US) adults' perceptions, beliefs, and behaviors towards plant-rich dietary patterns and practices over a decade. Fifteen questions from the International Food Information Council's Food and Health Surveys (2012-2022) were analyzed across four sustainability domains (i.e., human health, environmental, social, and economic domains). Most respondents had favorable perceptions of environmentally sustainable food and beverages, but sustainability influenced less than half of consumers' purchase decisions. Plant-rich dietary pattern adherence increased across survey years (12.1% [2019] to 25.8% [2022], p < 0.001). One-quarter (28.1%) of Americans reported reducing their red meat intake over 12 months (2020-2022). Yet, another 15.5% reported greater red meat intake, and 18.8% reported greater plant-based meat alternative (PBMA) intake over 12 months. The percentage of respondents who reported greater red meat and PBMA consumption in the previous 12 months significantly increased across the years surveyed (2020-2022, p < 0.05). IFIC Survey findings highlight growing US consumer awareness of health, environmental, and social sustainability but low adoption of plant-rich dietary patterns and practices. Government leadership and coordinated actions by health professionals, civil society, and businesses are needed to educate and incentivize Americans to adopt plant-rich dietary behaviors, and greater industry transparency is needed to show how food and beverage products support human and planetary health.
Subject(s)
Feeding Behavior , Adult , Humans , United States , Meat , Plants , Health Surveys , DietABSTRACT
BACKGROUND: The greatest age-related weight gain occurs in the early/mid-20s. Overall dietary quality among adolescents and emerging adults (age 18-25) is poor, with ultra-processed foods (UPF) representing more than two-thirds of adolescents' total energy intake (i.e., 68%). UPF consumption may impact cognitive and neurobiological factors that influence dietary decision-making and energy intake (EI). To date, no research has addressed this in this population. METHODS: Participants aged 18-25 will undergo two 14-day controlled feeding periods (81% UPF, 0% UPF) using a randomly assigned crossover design, with a 4-week washout between conditions. Brain response to a UPF-rich milkshake, as well as behavioral measures of executive function, will be evaluated before and after each diet. Following each diet, measurements include ad libitum buffet meal EI, food selection, eating rate, and eating in the absence of hunger (EAH). Prior to initiating recruitment, controlled diet menus, buffet, and EAH snacks were developed and evaluated for palatability. Sensory and texture attributes of buffet and EAH snack foods were also evaluated. RESULTS: Overall diet palatability was rated "like very much" (8)/"like moderately"(7) (UPF: 7.6 ± 1.0; Non-UPF: 6.8 ± 1.5). Subjective hardness rating (range = 1-9 [1 = soft, 9 = hard] was similar between UPF and Non-UPF buffet and snack items (UPF:4.22 ± 2.19, Non-UPF: 4.70 ± 2.03), as was the objective measure of hardness (UPF: 2874.33 ± 2497.06 g, Non-UPF: 2243.32 ± 1700.51 g). CONCLUSIONS: Findings could contribute to an emerging neurobiological understanding of the effects of UPF consumption including energy overconsumption and weight gain among individuals at a critical developmental stage.
Subject(s)
Fast Foods , Food, Processed , Adolescent , Adult , Humans , Young Adult , Diet , Energy Intake , Weight Gain , Cross-Over StudiesABSTRACT
BACKGROUND: Dietary choices are an important avenue for improving food system sustainability. The Planetary Health Diet was proposed by the EAT-Lancet Commission as a reference healthy and sustainable dietary pattern. OBJECTIVES: To assess adherence to the Planetary Health Diet among United States adults, this study developed and evaluated the Planetary Health Diet Index for the United States (PHDI-US), adapted from the original PHDI validated in the Brazilian population. METHODS: The PHDI-US has 16 components with scores ranging between 0 and 150, and higher scores indicate better adherence to the Planetary Health Diet. Cross-sectional dietary data from 4741 participants of the National Health and Nutrition Examination Survey 2017-2018 were used to assess the validity and reliability of the PHDI-US. RESULTS: Validity and reliability tests were acceptable overall: principal component analysis identified 6 components; total PHDI-US and Healthy Eating Index-2015 scores were positively associated (ß = 0.67, standard error = 0.03, P <0.0001; R2 = 0.39); concurrent-criterion validity analyses identified significantly lower scores among males, everyday smokers, and younger adults; and the Cronbach's α value was 0.54. The average PHDI-US score was 46.7 out of 150, indicating that the diets of United States adults were far from meeting Planetary Health Diet recommendations. Based on component PHDI-US scores, many United States adults may be able to enhance the quality and sustainability of their diets by increasing intake of plant-based foods, including whole grains, nuts and peanuts, legumes, fruits, and vegetables, and reducing intake of animal-based foods, including red and processed meats. CONCLUSIONS: The PHDI-US is a new tool that can assess adherence to the Planetary Health Diet and identify key aspects of United States adults' diets that could be altered to potentially improve dietary sustainability and quality.
Subject(s)
Diet , Fabaceae , Male , Animals , Adult , Humans , United States , Nutrition Surveys , Cross-Sectional Studies , Reproducibility of Results , VegetablesABSTRACT
OBJECTIVE: To assess the validity of the Market Basket Analysis Tool (MBAT) for food environment quality within various retail environments compared to the Nutrition Environment Measures Survey in Stores (NEMS-S). METHODS: In-store assessments using the MBAT and the NEMS-S on the same day in a given store were conducted in grocery stores, corner stores, pharmacies, and dollar stores in a metropolis, and urban and rural counties across 4 states: Louisiana, Mississippi, North Carolina, and Virginia. Descriptive statistics, correlations, and ANOVAs were used to assess store location, store type differences, and MBAT and NEMS-S scores. RESULTS: Market Basket Analysis Tool and NEMS-S data were collected from 114 stores. Market Basket Analysis Tool and NEMS-S total and all individual component scores were significantly correlated (râ¯=â¯0.84, P ≤ 0.0001; r range, 0.51-0.88; P ≤ 0.0001). CONCLUSIONS AND IMPLICATIONS: The MBAT offers a methodology to measure the food retail environment focusing on the availability of healthful food items with a reduced training time and streamlined data collection compared with the NEMS-S. Future work can assess the completion time of the MBAT compared with the NEMS-S and the ability of the MBAT to detect changes in food environment quality post healthy food retail interventions.
Subject(s)
Food Assistance , Commerce , Food , Food Supply , Humans , Nutrition Surveys , Rural PopulationABSTRACT
Food insecurity, which disproportionately impacts mothers, can have chronic consequences on physical and mental health. There is a relationship between food insecurity and mental health, but the relationship's mechanisms are unclear. This study aimed to understand how mental health outcomes differ by food insecurity severity and race among Virginia mothers. A cross-sectional survey employed previously validated food security status measures, physical and mental health, social support, and food coping strategies. Results were analyzed using descriptive statistics, Spearman's rank-order correlations, linear regression, and chi-squared with effect sizes. Overall, respondents (n = 1029) reported worse mental health than the U.S. average (44.3 ± 10.1 and 50, respectively). There was a large effect of food security on mental health (d = 0.6), with worse mental health outcomes for mothers experiencing very low food security (VLFS) than low food security (LFS; p < 0.001). There was a small effect of race on mental health (φc = 0.02), with Black mothers having better mental health than White mothers (p < 0.001). Compared to mothers experiencing LFS, mothers experiencing VLFS had less social support (d = 0.5) and used more food coping strategies, especially financial strategies (d = −1.5; p < 0.001). This study suggests that food-insecure mothers experience stressors and lack adequate social support, which is even more distinct for mothers experiencing VLFS.
Subject(s)
Food Supply , Mothers , Cross-Sectional Studies , Female , Food Insecurity , Food Security , Humans , Mental Health , VirginiaABSTRACT
The purpose of this communication is to describe the preliminary evaluation of the Virginia Fresh Match (VFM) financial incentive program for fresh fruits and vegetables for Virginia Supplemental Nutrition Assistance Program shoppers and to determine if there were differences in incentive outcomes by race. In this cross-sectional study, a questionnaire was administered to shoppers using Virginia Fresh Match incentives at participating farmers markets and community-based food retail outlets. Repeated measures ANOVAs were used to detect differences in fruit and vegetable consumption between demographic groups over time. Chi-square tests were used to determine if there were associations between race and perceived impact of VFM incentives on making food last and the attribution of VFM incentives to changes in fruit and vegetable consumption frequency. Frequency of fruit and vegetable intake was significantly higher during VFM incentive use, with a difference of 1.17 ± 0.07 and 1.07 ± 0.07 on a Likert scale measure, respectively (p ≤ 0.001). There were racial differences in assertions that VFM incentives helped food to last. VFM incentives were effective at increasing fruit and vegetable consumption, but racial differences should be considered in the administration of VFM to avoid reinforcing systems or approaches that may contribute to disparities in food access and food security.
Subject(s)
Fruit , Vegetables , Cross-Sectional Studies , Demography , Motivation , VirginiaABSTRACT
BACKGROUND: Improving beverage patterns of children and adolescents is recommended for combatting obesity and reducing disease risk. Therefore, it is important to assess beverage intake quality in this population. For adults, the Healthy Beverage Index (HBI) was created to assess beverage intake quality, but a similar tool did not exist for children and adolescents. OBJECTIVE: The objective was to develop an HBI for US Children and Adolescents (HBI-CA), and then assess the validity and reliability of this tool. DESIGN: Modeled after the adult HBI, age-specific, evidence-based beverage recommendations were compiled. Ten components were included to assess beverage intake quality. Validity and reliability were assessed using cross-sectional data and methods similar to those used for the evaluation of the Healthy Eating Index. PARTICIPANTS: The 2015-2016 National Health and Nutrition Examination Survey provided 24-hour dietary recall data for 2,874 children and adolescents aged 2 to 19 years. MAIN OUTCOME MEASURES: HBI-CA scores were the main outcome measure. STATISTICAL ANALYSES PERFORMED: To assess validity, independent t tests were used to determine differences in HBI-CA component and total scores among groups, and principal component analysis was completed to examine multidimensionality of the HBI-CA. Pearson bivariate correlations were used to assess reliability. RESULTS: The HBI-CA produced a (mean ± standard error) total score of 69.2 ± 0.8, which is similar to the adult HBI mean total score of 63. Principal component analysis identified six factors, indicating the multidimensionality of the HBI-CA, with more than one combination of components contributing to variation in total scores. Most HBI-CA components were significantly correlated to the total score, with met fluid requirements, total beverage energy, sugar-sweetened beverage, and water components demonstrating the strongest correlations (r range = 0.335-0.735; P ≤ 0.01). CONCLUSIONS: The results provide preliminary evidence to support the validity and reliability of the HBI-CA. If future research establishes the predictive validity and sensitivity of the HBI-CA, this tool could be useful to quantify the beverage intake quality of children and adolescents.
Subject(s)
Beverages/statistics & numerical data , Diet Surveys/standards , Diet, Healthy/standards , Adolescent , Child , Child, Preschool , Cross-Sectional Studies , Female , Humans , Male , Nutrition Surveys , Principal Component Analysis , Reproducibility of Results , United States , Young AdultABSTRACT
The δ13C value of blood is a novel proposed biomarker of added sugars (AS) intake. AS prediction equations using either a single- (δ13C) or dual-isotope model (δ13C and δ15N) were previously developed in an adult population with high AS intake living in southwest Virginia (reference group). The purpose of this investigation was to test the δ13C single- and δ13C and δ15N dual-isotope prediction equations for AS intake in adults with a lower mean AS intake and different demographic characteristics (test group). The blood samples for the reference (n = 257 for single-isotope, n = 115 for dual-isotope) and test groups (n = 56) were analyzed for δ13C and δ15N values using natural abundance stable isotope mass spectrometry and were compared to reported dietary AS intake. When the δ13C single-isotope equation was applied to the test group, predicted AS intake was not significantly different from reported AS intake (mean difference ± standard error = -3.6 ± 5.5 g, Z = -0.55, p = 0.51). When testing the dual-isotope equation, predicted AS was different from reported AS intake (mean difference ± SEM = 13.0 ± 5.4 g, Z = -2.95, p = 0.003). δ13C value was able to predict AS intake using a blood sample within this population subset. The single-isotope prediction equation may be an alternative method to assess AS intake and is more objective, cost-feasible, and efficient than traditional dietary assessment methods. However, more research is needed to assess this biomarker with rigorous study designs such as controlled feeding.
Subject(s)
Carbon Isotopes/blood , Dietary Sugars/analysis , Eating/physiology , Models, Theoretical , Nutrition Assessment , Adult , Biomarkers/blood , Feasibility Studies , Female , Humans , Male , Middle Aged , Nitrogen Isotopes/blood , Predictive Value of Tests , Randomized Controlled Trials as Topic , Self Report , VirginiaABSTRACT
PURPOSE OF REVIEW: Improving beverage patterns is important for promoting the health of children and adolescents. Food preferences can begin developing at a young age; thus, children and adolescents should be provided healthy beverages in accordance with current recommendations. The purpose of this review is to identify and summarize existing beverage recommendations for children and adolescents. This review also discusses the health impacts of beverages and how beverage consumption has changed among children and adolescents over time. RECENT FINDINGS: The mean number of calories that children and adolescents are consuming from beverages on a given day has declined in recent years. However, sugar-sweetened beverages (SSB) are the primary source of added sugars in this population. Therefore, SSB consumption remains a concern, and reducing the intake of SSB is still considered a top priority for helping to improve dietary quality. This review uniquely compiles recommendations into one convenient table for the entire age range of 0-19 years and includes recommendations that can be more adequately individualized. Beverage categories where beverage recommendations from authoritative sources are lacking have also been identified. Potential methods that can be implemented to improve beverage patterns and current public policy recommendations have been discussed to provide actionable steps that public health professionals can utilize in practice. The comprehensive table of beverage recommendations could be useful for professionals promoting the health of children and adolescents in research, clinical, and public health settings.
Subject(s)
Beverages , Public Health , Adolescent , Adult , Beverages/adverse effects , Child , Child, Preschool , Diet , Food Preferences , Humans , Infant , Infant, Newborn , Knowledge Bases , Young AdultABSTRACT
The Pan American Health Organization (PAHO) Strategic Plan 2020-2025 committed to reduce children's consumption of energy-dense nutrient-poor food and beverage products high in fat, sugar and salt (HFSS) and promote healthy eating patterns to reduce malnutrition in all forms. This paper describes the capacity-building needs in PAHO's Member States to restrict the marketing of HFSS food and beverages to children. We asked Ministries of Health officials or national institutes/departmental representatives (n = 35) to complete a 28-item web-based survey (January to July 2020). Capacity-building needs were assessed using an adapted version of the World Health Organization's government capacity-building framework with three modules: public health infrastructure, policies and information systems. Notable achievements for the PAHO's Plan of Action were identified. State representatives reported strong infrastructure and information systems; however, policy improvements are needed to increase comprehensive national responses. These include using a constitutional health and human rights approach within the policies, policies that document conflict of interest from non-state actors, and strengthening regulatory oversight for digital media platforms. These findings provide baseline data and we suggest priorities for further action to strengthen national governments' capacity-building and to accelerate the development, implementation, and monitoring systems to restrict the marketing of HFSS food and non-alcoholic beverages to children in the region of the Americas.
Subject(s)
Capacity Building , Internet , Beverages , Child , Food , Government , Humans , MarketingABSTRACT
BACKGROUND: In 2015, the Partnership for a Healthier America launched the branded Fruits & Veggies (FNV) Campaign to apply a unique industry-inspired marketing approach to promote fruit and vegetable sales and intake to moms and teens in two US pilot markets: Fresno, California and Hampton Roads, Virginia. The aims of this cross-sectional study were to: 1) assess brand awareness and fruit- and vegetable-related outcomes among FNV Campaign target audiences in the California and Virginia market locations; and 2) examine whether reported awareness of the FNV Campaign was associated with differences in fruit- and vegetable-related cognitive and behavioral outcomes. METHODS: Data for this cross-sectional study were collected using an online survey administered to a non-probability convenience sample (n = 1604; February-July 2017) of youth aged 14-20 years (n = 744) and moms aged 21-36 years (n = 860) in the two pilot markets. Descriptive statistics were computed and outcomes compared between unaware and aware respondents, controlling for sociodemographic covariates. Multivariate analysis of covariance (MANCOVA) was conducted to assess whether fruit- and vegetable-related attitude, belief, and encouragement outcomes differed by FNV Campaign awareness; logistic regression was used to examine associations between FNV brand awareness and dichotomous variables (fruit- and vegetable-related behavioral intentions, trying new fruits and vegetables); and ANCOVA was used to assess associations with daily fruit and vegetable intake frequency. RESULTS: Approximately 20% (n = 315/1604) of respondents reported awareness of the FNV Campaign. Youth that reported awareness of the FNV Campaign (n = 167, 22.4%) had higher intentions to buy (p = 0.003) and eat (p = 0.009) fruits and vegetables than unaware respondents. Mothers that reported awareness of the FNV Campaign (n = 148, 17.2%) reported greater encouragement for friends and family to eat fruits and vegetables (p = 0.013) and were approximately 1.5 times more likely to report trying a new fruit or vegetable (p = 0.04) than mothers unaware of the Campaign. Daily fruit and vegetable intake frequency did not differ by Campaign awareness. CONCLUSIONS: FNV Campaign awareness was associated with limited but positive short- and intermediate-term cognitive and behavioral outcomes among target audience respondents. These findings can inform future research to enhance understanding and improve the FNV Campaign as it is expanded to new markets nationwide.
Subject(s)
Fruit , Vegetables , Adolescent , California , Cross-Sectional Studies , Diet , Feeding Behavior , Female , Humans , VirginiaSubject(s)
Dietetics/methods , Overweight/psychology , Professional-Patient Relations , Social Stigma , Weight Perception , Bias , HumansABSTRACT
Fluid intake recommendations have been established for the athletic population in order to promote adequate hydration. The Beverage Intake Questionnaire (BEVQ-15) is a quick and reliable food frequency questionnaire that quantifies habitual beverage intake, which has been validated in children, adolescents, and adults. However, no validated beverage consumption questionnaire is available for collegiate athletes. Urine color (UC), while feasible for determining hydration status, has not been validated within a variety of collegiate athletes. The purpose of this investigation was to evaluate the comparative validity and reliability of pragmatic methods to rapidly assess BEVQ-15 and UC rating in U.S. Division I collegiate athletes. Student-athletes (n = 120; 54% females; age 19 ± 1 years) from two universities were recruited to complete three study sessions. At the first and third sessions, the participants completed the BEVQ-15 and provided a urine sample to determine UC and urinary specific gravity. All sessions included completion of a 24-hr dietary recall. Total fluid intake (fl oz) was 111 ± 107 and 108 ± 42 using the BEVQ-15 and the mean of three 24-hr dietary recalls, respectively, which was not different between methods (p > .05). There were moderate associations between the BEVQ-15 and dietary recall results for total beverage intake fl oz and kcal(r = .413 and r = 4.65; p ≤ .05, respectively). Strong associations were noted between both researcher-rated and participant-rated UC with urinary specific gravity measures (r = .675 and r = .884; p ≤ .05, respectively). Therefore, these rapid assessment methods demonstrated acceptable validity and may be used as practical methods to determine whether athletes are meeting their hydration recommendations.
Subject(s)
Beverages , Dehydration/prevention & control , Diet Surveys , Drinking Behavior , Adolescent , Biomarkers/urine , Color , Female , Humans , Male , Reproducibility of Results , Urinalysis , Young AdultABSTRACT
Frequent monitoring of hydration status may help to avoid the adverse effects of dehydration. Other than urine color assessment, hydration assessment methods are largely impractical for the general population and athletes to implement on a routine basis. Despite its widespread use, the validity of urine color as an indicator of hydration status has not been systematically evaluated. The objective of this systematic review is to determine the validity of urine color evaluation as a hydration status assessment method in the general adult population, older adults, and athletes. Using the PRISMA guidelines, electronic databases were searched to identify original research articles of all study design types for inclusion. Of the 424 articles screened, 10 met inclusion criteria. Most studies compared urine color to either urinary specific gravity or urine osmolality, and reported significant associations (r) ranging from 0.40 to 0.93. Lower correlations were noted in studies of adults aged >60 years. Studies generally reported a high sensitivity of urine color as a diagnostic tool for detecting dehydration and supported the ability of this method to distinguish across categories of hydration status. Research is needed to determine if clinicians, patients, and clients can accurately utilize this method in clinical and real-world settings. Future research is also needed to extend these findings to other populations, such as children.Key teaching pointsInadequate hydration can lead to impairments in physical performance and cognitive function.Methods used to assess hydration status include plasma/serum osmolality, urinary specific gravity (USG), urine osmolality (Uosm), change in body weight, urine volume, and urine color.Urine color assessment is a practical method that is routinely used in clinical, athletic, and other settings. The validity of this method has not been systemically evaluated.Available research was limited to 10 articles.Validity of this method was generally supported; however, research has not investigated the validity of this method by clinicians, patients and clients.
Subject(s)
Athletes , Dehydration , Aged , Biomarkers , Child , Dehydration/diagnosis , Humans , Osmolar Concentration , Urinalysis , UrineABSTRACT
Data are lacking on whether non-nutritive sweeteners (NNS) can be used as a strategy to support decreases in sugar-sweetened beverage (SSB) consumption. The purpose of this secondary analysis of a 6-month SSB-reduction intervention was to explore changes in NNS consumption patterns in Talking Health participants within the SIPsmartER (n = 101) intervention. Additionally, participant characteristics were compared for three SSB-NNS change groups (decrease SSB/increase NNS; decrease SSB/no increase in NNS; increase/no change in SSB/regardless of NNS). There was a significant increase in aspartame and total NNS intake for participants (mean daily mg increases of 37.2 ± 13.9 and 63.7 ± 18.5, respectively). With the exception of sex, no differences in participant characteristics were found between the three SSB-NNS change groups. Furthermore, no significant changes in weight or body mass index (BMI) were demonstrated between SSB-NNS change groups over time. Diet soda was the most commonly consumed source of NNS; however, other dietary sources of NNS also contributed to intake. At 6 months, intake of sucralose and saccharin were primarily from dietary sources other than diet sodas (94% and 100%, respectively). These findings suggest that NNS may be a feasible strategy to help reduce SSB consumption. This study supports the need to consistently quantify and identify NNS intake, beyond using diet soda intake as a proxy for NNS intake and grouping all NNS types into one variable, to more accurately address the potential health effects of NNS.