Association between Depressive Symptoms, Physical Activity, and Health Factors in Hispanic Emerging Adults.

Physical activity is a modifiable lifestyle behavior known for reducing symptoms of and being a risk factor for depression and mental health disorders. However, emerging adults (ages 18-25) struggle to meet recommended amounts. In this study, we explore the association between physical activity, depressive symptoms, and health factors in 137 Hispanic emerging adults. Using a cross-sectional survey design, sociodemographic information, depressive symptoms (CES-D score), physical activity (IPAQ score), body composition, and blood pressure measures were obtained. Statistical analyses included correlation and regression analyses. More than half of the participants demonstrated depressive symptomology (59.1%) and body fat percentage greater than 25% (64.2%). Body fat percentage, lean body mass, stress, and heart rate demonstrated notable associations with depressive symptoms and physical activity. When measured continuously and categorically, IPAQ was not a significant predictor of depressive symptoms. When used as a binary variable with a cutoff of 600 MET min/week, IPAQ score revealed a negative relationship with CES-D score (ß = -0.169, SE = 2.748, p = 0.034). Our results indicate that a threshold of physical activity, 600 MET min/week, may confer protective effects against depressive symptoms. Future research should investigate the context and quality of physical activity to address mental health disparities in this underrepresented population.

Vitamin D supplementation for women during pregnancy.

BACKGROUND: Vitamin D supplementation during pregnancy may help improve maternal and neonatal health outcomes (such as fewer preterm birth and low birthweight babies) and reduce the risk of adverse pregnancy outcomes (such as severe postpartum haemorrhage). OBJECTIVES: To examine whether vitamin D supplementation alone or in combination with calcium or other vitamins and minerals given to women during pregnancy can safely improve certain maternal and neonatal outcomes. SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Trials Register (which includes results of comprehensive searches of CENTRAL, MEDLINE, Embase, CINAHL, ClinicalTrials.gov, the WHO International Clinical Trials Registry Platform, and relevant conference proceedings) (3 December 2022). We also searched the reference lists of retrieved studies. SELECTION CRITERIA: Randomised and quasi-randomised trials evaluating the effect of supplementation with vitamin D alone or in combination with other micronutrients for women during pregnancy in comparison to placebo or no intervention. DATA COLLECTION AND ANALYSIS: Two review authors independently i) assessed the eligibility of studies against the inclusion criteria, ii) assessed trustworthiness based on pre-defined criteria of scientific integrity, iii) extracted data from included studies, and iv) assessed the risk of bias of the included studies. We assessed the certainty of the evidence using the GRADE approach. MAIN RESULTS: The previous version of this review included 30 studies; in this update, we have removed 20 of these studies to 'awaiting classification' following assessments of trustworthiness, one study has been excluded, and one new study included. This current review has a total of 10 included studies, 117 excluded studies, 34 studies in awaiting assessment, and seven ongoing studies. We used the GRADE approach to assess the certainty of the evidence. This removal of the studies resulted in evidence that was downgraded to low-certainty or very low-certainty due to study design limitations, inconsistency between studies, and imprecision. Supplementation with vitamin D compared to no intervention or a placebo A total of eight studies involving 2313 pregnant women were included in this comparison. We assessed four studies as having a low risk of bias for most domains and four studies as having high risk or unclear risk of bias for most domains. The evidence is very uncertain about the effect of supplementation with vitamin D during pregnancy compared to placebo or no intervention on pre-eclampsia (risk ratio (RR) 0.53, 95% confidence interval (CI) 0.21 to 1.33; 1 study, 165 women), gestational diabetes (RR 0.53, 95% CI 0.03 to 8.28; 1 study, 165 women), preterm birth (< 37 weeks) (RR 0.76, 95% CI 0.25 to 2.33; 3 studies, 1368 women), nephritic syndrome (RR 0.17, 95% CI 0.01 to 4.06; 1 study, 135 women), or hypercalcaemia (1 study; no cases reported). Supplementation with vitamin D during pregnancy may reduce the risk of severe postpartum haemorrhage; however, only one study reported this outcome (RR 0.68, 95% CI 0.51 to 0.91; 1 study, 1134 women; low-certainty evidence) and may reduce the risk of low birthweight; however, the upper CI suggests that an increase in risk cannot be ruled out (RR 0.69, 95% CI 0.44 to 1.08; 3 studies, 371 infants; low-certainty evidence). Supplementation with vitamin D + calcium compared to no intervention or a placebo One study involving 84 pregnant women was included in this comparison. Overall, this study was at moderate to high risk of bias. Pre-eclampsia, gestational diabetes, and maternal adverse events were not reported. The evidence is very uncertain about the effect of supplementation with vitamin D and calcium on preterm birth (RR not estimable; very low-certainty evidence) or for low birthweight (RR 1.45, 95% CI 0.14 to 14.94; very low-certainty evidence) compared to women who received placebo or no intervention. Supplementation with vitamin D + calcium + other vitamins and minerals versus calcium + other vitamins and minerals (but no vitamin D) One study involving 1298 pregnant women was included in this comparison. We assessed this study as having a low risk of bias in all domains. Pre-eclampsia was not reported. The evidence is very uncertain about the effect of supplementation with vitamin D, calcium, and other vitamins and minerals during pregnancy compared to no vitamin D on gestational diabetes (RR 0.42, 95% CI 0.10 to 1.73; very low-certainty evidence), maternal adverse events (hypercalcaemia no events and hypercalciuria RR 0.25, 95% CI 0.02 to 3.97; very low-certainty evidence), preterm birth (RR 1.04, 95% CI 0.68 to 1.59; low-certainty evidence), or low birthweight (RR 1.12, 95% CI 0.82 to 1.51; low-certainty evidence). AUTHORS' CONCLUSIONS: This updated review using the trustworthy assessment tool removed 21 studies from the previous update and added one new study for a total of 10 included studies. In this setting, supplementation with vitamin D alone compared to no intervention or a placebo resulted in very uncertain evidence on pre-eclampsia, gestational diabetes, preterm birth, or nephritic syndrome. It may reduce the risk of severe postpartum haemorrhage; however, only one study reported this outcome. It may also reduce the risk of low birthweight; however, the upper CI suggests that an increase in risk cannot be ruled out. Supplementation with vitamin D and calcium versus placebo or no intervention resulted in very uncertain evidence on preterm birth and low birthweight. Pre-eclampsia, gestational diabetes, and maternal adverse events were not reported in the only study included in this comparison. Supplementation with vitamin D + calcium + other vitamins and minerals versus calcium + other vitamins and minerals (but no vitamin D) resulted in very uncertain evidence on gestational diabetes and maternal adverse events (hypercalciuria) and uncertain evidence on preterm birth and low birthweight. Pre-eclampsia was not reported in the only study included in this comparison. All findings warrant further research. Additional rigorous, high-quality, and larger randomised trials are required to evaluate the effects of vitamin D supplementation in pregnancy, particularly in relation to the risk of maternal adverse events.

Disordered Eating Attitudes and Their Association with Age, BMI, Stress, and Diet in College Students.

OBJECTIVE: College students are at risk of disordered eating, particularly students with overweight/obesity and with higher stress, but little is known about how disordered eating may be related to diet. This study evaluated the associations between the Disordered Eating Attitudes Scale (DEAS) and age, BMI, stress, and diet. METHODS: This is a secondary analysis of the baseline data in participants from the Snackability Trial. Participants completed a questionnaire on socio-demographics, DEAS, and snacking, self-reported their weight and height (to calculate BMI), and completed two 24 h non-consecutive dietary recalls (to calculate diet quality using HEI-2015 and snack quality score using an algorithm developed by our group). Associations between variables were assessed with Spearman correlations. RESULTS: A total of 140 participants completed all assessments. The median age was 21.0 and the median BMI was 28.5 kg/m2 (43.7% had overweight and 41.5% had obesity). A total of 86.4% were females, 41.4% were white, 51.4% were low-income, and 30.7% were Hispanic/Latino. The total DEAS and the subscale 'Relationship with food' were positively correlated with stress and BMI (p < 0.05) but inversely correlated with HEI-2015 (p < 0.05). The subscales 'Restrictive and compensatory behaviors' and 'Concern about food and weight gain' were also positively correlated with stress (p < 0.001). CONCLUSION: College students with higher disordered eating attitudes also had higher stress and BMI but poorer diet quality. Interventions may be needed for this group to manage stress and improve weight and diet quality, as well as promote awareness about disordered eating attitudes.

Effect of using the snackability app on snack quality among US college students with overweight and obesity: A randomized controlled trial.

OBJECTIVE: To determine if using the Snackability app improves snack intake among college students. PARTICIPANTS: US college students with overweight/obesity were recruited in June 2020-April 2021. METHODS: A randomized controlled trial was conducted to test the Snackability app use for 12 wk on snack scores (calculated from the app) compared to controls. We also explored the effect on diet quality (Healthy Eating Index-2015) and weight. Outcomes were compared between the intervention and the control groups at 4, 8, and 12 wk using repeated measures ANOVA. RESULTS: Participants in the app group significantly increased snack score at week 4 (p < 0.001) and week 8 (p = 0.015) and increased HEI-2020 score (p < 0.001) at week 4 compared to controls. The first 4 wk had the highest app usage. No significant differences were seen in body weight. CONCLUSIONS: The Snackability app can be used as a tool to help improve snack and diet quality in this group.

Associations between ultraprocessed and minimally processed snacks consumption and overweight/obesity among college students in South Florida.

OBJECTIVE: Evaluate the association between ultraprocessed and minimally processed snack consumption and overweight/obesity among college students. PARTICIPANTS: College students. METHODS: Cross-sectional study. Participants completed an online survey with questions on socio-demographics, beverages and snacks consumption, and weight status. ANCOVA and logistic regression was used; analyses were adjusted for age, sex, race/ethnicity, physical activity, and sleep duration. RESULTS: A total of 435 students completed all questions in the survey. Most students were female (73.3%), Hispanics (61.1%), had a mean age of 24.7-year old and 40% had overweight/obesity. Those with overweight/obesity also had higher odds of consuming soft drinks in higher frequency and quantity than those without overweight/obesity (p < .05). Never consuming unsweetened yogurt/cheese and lower frequency and consumption of fruits were associated with higher odds of overweight/obesity (p < .05). CONCLUSION: Higher frequency and consumption of soft drinks while lower frequency and consumption of unsweetened yogurt/cottage cheese and fruits were associated with overweight/obesity.

Perceived Health and Diet Quality Among Hispanics in South Florida.

There is limited information if perceived health is associated with diet quality in Hispanics. A cross-sectional study was conducted to evaluate is health perception is associated with diet quality among 109 adults in South Florida. Individuals conducting a primary grocery shopping event were asked to complete a survey about their perceived health and to provide a picture of their grocery receipt to estimate diet quality using the Grocery Purchase Quality Index 2016 (GPQI-2016). Data was analyzed using analysis of covariance, adjusting for age, gender, ethnicity, and household size. Mean age was 45.1 ± 13.5 years, 74% were female, 79% were Hispanics, and 36.7% perceived themselves as having 'Good' health. The total average GPQI-2016 score was 40.9 ± 1.0. Perceived health was not significantly associated with total average GPQI-2016 score (p > 0.05). There was no association between perceived health and total diet quality in this sample of Hispanic adults.

Disability and COVID-19: Challenges, testing, vaccination, and postponement and avoidance of medical care among minoritized communities.

BACKGROUND: People with disabilities face heightened vulnerability to COVID-19. OBJECTIVE: This study investigated (1) the relationships between disability and COVID-19-related challenges, testing, vaccination, and infection and (2) predictors of loss of healthcare coverage and postponement and avoidance of medical care during the pandemic. METHODS: This cross-sectional study was conducted in Miami, Florida, between March 2021 and February 2022 as part of the NIH Rapid Acceleration of Diagnostics-Underserved Populations initiative. Disability was defined using a standard measure that assesses six universal functions. Participants reported sociodemographic data, COVID-19 testing, infection history, challenges, and healthcare history. Vaccinations were confirmed with medical records and COVID-19 positivity was assessed using real-time reverse transcription-polymerase chain reaction. Statistical analyses included multivariable logistic regression. RESULTS: Among 1,689 participants with a median age of 57.0, 50.6% were male, and 48.9% were non-Hispanic Black. Disability was associated with greater odds of all assessed COVID-19 challenges: healthcare (aOR:1.60; 95% CI:1.23-2.07), housing (aOR:2.15; 95% CI:1.62-2.87), insufficient food (aOR:1.97; 95% CI:1.54-2.52), water scarcity (aOR:2.33; 95% CI:1.60-3.37), medications (aOR:2.04; 95% CI:1.51-2.77), and transportation (aOR:2.56; 95% CI:1.95-3.36). Those reporting employment disability were less likely to have received COVID-19 testing (81.1% vs. 85.3%, p = 0.026) or to have history of COVID-19 positivity (aOR:0.63; 95% CI:0.44-0.92). Disability predicted avoidance (aOR:2.76; 95% CI:1.95-3.91) and postponement (aOR: 2.24; 95% CI:1.72-2.91) of medical care. CONCLUSIONS: Disability is associated with higher odds of COVID-19 challenges and postponement and avoidance of medical care. Those reporting employment disability had a lower likelihood of COVID-19 testing. Public health responses to healthcare crises should prioritize the special challenges of people living with disabilities.

Acceptability and Ease of Use of an Educational Website among Women, Infants, and Children Program Participants in Puerto Rico: A Pilot Study.

OBJECTIVE: To evaluate a website for an educational intervention among participants of the Baby-Act Trial. Baby-Act is a community-based intervention to prevent infant obesity by promoting physical activity, sleep, and healthy eating behaviors in Women, Infants, and Children (WIC) program participants in Puerto Rico. The intervention was designed to be delivered through a mobile application, but after the study was launched, participants reported many difficulties, and an alternative educational platform was developed. METHODS: Participants of the WIC program completed a face-to-face structured interview consisting of several open-ended questions. After completing the interview, they were instructed on how to access the newly developed webpage and completed the lessons found therein. Then followed a survey that explored the overall experience. RESULTS: Nine participants were interviewed; they all agreed that the website was easy to access, registration was simple, and the webpage was clear; 8 were able to complete at least 1 lesson (1 participant had a very poor signal), and all 9 reported being confident in using the webpage and stated they would use it again. CONCLUSION: The study participants found this website to be user-friendly and a viable alternative for future educational intervention delivery to WIC participants.

Snacking behavior is associated with snack quality, overall diet quality, and body weight among US college students.

Snacking behavior may affect snack quality, overall diet quality, and body weight; however, the associations between these variables have not been studied among college students. The objective of this study was to associate snacking behaviors with snack quality, diet quality, and weight status among college students with overweight and obesity. We hypothesized that a higher snacking frequency, accessibility and availability of unhealthy snacks, and lack of knowledge would be associated with lower snack and diet quality, and higher weight. Participants (n = 140) completed a snack behavior questionnaire, three 24-hour dietary recalls to assess diet quality using Healthy Eating Index 2015 (HEI-2015), and snack score using an algorithm based on the US DA Smart Snack guidelines and reported weight and height to calculate body mass index (BMI). Analysis of variance and Pearson correlation was used in the analyses. After adjusting for confounders, snack frequency was not associated with snack score, HEI-2015 score, or BMI, but evening snacks had a significantly lower snack score compared with late afternoon snacks (P = .017). Also, those with more accessibility and availability of unhealthy snacks had a lower snack score (P = .001), lower HEI-2015 score (P = .006), and higher BMI (P = .019). Snacking for pleasure was significantly associated with a lower snack score (P = .037). Snack score was positively correlated with HEI-2015 score but not with BMI. In conclusion, late snacking, unhealthy snack environment, and snacking for pleasure were associated with lower snack and diet quality. These findings could be used in future intervention strategies to improve snacking behaviors and the food environment.

The association between hydration status and body composition in healthy children and adolescents.

OBJECTIVES: Children 10-20 years old in the US are currently obese, showing suboptimal hydration as 60% fail to meet the US Dietary Reference Intakes for water. Studies have shown a significant inverse association between hydration status and body composition in children, although most failed to use the Dual-X-Ray Absorptiometry Scan (DEXA), the gold standard for body composition. Limited studies used an objective marker to measure hydration, such as urine specific gravity (USG) from a 24-h urine collection. Therefore, this study aimed to examine the association between hydration status (measured from USG in a 24-h urine sample and assessed from three 24-h dietary recalls) and body fat % and lean mass (assessed from a DEXA scan) in children (10-13 years, n=34) and adolescents (18-20 years, n=34). METHODS: Body composition was measured using DEXA, total water intake (mL/d) was assessed from three 24-h dietary recalls and analyzed using the Nutrition Data System for Research (NDSR). Hydration status was objectively measured using USG via 24-h urine collection. RESULTS: Overall body fat % was 31.7 ± 7.31, total water intake was 1746 ± 762.0 mL/d, and USG score was 1.020 ± 0.011 uG. Linear regressions showed significance between total water intake and lean mass (B=12.2, p<0.05). Logistic regressions showed no significant association between body composition and USG and total water intake. CONCLUSIONS: Findings showed total water intake was significantly associated with lean mass. Future research should be conducted to explore other objective markers of hydration and with a larger sample.

Development and pilot testing of the Baby-Feed web application for healthcare professionals and parents to improve infant diets.

BACKGROUND: Diet is key in preventing rapid infant weight gain but adherence to infant dietary recommendations is difficult to follow and low in adherence. OBJECTIVE: Develop and pilot test the "Baby-Feed" web application for parents and healthcare professionals to easily evaluate infant diets and provide immediate feedback to promote adherence to current infant dietary recommendations. METHODS: Baby-Feed was developed following the ADDIE (analysis, design, development, implementation, and evaluation) model. It was pilot tested among two clinicians and 25 parents of infants aged 4 to 12 months that had a scheduled well-child visit at a community health center in Miami. After 2 weeks of using Baby-Feed, parents completed a feasibility, acceptability, satisfaction, and usability questionnaire. Parents and clinicians were also asked to suggest improvements. Descriptive analysis included frequency and median (25th, 75th percentiles). One-sample binomial tests was used to evaluate if feasible, acceptable, satisfactory, and usable. RESULTS: Twenty-three parents completed the evaluation (all were mothers), 31.0 (26.0, 33.0) years-old, 96% Hispanic, 83% had ≥ high school education, with 1.5 (1.0, 2.0) children. Infants' age was 6.1 (4.0, 9.0) months and 57% were boys. Binomial tests indicated that most parents (greater than87%) agreed that Baby-Feed was easy to use, learn, quick, would use it again, rated it as 4/5 stars. They used it greater than 1 times per week (p < 0.001). Parents suggested improving the visuals (more icons, colors, and pictures) and images of portion sizes, highlighting missing fields, being able to view/open it on their phones, and adding recipes and more information. The two clinicians (a pediatrician and a physician assistant) suggested to be open-access and to add more infant nutrition information. CONCLUSION: Baby-Feed was feasible, usable, satisfactory, and acceptable. It could be used as a tool to easily evaluate infant diets in the healthcare setting to provide immediate feedback.

The association between hydration status and total fluid intake in healthy children and adolescents.

BACKGROUND: Children 10-20 years old in the US have suboptimal hydration status. Hydration is best assessed using an objective marker, such as urine specific gravity (USG) from a 24-h urine collection. There are limited studies associating hydration from an objective marker with intake assessed from 24-h recalls in children. The objective of the study was to evaluate which foods or beverages are significantly associated with an objective marker of hydration (USG) in a sample of children and adolescents. METHODS: Intake was assessed from three 24-h dietary recalls and analyzed using the Nutrition Data System for Research (NDSR). Hydration status was objectively measured using USG via 24-h urine collection. Associations were assessed with logistic regressions. RESULTS: A total of 68 children and adolescents were recruited (50% females). Average overall USG score was 1.020 ± 0.011 uG with 39.7% categorized as dehydrated. After adjusting for age and sex, fruit juice (1.009, 95% CI: 1.001, 1.018) and all beverages (1.001, 95% CI: 1.000, 1.002) were significantly associated with higher odds of being euhydrated. CONCLUSIONS: The main predictors of hydration were fruit juice and all beverages intake. Future research should be conducted to explore differences in dietary patterns in a larger, more generalizable sample. IMPACT: Findings showed that the main predictors of hydration were water and fruit juice intake in children and water intake in adolescents in southern Florida. This is the first study to examine which type of beverages and foods are associated with USG, an objective marker of hydration status, in US children and adolescents. Provides further insight into the use of objective markers to assess hydration status, while providing data to assist epidemiological studies that may have limited resources to examine beverages and foods that contribute to hydration.

[Use of platelet concentrate in bone regeneration through exodontics. Narrative review]. / Uso de concentrados plaquetarios en la regeneración ósea por exodoncia. Revisión narrativa.

Introduction: The post-exodontic alveolar atrophy requires quality bone regeneration techniques, and therefore, it is necessary to apply platelet concentrates, which are bioactive agents in the process of preserving the alveolar bone. The use of platelet concentrates proved to be an excellent osteoinducer since it leads to three important effects for maintaining bone structure. Objective: To analyze the use of platelet concentrates in post-exodontic bone regeneration. Materials and methods: A descriptive, explanatory study. A narrative review in which data was collected from 26 scientific articles published in scientific databases such as PubMed, Redalyc, ScienceDirect, and Ovid between 2012 and 2022. Conclusions: Platelet concentrates are physiological materials that speed up the healing time of post-extraction wounds. They are autologous since they are taken from the patient him/herself, reducing the risk of postoperative reactions, and the transmission of diseases by parenteral route. They relieve both inflammation and edema as well as post-surgery symptoms that appear after a dental extraction. They also help to preserve the alveolar ridge, avoiding long-term atrophy.

Osteopenia en una adolescente blanca hispana: reporte de caso / Osteopenia in a white, hispanic, adolescent female: a case report

Introducción. Un estilo de vida poco saludable (malos hábitos alimentarios y sedentarismo), deficiencia de vitamina D, y la ingesta inadecuada de calcio, pueden contribuir a desarrollar osteopenia grave en la infancia, condicionando el riesgo futuro a sufrir fracturas y osteoporosis. Materiales y métodos. Presentamos un caso de osteopenia en una niña blanca, hispana y premenárquica de 13 años quien completó la visita basal del estudio de MetA-Bone. Evaluamos el contenido de masa ósea, la densidad de masa ósea corporal total y de la columna y la composición corporal mediante densitometría ósea (DXA). Abarcamos el historial de salud, antecedentes familiares, desarrollo puberal, actividad física, sueño, ingesta de nutrientes, antropometría, biomarcadores óseos y metabólicos. Resultados. La niña tiene antecedentes familiares de osteoporosis y no reporta fracturas previas. Muestra una actividad moderada al aire libre <1 hora/día 3 veces/semana con 8 horas/día de sueño. El consumo de productos lácteos y vegetales fue <1 ración/día. Presenta deficiencia de vitamina D (25(OH)D: 9 ng/mL) e hiperfosfatemia (5,2 mg/dL). El Z-score del DXA fue -2,1 DE (indicativo de osteopenia por edad y sexo). La niña fue referida a un pediatra, quien confirmó los hallazgos e indicó un suplemento diario con 2000 UI de vitamina D y 1000 mg de calcio. Conclusiones. El aislamiento durante la pandemia de COVID pudo haber contribuido a la gravedad de los hallazgos. Por lo tanto, recomendamos realizar pruebas de detección de vitamina D, calcio y hábitos de vida a los niños que experimentaron crecimiento acelerado durante y después de la pandemia(AU)

Introduction. Poor lifestyle habits, vitamin D deficiency, and inadequate calcium intake, particularly during the COVID-19 pandemic, may contribute to severe osteopenia in childhood, increasing future fractures and osteoporosis risk. Materials and methodology. We here present a case of osteopenia in a 13-year-old white, Hispanic, premenarchal girl who completed the baseline visit of the MetA-Bone Trial during the COVID-19 pandemic. Using a dual-energy X-ray absorptiometry, we assessed bone mass content (BMC), total body and spine bone mass density (BMD), and body composition. We cover the girl's health history and family history, pubertal development, intensity, duration, and frequency of physical activity and sleep, and nutrient intake (calcium and vitamin D), as well as anthropometric parameters, and bone and metabolic biomarkers. Results. The girl has a family history of osteoporosis (maternal grandfather) but no previous fractures; moderate outdoor activity was <1 hour/day 3 times/week with 8 hours/day of sleep. Consumption of dairy products and vegetables was <1 serving/day. Lab blood tests confirmed vitamin D deficiency (serum 25(OH) D: 9 ng/ml) and hyperphosphatemia (5.2 mg/dL); other tests were normal. DXA scan Z-score was -2.1 SD (indicative of osteopenia by age and sex). The girl was referred to a pediatrician, who confirmed the results, and prescribed a daily supplement with 2000 IU of vitamin D and 1000 mg of calcium. Conclusions. Seclusion during the COVID pandemic may have contributed to the severity of the findings. Therefore, we recommend screening children undergoing growth spurts for vitamin D, calcium, and poor lifestyle habits during and after the pandemic(AU)

Factors That "Nudge People towards the Healthier" Snacks-A Qualitative Study with Student, Faculty, and Staff Leaders and Decision Makers.

(1) College campuses pose numerous public health challenges for students, faculty and staff. The healthfulness of the snacks available on campuses is lacking, and there is a desire for change among the students and staff. The objective of this study is to understand the perspectives of the students, staff, and decision makers regarding the college campus food environment and the perceived facilitators and barriers to improving it. (2) In-depth interviews were conducted (n = 15) with decision makers in food, policy development, wellness, and nutrition at a large Hispanic-Serving University in South Florida. (3) The key stakeholders shared that educational campaigns, student buy-in, raising awareness around obesity and chronic disease, and the university's position within the community would all help to facilitate improvements to the snack food environment. However, the participants noted that the complex nature of what is considered to be healthy and what divergent consumers want are significant barriers to improving the snack food environment along with concerns over lost revenue and the corporate structure. (4) These results inform potential focal points for multi-level interventions and inform policy discussions focused on improving the snack food environment at minority-serving universities. Taking strategic actions to improve the snack food environment may aid the students and staff of the university to enhance their diet quality.

Effect of a Short Messaging Service (SMS) intervention delivered to caregivers on energy, nutrients, and food groups intake in infant participants of the WIC program.

Objectives: To test the effect of a weekly test message (SMS) intervention for improving feeding practices on infant intake of energy, nutrients, and specific food groups. Methods: This study was a multi-site, randomized clinical trial, in 202 caregivers of healthy term infants participating in either the Puerto Rico or Hawaii WIC program. Participants were randomized to receive weekly SMS about either infant's general health issues (control) or SMS for improving feeding practices (intervention) to complement WIC messages for 4 months. Anthropometrics and demographics were assessed at baseline. A validated infant food frequency questionnaire was assessed at the four-month visit to assess intake of general food groups. Data was summarized as median (25th and 75th percentiles) or percentage and differences between study arms was compared using Mann Whitney or chi-square. Results: A total of 163 participants completed the study (n = 84 control and n = 79 intervention). Baseline characteristics were similar between both groups. At 4-6 months of age, compared to the control group, the intervention group had a significantly higher intake of total grains (0.28 oz; 0.00, 0.60; P = 0.033), protein (13.5 g, 10.5, 18.3; P = 0.022), calcium (472 mg; 418, 667; P = 0.012), and zinc (4.39 mg; 2.61, 6.51; P = 0.028). No differences were seen in the other food groups, including breastmilk. Conclusions for practice: Feeding SMS to complement WIC messages led to higher intakes of some key nutrients but did not have an overall improvement in the intake of food groups. Messaging also did not delay the introduction of complimentary foods or improve breastfeeding rates. Future studies should evaluate the use of more intensive SMS interventions for continued care between WIC visits.

Skin optical properties in the obese and their relation to body mass index: a review.

SIGNIFICANCE: Obesity is a worldwide epidemic contributing directly to several cardiovascular risk factors including hypertension and type 2 diabetes. Wearable devices are becoming better at quantifying biomarkers relevant for the management of health and fitness. Unfortunately, both anecdotal evidence and recent studies indicate that some wearables have higher levels of error when utilized by populations with darker skin tones and high body mass index (BMI). There is an urgent need for a better evaluation of the limits of wearable health technologies when used by obese individuals. AIMS: (1) To review the current know-how on changes due to obesity in the skin epidermis, dermis, and subcutis that could affect the skin optical properties; (2) for the green wavelength range, to evaluate the difference in absorption and scattering coefficients from the abdominal skin between individuals with and without elevated BMI. The changes include alterations in layer thickness and cell size, as well as significant differences in chromophores and scatterer content, e.g., water, hemoglobin, collagen, and lipids. APPROACH: We have summarized literature pertaining to changes in skin and its components in obesity and report the results of our search using articles published between years 1971 and 2020. A linear model was used to demonstrate the absorption and reduced scattering coefficient of the abdominal skin of individuals with and without elevated BMI in the green wavelength range (530 to 550 nm) that is typically found in most wearables. RESULTS: The general trends indicate a decrease in absorption for both dermis and subcutis and an increase in reduced scattering for both epidermis and dermis. At 544-nm wavelength, a typical wavelength used for photoplethysmography (PPG), the absorption coefficient's relative percentage difference between high and low BMI skin, was 49% in the subcutis, 19% in the dermis, and negligible in the epidermis, whereas the reduced scattering coefficient relative difference was 21%, 29%, and 165% respectively. CONCLUSIONS: These findings suggest that there could be significant errors in the output of optical devices used for monitoring health and fitness if changes due to obesity are not accounted for in their design.

Interventions to improve calcium intake through foods in populations with low intake.

Calcium intake remains inadequate in many low- and middle-income countries, especially in Africa and South Asia, where average intakes can be below 400 mg/day. Given the vital role of calcium in bone health, metabolism, and cell signaling, countries with low calcium intake may want to consider food-based approaches to improve calcium consumption and bioavailability within their population. This is especially true for those with low calcium intake who would benefit the most, including pregnant women (by reducing the risk of preeclampsia) and children (by reducing calcium-deficiency rickets). Specifically, some animal-source foods that are naturally high in bioavailable calcium and plant foods that can contribute to calcium intake could be promoted either through policies or educational materials. Some food processing techniques can improve the calcium content in food or increase calcium bioavailability. Staple-food fortification with calcium can also be a cost-effective method to increase intake with minimal behavior change required. Lastly, biofortification is currently being investigated to improve calcium content, either through genetic screening and breeding of high-calcium varieties or through the application of calcium-rich fertilizers. These mechanisms can be used alone or in combination based on the local context to improve calcium intake within a population.

Calcium supplementation for the prevention of hypertensive disorders of pregnancy: current evidence and programmatic considerations.

Most low- and middle-income countries present suboptimal intakes of calcium during pregnancy and high rates of mortality due to maternal hypertensive disorders. Calcium supplementation during pregnancy is known to reduce the risk of these disorders and associated complications, including preeclampsia, maternal morbidity, and preterm birth, and is, therefore, a recommended intervention for pregnant women in populations with low dietary calcium intake (e.g., where ≥25% of individuals in the population have intakes less than 800 mg calcium/day). However, this intervention is not widely implemented in part due to cost and logistical issues related to the large dose and burdensome dosing schedule (three to four 500-mg doses/day). WHO recommends 1.5-2 g/day but limited evidence suggests that less than 1 g/day may be sufficient and ongoing trials with low-dose calcium supplementation (500 mg/day) may point a path toward simplifying supplementation regimens. Calcium carbonate is likely to be the most cost-effective choice, and it is not necessary to counsel women to take calcium supplements separately from iron-containing supplements. In populations at highest risk for preeclampsia, a combination of calcium supplementation and food-based approaches, such as food fortification with calcium, may be required to improve calcium intakes before pregnancy and in early gestation.