Non-communicable diseases (NCD) have increased dramatically in developed and developing countries. Unhealthy diet is one of the major factors contributing to NCD development. Recent evidence has identified deterioration in aspects of dietary quality across many world regions, including low- and middle-income countries (LMIC). Most burdens of disease attributable to poor diet can be prevented or delayed as they occur prematurely. Therefore, it is important to identify and target unhealthy dietary behaviours in order to have the greatest impact. National dietary-related programmes have traditionally focused on micronutrient deficiency and food security and failed to acknowledge unhealthy dietary intakes as a risk factor that contributes to the development of NCD. Inadequate intakes of healthy foods and nutrients and excess intakes of unhealthy ones are commonly observed across the world, and efforts to reduce the double burden of micronutrient deficiency and unhealthy diets should be a particular focus for LMIC. Interventions and policies targeting whole populations are likely to be the most effective and sustainable, and should be prioritized. Population-based approaches such as health information and communication campaigns, fiscal measures such as taxes on sugar-sweetened beverages, direct restrictions and mandates, reformulation and improving the nutrient profile of food products, and standards regulating marketing to children can have significant and large impacts to improve diets and reduce the incidence of NCD. There is a need for more countries to implement population-based effective approaches to improve current diets.

Objective: Schools have been recognised as a potential setting for improving young peoples’ food and beverage choices; however, many schools fail to adhere to healthy food and beverage policy standards. The current study aimed to explore the enablers and barriers to effective implementation of and compliance with school-based food and beverage policies.Design: Systematic review and meta-synthesis. Eight electronic databases were searched for articles in June 2019. Studies were eligible for inclusion if they reported on implementation and/or compliance of school-based food and/or beverage policies with outcomes relating to enablers and/or barriers. This review had no restrictions on study design, year of publication or language. Seventy-two full-text articles were assessed for eligibility, of which twenty-eight were included in this review.Setting: Studies conducted globally that focused on schools.Participants: School-based healthy food and beverage policies.Results: Financial (cost of policy-compliant foods, decreased profit and revenue), physical (availability of policy-compliant foods, close geographical proximity to unhealthy food outlets) and social (poor knowledge, understanding, and negative stakeholders’ attitudes towards policy) factors were the most frequently reported barriers for policy implementation. Sufficient funding, effective policy communication and management, and positive stakeholders’ attitudes were the most frequently reported enablers for policy implementation.Conclusions: There is a need for better communication strategies, financial and social support prior to school-based food policy implementation. Findings of this review contribute to a thorough understanding of factors that underpin best practice recommendations for the implementation of school-based food policy, and inform those responsible for improving public health nutrition.

Background: Heart failure self-management is essential to avoid decompensation and readmissions. Mobile apps seem promising in supporting heart failure self-management, and there has been a rapid growth in publications in this area. However, to date, systematic reviews have mostly focused on remote monitoring interventions using nonapp types of mobile technologies to transmit data to health care providers, rarely focusing on supporting patient self-management of heart failure. Objective: This study aims to systematically review the evidence on the effect of heart failure self-management apps on health outcomes, patient-reported outcomes, and patient experience. Methods: Four databases (PubMed, Embase, CINAHL, and PsycINFO) were searched for studies examining interventions that comprised a mobile app targeting heart failure self-management and reported any health-related outcomes or patient-reported outcomes or perspectives published from 2008 to December 2021. The studies were independently screened. The risk of bias was appraised using Cochrane tools. We performed a narrative synthesis of the results. The protocol was registered on PROSPERO (International Prospective Register of Systematic Reviews; CRD42020158041). Results: A total of 28 articles (randomized controlled trials [RCTs]: n=10, 36%), assessing 23 apps, and a total of 1397 participants were included. The most common app features were weight monitoring (19/23, 83%), symptom monitoring (18/23, 78%), and vital sign monitoring (15/23, 65%). Only 26% (6/23) of the apps provided all guideline-defined core components of heart failure self-management programs: education, symptom monitoring, medication support, and physical activity support. RCTs were small, involving altogether 717 participants, had ≤6 months of follow-up, and outcomes were predominantly self-reported. Approximately 20% (2/10) of RCTs reported a significant improvement in their primary outcomes: heart failure knowledge (P=.002) and self-care (P=.004). One of the RCTs found a significant reduction in readmissions (P=.02), and 20% (2/10) of RCTs reported higher unplanned clinic visits. Other experimental studies also found significant improvements in knowledge, self-care, and readmissions, among others. Less than half of the studies involved patients and clinicians in the design of apps. Engagement with the intervention was poorly reported, with only 11% (3/28) of studies quantifying app engagement metrics such as frequency of use over the study duration. The most desirable app features were automated self-monitoring and feedback, personalization, communication with clinicians, and data sharing and integration. Conclusions: Mobile apps may improve heart failure self-management; however, more robust evaluation studies are needed to analyze key end points for heart failure. On the basis of the results of this review, we provide a road map for future studies in this area.

This article describes results of a systematic review of social marketing physical activity interventions targeting adults 60 years and over. Thirty-four articles covering seven social marketing interventions were identified following systematic literature review procedures. None of the identified interventions gave evidence that they addressed all six social marketing benchmark criteria; three interventions addressed five social marketing benchmark criteria and a further three interventions addressed four social marketing benchmark criteria. Four interventions reported positive behavior change, and no negative behavioral changes were reported among all seven social marketing interventions. Previous research shows that social marketing interventions employing all six benchmark criteria offer greater potential to change behaviors, yet none of the interventions in this review used all of the benchmark criteria. Audience segmentation and exchange were used by only three interventions.