- Obesity, Physical Activity, Diet
- Consumer Attitudes and Food Labeling
- Nutritional Studies and Diet
- Global Public Health Policies and Epidemiology
- Behavioral Health and Interventions
- Eating Disorders and Behaviors
- Community Health and Development
- Health Policy Implementation Science
- Food Security and Health in Diverse Populations
- Agriculture Sustainability and Environmental Impact
- Consumer Retail Behavior Studies
- Consumer Market Behavior and Pricing
- Physical Activity and Health
- Climate Change and Health Impacts
- Child Nutrition and Water Access
- Digital Marketing and Social Media
- Public Health Policies and Education
- Economics of Agriculture and Food Markets
- Mobile Health and mHealth Applications
- Obesity and Health Practices
- Global Health Care Issues
- Environmental Education and Sustainability
- Economic and Environmental Valuation
- Financial Literacy, Pension, Retirement Analysis
- Complex Systems and Decision Making
Public Health Service of Amsterdam
2019-2025
Amsterdam University Medical Centers
2019-2025
University of Amsterdam
2018-2025
Vrije Universiteit Amsterdam
2012-2025
Amsterdam UMC Location University of Amsterdam
2019-2024
GGD Amsterdam
2011-2020
University of Auckland
2013-2019
Geneeskundige en Gezondheidsdienst
2018
National Institutes of Health
2015
Amsterdam Public Health
2009-2014
According to the CONSORT statement, significance testing of baseline differences in randomized controlled trials should not be performed. In fact, this practice has been discouraged by numerous authors throughout last forty years. During that time span, reporting substantially decreased leading general medical journals. Our own experience field nutrition behavior research however, is co-authors, reviewers and even editors are still very persistent their demand for these tests. The aim paper...
This paper describes the design of LIKE programme, which aims to tackle complex problem childhood overweight and obesity in 10–14-year-old adolescents using a systems dynamics participatory approach. The programme focuses on transition period from 10-years-old teenager was implemented collaboration with Amsterdam Healthy Weight Programme (AHWP) Amsterdam-East, Netherlands. aim is develop, implement evaluate an integrated action at levels family, school, neighbourhood, health care city....
To examine the availability of packaged food products in New Zealand supermarkets by level industrial processing, nutrient profiling score (NPSC), price (energy, unit and serving costs) brand variety.Secondary analysis cross-sectional survey data on supermarket non-alcoholic beverages. Products were classified according to processing (minimally, culinary ultra-processed) their NPSC.Packaged foods available four major Auckland, Zealand.Packaged for years 2011 2013.The majority (84% 83% 2013)...
Abstract Objective To study differences in the role of price and value food choice between low-income higher-income consumers to perception about pricing strategies that are relevance during grocery shopping. Design A cross-sectional was conducted using structured, written questionnaires. Food motives as well perceptions opinion on were measured. Setting The carried out point-of-purchase settings, i.e. supermarkets, fast-food restaurants sports canteens. Subjects Adults ( n 159) visiting a...
There is increasing recognition that supermarkets are an important environment for health-promoting interventions such as fiscal food policies or front-of-pack nutrition labeling. However, due to the complexities of undertaking research in real world, well-designed randomized controlled trials on these kinds lacking. The Virtual Supermarket a 3-dimensional computerized designed enable experimental studies supermarket setting without complexity costs normally associated with research.The...
BackgroundOne possible policy response to the burden of diet-related disease is food taxes and subsidies, but net health gains these approaches are uncertain because substitution effects between foods. We estimated cost impacts various subsidies in one high-income country, New Zealand.MethodsIn this modelling study, we compared Zealand a 20% fruit vegetable subsidy, saturated fat, sugar salt (each set at level that increased total price by same magnitude decrease from subsidy), an 8%...
Abstract Background Systems thinking embraces the complexity of public health problems, including childhood overweight and obesity. It aids in understanding how factors are interrelated, it can be targeted to produce favourable changes a system. There is growing call for systems approaches research, yet limited practical guidance available on evaluate programmes within complex adaptive systems. The aim this paper present an evaluation framework that supports researchers designing evaluations...
Context-specific interventions may contribute to sustained behaviour change and improved health outcomes. We evaluated the real-world effects of supermarket nudging pricing strategies mobile physical activity coaching on diet quality, food-purchasing behaviour, walking cardiometabolic risk markers.
Abstract Objective To examine the association between energy density and costs in single food items composed diets, to explore differences cost income levels. Design A cross-sectional study using data from two Dutch cohort studies recent national prices. Food prices were retrieved market leader supermarkets. Data on dietary intake measured a computerized face-to-face interview (cohort 1) 24 h recalls 2). Setting The Netherlands. Subjects sample of 373 young adults Amsterdam Growth Health...
Lowering the price of fruit and vegetables is a promising strategy in stimulating purchase those foods. However, true effects this are not well studied it unclear how money saved spent. The aim study to examine 25% discount on fruits food purchases supermarket environment. A randomized controlled trial with two research conditions was conducted: control condition regular prices (n = 52) an experimental 63). experiment carried out using three-dimensional web-based supermarket, which software...
Cross-country differences in dietary behaviours and obesity rates have been previously reported. Consumption of energy-dense snack foods soft drinks are implicated as contributing to weight gain, however little is known about how the availability these items within supermarkets varies internationally. This study assessed variations display a sample across eight countries.Within-store audits were used evaluate compare potato chips (crisps), chocolate, confectionery drinks. Displays measured...
Economic interventions in the food environment are expected to effectively promote healthier choices. However, before introducing them on a large scale, it is important gain insight into effectiveness of economic and peoples' genuine reactions price changes. Nonetheless, because complex implementation issues, studies virtually non-existent. This especially true for experiments undertaken retail setting. We have developed research tool study effects virtual-reality setting: Virtual...
Fiscal policies may form a solution in improving dietary intake. This study aimed to examine the effectiveness of varying taxing and subsiding schemes stimulate healthier food purchases.A randomized controlled trial with three levels price reduction on healthy foods (no; 25%; 50%)×three increase unhealthy (5%; 10%; 25%) factorial design was used. 150 participants were into one nine conditions asked purchase groceries at web-based supermarket. Data collected Netherlands January-February 2010...
Many children globally do not meet government guidelines for daily fruit and vegetable intake, in New Zealand, adherence to the intake recommendation is declining. This study aimed identify systemic barriers meeting (FV) generate sustainable actions within a local community improve children's FV intake. A qualitative system dynamics method of group model building was used. The research team partnered with Healthy Families Waitākere, Ministry Health funded prevention initiative, recruit 17...
Evidence on what strategies - or combination of are most effective and equitable in promoting healthier diets is needed. This study examined the efficacy nudging pricing increasing healthy food purchases potential differential effect by socio-economic position (SEP) among Dutch adults a virtual supermarket.
Group model building (GMB) is a qualitative method aimed at engaging stakeholders to collectively consider the causes of complex problems. Tackling inequities in community nutrition one such problem, as are driven by variety interactions between individual factors, social structures, local environments and global food system. This methods paper describes GMB process that utilises three system mapping tools study with members multicultural, low-income explore declining fruit vegetable intake...
Most evidence on health-related food taxes and subsidies relies observational data effects single nutrients or foods instead of total diet. The aim this study was to measure the effect randomly assigned price variations consumer purchasing, where sets prices emulated commonly discussed tax subsidy policies, including a fruit vegetables, sweetened beverage tax, according sugar, sodium, saturated fat content.In study, adult participants (≥18 years) in New Zealand completed up five weekly shops...