مقایسهٔ روش‌ها

	Nutrition Environment Measures Survey	Nutrient Profiling Model
حوزه	Food Agriculture Studies	Food Agriculture Studies
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	2007	2005
پدیدآور	Karen Glanz, James F. Sallis, Brian E. Saelens & Lawrence D. Frank	Mike Rayner, Peter Scarborough & Tim Lobstein (UK FSA/Ofcom model); Public Health Nutrition framework
نوع	Observational audit pipeline for the consumer nutrition environment	Scoring pipeline classifying foods by nutritional composition
منبع بنیادین	Glanz, K., Sallis, J. F., Saelens, B. E., & Frank, L. D. (2007). Nutrition Environment Measures Survey in Stores (NEMS-S): Development and Evaluation. American Journal of Preventive Medicine, 32(4), 282-289.	Scarborough, P., Rayner, M., & Stockley, L. (2007). Developing nutrient profile models: a systematic approach. Public Health Nutrition, 10(4), 330-336.
نام‌های دیگر	NEMS, NEMS-S, NEMS-R, Nutrition Environment Measurement Survey	Nutrient Profiling, UK Ofcom/FSA Nutrient Profile Model, WXYfm Model, Nutrient Profile Scoring
مرتبط	4	4
خلاصه	The Nutrition Environment Measures Survey (NEMS) is a family of structured observation instruments for assessing the consumer nutrition environment — the in-store and in-restaurant conditions that shape what people can actually buy and eat. Developed by Karen Glanz, James Sallis, Brian Saelens and Lawrence Frank and published in 2007, NEMS-S audits retail food stores and NEMS-R audits restaurants, each scoring the availability, price and quality of healthier options relative to standard ones. Trained raters apply a fixed protocol so that two independent observers reach the same verdict, and the resulting scores let researchers compare neighbourhoods, link environments to diet and obesity, and evaluate interventions. NEMS is widely regarded as a foundational, validated tool for measuring the food environment and has been adapted across diverse settings since its release.	Nutrient profiling is the science of categorising foods according to their nutritional composition for reasons related to preventing disease and promoting health. A nutrient profiling model operationalises this idea as a transparent scoring algorithm: each food is awarded points for components considered detrimental in excess (energy, saturated fat, sugars, sodium) and points for beneficial components (fruit, vegetable and nut content, fibre, protein), and the net score is thresholded to classify the food as 'healthier' or 'less healthy'. The best-known example is the UK Food Standards Agency / Ofcom model (the WXYfm model developed by Rayner, Scarborough and colleagues), adopted in 2007 to restrict television advertising of less-healthy foods to children and later adapted by the WHO and as the underlying engine of front-of-pack schemes. Scarborough, Rayner and Stockley set out the systematic, transparent development process that distinguishes a defensible model from an ad hoc one.