scholarly journals Serving size guidance for consumers: is it effective?

2012 ◽  
Vol 71 (4) ◽  
pp. 610-621 ◽  
Author(s):  
G. P. Faulkner ◽  
L. K. Pourshahidi ◽  
J. M. W. Wallace ◽  
M. A. Kerr ◽  
T. A. McCrorie ◽  
...  

Larger portion sizes (PS) may be inciting over-eating and contributing to obesity rates. Currently, there is a paucity of data on the effectiveness of serving size (SS) guidance. The aims of the present review are to evaluate SS guidance; the understanding, usability and acceptability of such guidance, its impact on consumers and potential barriers to its uptake. A sample of worldwide SS guidance schemes (n 87) were identified using targeted and untargeted searches, overall these were found to communicate various inconsistent and often conflicting messages about PS selection. The available data suggest that consumers have difficulty in understanding terms such as ‘portion size’ and ‘serving size’, as these tend to be used interchangeably. In addition, discrepancies between recommended SS and those present on food labels add to the confusion. Consumers generally understand and visualise SS best when expressed in terms of household measures rather than actual weights. Only a limited number of studies have examined the direct impact of SS guidance on consumer behaviour with equivocal results. Although consumers recognise that guidance on selecting SS would be helpful, they are often unwilling to act on such guidance. The challenge of achieving consumer adherence to SS guidance is formidable due to several barriers including chronic exposure to larger PS, distorted consumption norms and perceptions, the habit of ‘cleaning one's plate’ and language barriers for ethnic minorities. In conclusion, the impact of SS guidance on consumers merits further investigation to ensure that future guidance resonates with consumers by being more understandable, usable and acceptable.

Nutrients ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 2189 ◽  
Author(s):  
Klazine Van der Horst ◽  
Tamara Bucher ◽  
Kerith Duncanson ◽  
Beatrice Murawski ◽  
David Labbe

The increase in packaged food and beverage portion sizes has been identified as a potential factor implicated in the rise of the prevalence of obesity. In this context, the objective of this systematic scoping review was to investigate how healthy adults perceive and interpret serving size information on food packages and how this influences product perception and consumption. Such knowledge is needed to improve food labelling understanding and guide consumers toward healthier portion size choices. A search of seven databases (2010 to April 2019) provided the records for title and abstract screening, with relevant articles assessed for eligibility in the full-text. Fourteen articles met the inclusion criteria, with relevant data extracted by one reviewer and checked for consistency by a second reviewer. Twelve studies were conducted in North America, where the government regulates serving size information. Several studies reported a poor understanding of serving size labelling. Indeed, consumers interpreted the labelled serving size as a recommended serving for dietary guidelines for healthy eating rather than a typical consumption unit, which is set by the manufacturer or regulated in some countries such as in the U.S. and Canada. Not all studies assessed consumption; however, larger labelled serving sizes resulted in larger self-selected portion sizes in three studies. However, another study performed on confectionary reported the opposite effect, with larger labelled serving sizes leading to reduced consumption. The limited number of included studies showed that labelled serving size affects portion size selection and consumption, and that any labelled serving size format changes may result in increased portion size selection, energy intake and thus contribute to the rise of the prevalence of overweight and obesity. Research to test cross-continentally labelled serving size format changes within experimental and natural settings (e.g., at home) are needed. In addition, tailored, comprehensive and serving-size-specific food literacy initiatives need to be evaluated to provide recommendations for effective serving size labelling. This is required to ensure the correct understanding of nutritional content, as well as informing food choices and consumption, for both core foods and discretionary foods.


2013 ◽  
Vol 5 (1) ◽  
pp. 22-29 ◽  
Author(s):  
Dario Gregori ◽  
Simonetta Ballali ◽  
Maria Gabriella Vecchio ◽  
Luis Marcel Valenzuela Contreras ◽  
Jorge Baeza Correa ◽  
...  

Portion size of food and drink products is an important factor when providing nutrition information for food labeling purposes. The present study was conducted in order to understand more about consumer attitudes and understanding of portion size information on food and drink products. An experimental trial was performed on mothers and one of their relative. The participants were asked to prepare two meals (one meant for a child, one for an adult), with ingredients measured only with kitchen tools. Participants were stratified by portion size information in two groups, one with labels bearing the “100 gram” and one with “per portion”. Subsequently, every participant was interviewed on the basis of a questionnaire assessing nutritional and portioning knowledge. When measured the total Kcal of prepared meals after the simulation, an increase of calories was recorded in the group of subjects who prepared foods bearing the100g label, although not statistically significant(p =0.842). Portion size use seemed to be a more intuitive way to properly share nutritional information on food label, especially when considering common traditional recipes. Meals responsible appeared to be much more at ease with per portion labeling, when preparing both children's meals and adult ones.


Author(s):  
Tamara Bucher ◽  
Kerith Duncanson ◽  
Beatrice Murawski ◽  
Klazine Van der Horst ◽  
David Labbe

This scoping review investigated how consumers perceive and interpret serving size information on food packages. A search of seven databases (2010 to September 2017) was followed by title and abstract screening, with relevant articles assessed for eligibility in full-text. Fourteen studies met inclusion criteria, with relevant data extracted by one reviewer and checked for consistency by a second reviewer. Five studies reported poor understanding of nutrition facts labelling and portion size, with information to ‘benchmark’ serving size against reported as helpful in two studies. Consumer attitudes towards serving size labelling were measured in six studies and identified that serving size information was interpreted as indicative of nutrient intake regardless of portion size recommendations. Increased labelled serving sizes resulted in increased portion sizes in three studies, with three studies reporting the opposite or neutral effect for discretionary food portion sizes. The influence of labelled serving size on consumer attitudes and consumption is complex and sometimes counterintuitive. As labelled serving size can impact on consumption, any changes may result in unintended public health consequences. The effects of labelled serving size format changes should be tested carefully within experimental and ecological contexts and accompanied by tailored, comprehensive and serving size-specific food literacy initiatives.


2019 ◽  
Vol 78 (2) ◽  
pp. 91-114 ◽  
Author(s):  
Eva Almiron-Roig ◽  
Ciaran G Forde ◽  
Gareth J Hollands ◽  
M Ángeles Vargas ◽  
Jeffrey M Brunstrom

Abstract Although there is considerable evidence for the portion-size effect and its potential impact on health, much of this has not been successfully applied to help consumers reduce portion sizes. The objective of this review is to provide an update on the strength of evidence supporting strategies with potential to reduce portion sizes across individuals and eating contexts. Three levels of action are considered: food-level strategies (targeting commercial snack and meal portion sizes, packaging, food labels, tableware, and food sensory properties), individual-level strategies (targeting eating rate and bite size, portion norms, plate-cleaning tendencies, and cognitive processes), and population approaches (targeting the physical, social, and economic environment and health policy). Food- and individual-level strategies are associated with small to moderate effects; however, in isolation, none seem to have sufficient impact on food intake to reverse the portion-size effect and its consequences. Wider changes to the portion-size environment will be necessary to support individual- and food-level strategies leading to portion control.


2015 ◽  
Vol 74 (2) ◽  
pp. 158-163 ◽  
Author(s):  
Maeve A. Kerr ◽  
Mary T. McCann ◽  
M. Barbara E. Livingstone

Extensive research into the impact of nutrition labelling across Europe has shown that many consumers can effectively use a nutrition label to rank a food for healthiness. The present paper considers observational and laboratory evidence which has examined the impact of nutrition labelling (on food packaging and at point of purchase) on dietary behaviour. In addition, the potential counterproductive effects of foods bearing ‘healthy’ nutrition labels are examined. The observational evidence provides a useful insight into the key characteristics of nutrition label use. Those most likely to engage with nutrition labels are more likely to have a diet related disease and/or be on a weight loss diet and have a good overall diet quality. Experimental evidence, while limited, suggests that serving size information may be overlooked by consumers. In fact, there may be a tendency among consumers to overeat foods that are perceived to be healthier. The findings from the present paper suggest that if nutrition labelling is to be considered a strategy to facilitate consumers in managing their energy intake, it must coincide with salient, consistent and simple serving size information on the front of food packages and at the point of purchase. There is a clear need for more experimental research using robust methodologies, to examine the impact of nutrition information on dietary intake. In the meantime, there should be greater attention given to portion size within national dietary guidance.


2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Holly Rippin ◽  
Jayne Hutchinson ◽  
Jo Jewell ◽  
Joao Breda ◽  
Janet Cade

AbstractObesity is a major health problem facing the European population; over two thirds (67%) of UK adult men and 58% women are overweight or obese (1). The positive association between on-pack serving-size and food intake is known as the ‘portion size effect’. However, although direct links with obesity remain unproven, evidence suggests that limiting consumed portion size contributes to reduced energy intake and therefore reduced weight gain (2). UK portion size guidance is outdated and evidence suggests that on-pack serving-sizes have increased in some energy-dense foods (3). This study explores consumed portion sizes and on-pack serving-sizes in popular energy, fat and sugar-dense foods.The UK National Diet & Nutrition Survey 2008–2014 (n = 2377) dataset was used to identify commonly consumed energy, fat and sugar-dense foods. Data was analysed for adults aged 19–64y (excluding under-reporters) for consumed portion sizes, and a commercial product database of major UK retailer and manufacturer data provided serving-sizes. Commonly consumed energy, fat and sugar-dense food groups were split into 45 product-based subgroups. Means of consumed portion size and on-pack serving-size were calculated and compared and nutrition per 100 g and per serve was explored.Just 57% products had serving-size details, whereas 97% had pack-size information; Chocolate had the least products with serving-size information (35%). Lack of on-pack serving-size guidance is therefore a widespread issue, particularly in some energy-dense snack foods. Serving-size ranges were wide and varied across food groups. Consumed portion sizes were significantly higher than on-pack serving-size in all main food groups and most subgroups. The greatest difference between consumed portion size and on-pack serving-size was Crisps (44%), and within this, ‘popcorn’ (151%). There is a real need for policies aimed at setting product pack and serving-sizes that help individuals consume smaller portions. However, further consideration is needed on how consumers understand on-pack serving-size messaging, front-of-pack labelling and pack size.Serving-size was unavailable for many products. However, where available, consumed portion sizes were higher than on-pack serving-size in all main food groups and most subgroups. These results could inform updated portion size guidance of energy-dense foods. Further work is needed to clarify whether smaller serving and pack sizes would lead to lower total consumption and energy/nutrient intake.


Nutrients ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1978
Author(s):  
M. Angeles Vargas-Alvarez ◽  
Santiago Navas-Carretero ◽  
Luigi Palla ◽  
J. Alfredo Martínez ◽  
Eva Almiron-Roig

Portion control utensils and reduced size tableware amongst other tools, have the potential to guide portion size intake but their effectiveness remains controversial. This review evaluated the breadth and effectiveness of existing portion control tools on learning/awareness of appropriate portion sizes (PS), PS choice, and PS consumption. Additional outcomes were energy intake and weight loss. Published records between 2006–2020 (n = 1241) were identified from PubMed and WoS, and 36 publications comparing the impact of portion control tools on awareness (n = 7 studies), selection/choice (n = 14), intake plus related measures (n = 21) and weight status (n = 9) were analyzed. Non-tableware tools included cooking utensils, educational aids and computerized applications. Tableware included mostly reduced-size and portion control/calibrated crockery/cutlery. Overall, 55% of studies reported a significant impact of using a tool (typically smaller bowl, fork or glass; or calibrated plate). A meta-analysis of 28 articles confirmed an overall effect of tool on food intake (d = –0.22; 95%CI: –0.38, –0.06; 21 comparisons), mostly driven by combinations of reduced-size bowls and spoons decreasing serving sizes (d = –0.48; 95%CI: –0.72, –0.24; 8 comparisons) and consumed amounts/energy (d = –0.22; 95%CI: –0.39, –0.05, 9 comparisons), but not by reduced-size plates (d = –0.03; 95%CI: –0.12, 0.06, 7 comparisons). Portion control tools marginally induced weight loss (d = –0.20; 95%CI: –0.37, –0.03; 9 comparisons), especially driven by calibrated tableware. No impact was detected on PS awareness; however, few studies quantified this outcome. Specific portion control tools may be helpful as potentially effective instruments for inclusion as part of weight loss interventions. Reduced size plates per se may not be as effective as previously suggested.


2016 ◽  
Vol 116 (11) ◽  
pp. 1974-1983 ◽  
Author(s):  
Eva Almiron-Roig ◽  
Angélica Domínguez ◽  
David Vaughan ◽  
Ivonne Solis-Trapala ◽  
Susan A. Jebb

AbstractExposure to large portion sizes is a risk factor for obesity. Specifically designed tableware may modulate how much is eaten and help with portion control. We examined the experience of using a guided crockery set (CS) and a calibrated serving spoon set (SS) by individuals trying to manage their weight. Twenty-nine obese adults who had completed 7–12 weeks of a community weight-loss programme were invited to use both tools for 2 weeks each, in a crossover design, with minimal health professional contact. A paper-based questionnaire was used to collect data on acceptance, perceived changes in portion size, frequency, and type of meal when the tool was used. Scores describing acceptance, ease of use and perceived effectiveness were derived from five-point Likert scales from which binary indicators (high/low) were analysed using logistic regression. Mean acceptance, ease of use and perceived effectiveness were moderate to high (3·7–4·4 points). Tool type did not have an impact on indicators of acceptance, ease of use and perceived effectiveness (P>0·32 for all comparisons); 55 % of participants used the CS on most days v. 21 % for the SS. The CS was used for all meals, whereas the SS was mostly used for evening meals. Self-selected portion sizes increased for vegetables and decreased for chips and potatoes with both tools. Participants rated both tools as equally acceptable, easy to use and with similar perceived effectiveness. Formal trials to evaluate the impact of such tools on weight control are warranted.


2020 ◽  
Vol 12 (21) ◽  
pp. 9090
Author(s):  
Jungeun Lee ◽  
Hye-Young Joo

The purpose of this study is to determine whether the support of top management significantly improves the level of environmental collaboration with participating companies upstream and downstream of the green supply chain and the impact on environmental performance. The results of the empirical analysis of 301 companies that are establishing a green supply chain are as follows. First, top management’s support positively affects the level of collaboration with suppliers and customers in the green supply chain. Secondly, support from top management has a direct impact on the company’s environmental performance. Thirdly, the environmental collaboration of participating companies partially plays a mediation role between the support of top management and the environmental performance. This study has significance in that it analyzes the theoretical mechanism of top management’s support for environmental collaboration with participating companies, leading to environmental performance, and draws implications.


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