Policy makers’ paradigms and evidence from consumer interpretations of dietary supplement labels

The regulation of marketplace information regarding health and nutrition is in flux. Nowhere, perhaps, is this more evident than in the dietary supplement industry. Herein, we present an experiment that examines the two major types of claims used for dietary supplements, testing the underlying assumptions made by policy makers. Our study suggests that a direct‐effects consumer decision‐making model does not apply in this context; instead, consumers process label claims through various biasing filters.     

Toward an Integrated Model of Purchase Intention of Dietary Supplements in Sexually Oriented Advertising

This study was designed to examine antecedent factors that yielded a model of purchase intention of dietary supplements in sexually oriented advertising. Results suggested that sexual cognition, gender difference, individual attitude toward advertisements, and product involvement were yielded as key predictors toward people's purchase intention of dietary supplements. However, sexually oriented advertising did not considerably increase their purchase intention. A regression analysis also loaded sexual cognition and product involvement as two key determinants in the model of purchase intention of dietary supplements. Moreover, people with a more positive level of sexual cognition significantly resulted in their higher degree of purchase intention of dietary supplements.     

The Impact of Warnings,Disclaimers, and Product Experience on Consumers’ Perceptions of Dietary Supplements

Two experiments explored the impact of disclosures (warning and disclaimer) and product experience (heavy, light, and nonusers) on consumers’ perceptions of dietary supplements. In general, the government‐mandated disclaimer did not impact consumers’ beliefs about either the efficacy or the safety of dietary supplements; for most consumers, the disclaimer is unlikely to achieve its intended results. However, when product experience was examined, analyses show that heavy product users responded differently to the disclosures than did light product users and nonusers. Results point to the importance of understanding the influence of individual differences on the interpretation of product disclosures by specific consumer segments.     

Nanotechnology for Food Applications: More Questions Than Answers

This article highlights the scientific evidence to date on a variety of nanotechnology issues important to consumers with a focus on food applications. Nanotechnology is technology at the atomic or macromolecular levels on the scale of approximately 1–100 nm. There are unlimited potential applications of nanotechnology for food, dietary supplements and food contact materials. However, there are more questions than answers about the safety risks of nanotechnology, its environmental, health and other impacts, and its costs and benefits. Benefits and costs will likely be specific to the nanomaterials used, the application and other conditions (e.g., temperature).     

Consumer Preferences Toward Product Attributes of Dietary Supplements Under Mandatory Food Traceability Systems in Korea

Korea, mandatory Food Traceability System (FTS) regulation on dietary supplements has been enforced since the end of 2014, which has allowed government to collect electronic data to trace food. The aim of this study was to determine which additional attributes of dietary food supplements are preferred by consumers and to assess the value of consumers’ willingness to pay (WTP) for these attributes. This investigation revealed that gender, age, income, and awareness were the most frequently reported drivers of purchase behavior. Gender was the most influential socioeconomic characteristic. The results of the conditional and random parameter logit model suggested that Korean consumers have the highest WTP for origin of all ingredients, followed by side-effect warnings, quality-related certifications, and date of import. It will be worthwhile to identify the value of relevant attributes once other nations establish FTS policies and improve food traceability services or regulations.     

Consumer health beliefs and food supplement use by the elderly

Seven western states in the U.S.A. were surveyed by mail and telephone to assess consumer-health beliefs and the use of food supplements (vitamins and minerals) as part of the overall western region project. A 57.9% return resulted in a sample size of 1,730 adults and 528 of these were 60 years of age and over. The sample included significantly greater numbers of regular users of vitamins and mineral supplements than non-users or occasional users. More women than men were regular users. Compared with those who never used vitamin and mineral supplements, regular users had distinct patterns of health beliefs and practices. Regularly, they relied heavily on the medical profession for general health information. They obtained supplement and diet information from diet books and periodicals and also believed that taking vitamins and minerals prevented serious illness, reduced stress, prevented colds, skin problems, heart attacks, cancer, and other health problems. While they believed their overall well-being was improved through the use of supplements, their responses did not indicate that use of supplements ensured good health or that the current food supply filled nutritional needs. Conclusions are that specific educational programmes about the value and use of food supplements need to be designed for the target audience. Furthermore, all professionals who work in the large array of food service positions should share the responsibility for providing accurate information and advertising.     

Finns and functional foods: socio‐demographics,health efforts,notions of technology and the acceptability of health‐promoting foods

Eating is increasingly characterized by concerns over health and well‐being. New types of foods designed to promote health or to reduce the risk of diseases, known as functional foods, have been entering the market since the 1990s. This article focuses on the appropriation of functional foods among Finnish consumers from the perspective of acceptability. We analyse the relationship between consumers’ views of functional foods and their socio‐demographic backgrounds, health efforts and notions of food, health and technology. The article is based on a survey of a representative sample of Finnish consumers (n = 1210). The data were collected by using computer‐assisted telephone interviews and analysed by factor analysis and analysis of variance. The factor analysis resulted in four dimensions of acceptability: (1) experiences of functional foods; (2) views on product quality and safety; (3) societal concerns over current developments; and (4) views on regulation and research. According to the results, the differences in consumer views of functional foods were to some extent linked with age and education but better explained by the differing roles of food and health in people’s lives and the acceptability of modern food technologies. Efforts to lower blood cholesterol and/or blood pressure, the use of dietary supplements, regarding healthy eating as very important and having an optimistic outlook on the use of technology in food production were all related to more optimistic views of functional foods. Finns seem to have a relatively trusting position on functional foods. Familiarity of functional foods in Finland, absence of serious food scandals, the health‐oriented Finnish culture and the generally high level of societal trust may account for this optimism.     

养生中的体育运动与营养饮食

保持身体健康需要运动与营养的结合,运动与营养既独立又相互依靠,二者缺一不可。如果只是运动而不补充营养,就会造成身体的损伤;如果只补充营养却不注意锻炼身体,将会导致身体出现畸形。对于养生来说,舒缓运动比激烈运动更加合理,科学饮食比任性饮食更加健康。     

宁夏农业学校学生膳食营养状况调查与分析

为了解宁夏农业学校学生膳食营养状况,为制订切实可行的干预措施提供科学依据,采用自制问卷调查的方式,通过24小时膳食回顾法与食物频率法相结合的调查方法,了解学生日常饮食的具体情况。根据中国居民膳食营养指南,分析学生膳食营养情况,运用BMI值评估学生的体质状况。结果显示,与中国居民平衡膳食宝塔的推荐量相比,宁夏农业学校学生的膳食结构中蔬菜、水果、肉类、奶类摄入量过少,膳食的能量不足;三餐比例中早餐能量摄入过少;三大产能营养素功能比例基本适宜;学生体质状况良好。宁夏农业学校学生的饮食行为存在很多问题,需及时给予适当的膳食行为干预,以提高学生的营养健康水平。     

Family variables,nutrient intakes and perceived health among Malawian women

This study emphasises the inter-relationships among family variables, nutrient intake and perceived health status among Malawian women. The sample consists of rural women residing in Zomba, Malawi, southern Africa. Data were collected from April to June 1993 on (1) family cohesion and adaptability, assessed by a modified version of Olson's FACES 11; (2) dietary intake using a modified food frequency questionnaire; and (3) a 24-item questionnaire on perceived health status, barriers to health and desired methods of communicating nutrition information in the village. The results indicated that Malawian rural women perceived their families as highly cohesive and adaptable. Diseases frequently identified as common in the family were not perceived as related to nutrition. Income significantly correlated with dietary adequacy. The study suggests that efforts to promote health and nutritional status should be directed at disease prevention and its ecological relationship with nutrition. Strategies for communicating nutrition information in rural Malawi are provided.     

Examination of the health‐belief model to predict the dietary quality and body mass of adults

We examined the ability of the health‐belief model to predict individuals’ dietary quality and body mass among a nationwide sample of 1319 adults in the United States. Simultaneous estimation of the structural equation model found acceptable goodness‐of‐fit to the data. Explained variance in dietary quality and body mass, however, were moderate to weak. The model included three types of nutrition knowledge: basic facts, diet–health awareness and ability to accurately self‐assess nutrient intake. None of these variables had a strong effect on dietary quality or body mass. We speculate that lifestyle characteristics, cultural habits, community infrastructure, and the politics of food production and retailing – variables found in other studies to affect dietary quality and body mass yet not available in our data – might outweigh the effects of nutrition knowledge and sociodemographic factors on estimating dietary quality and body mass. We suggest that future research and intervention programmes focus more on social, cultural and political context than on nutrition knowledge. Current collaborations among life and social scientists to design foods to improve human nutrition might also prove effective in reducing the prevalence of overweight and obesity.     

Is an Increase in Organic Consumption Accompanied by A Healthier Diet? A Comparison of Changes in Eating Habits among Danish Consumers

Several studies have shown that consumers with a high organic consumption often have dietary habits that include more fruit and vegetables but less red meat. This paper takes a novel approach by investigating whether changes in consumption of organics and improvements in dietary habits also are related. The results show that many consumers seem to improve their diet while increasing the organic consumption. Further, the study suggests that some households already have a relatively healthy diet in terms of fruit, vegetables, and meat consumption, when they start buying organic food. When organic consumption reaches a certain level, further increases in organic consumption are more likely to take place at the same time as dietary habits are improved. References to health and climate considerations seem to be the most important motivations for reducing meat consumption, while higher availability of organics is the most important reason for increasing organic consumption.     

Reduced‐fat foods: the shopper’s viewpoint

The inclusion of reduced‐fat foods in the daily diet affords consumers the potential to reduce overall dietary fat. Nevertheless, despite an increased range of these food products throughout the market, there has remained a lack of widespread consumer acceptance. The aim of the study was therefore to understand why consumers choose or reject reduced‐fat foods. Ninety consumers were interviewed by means of a qualitative approach within food retail outlets in the United Kingdom. Thematic content analysis indicated that uptake or rejection of these products is influenced by health concerns, ‘goodness of fit’ with individual dietary health strategies, the preferences of different household members, perceived sensory properties and scepticism towards these products. The results imply a need to explore and innovate ‘natural’ fat substitutes and to improve the sensory quality of reduced‐fat products. Further research is required to determine how these foods are used within the household and incorporated within the overall diet. Policy must seek to restore consumer trust in reduced‐fat food products and the food supply generally.     

Chinese dietary culture influences consumers' intention to use imported soy‐based dietary supplements: an application of the theory of planned behaviour

The over‐saturated dietary supplement (DS) market in developed countries such as the US spurs the need for foreign market expansion, and the Chinese market provides a great potential for the foreign soy‐based DS industry. This study examined Chinese consumers' intention to use imported (US‐made US‐brand) soy‐based DS based on the Theory of Planned Behavior (TPB). Two alternative models were also examined in which Chinese dietary culture variables, including soyfoods favourability and dining‐out sociability, as well as their interactions with attitudes, were integrated into the TPB model. A cross‐sectional, self‐administered survey was conducted with a sample of 215 subjects (137 females; 78 males) in Shanghai, China. The TPB variables attitude, subjective norm, perceived behaviour control and behavioural intention, as well as the Chinese dietary culture variables: soyfoods favourability and dine‐out sociability were measured. Multiple linear regressions were used to analyze the three models. The statistical results indicated that all three models were statistically significant to predict intention (Model 1: R² = 0.473, P < 0.001; Model 2: R² = 0.505, P < 0.001; Model 3: R² = 0.525, P < 0.001). The results also showed that attitude, perceived behavioural control, and dine‐out sociability were significant (positive) determinants of intention. Soyfoods favourability acted a significant (negative) moderator of the relationship between attitude and intention. Subjective norm had no significant impact on intention. In conclusion, the TPB model was useful to predict Chinese consumers' intention to use imported soy‐based DS, but not all the TPB components weighed significantly in exploring DS consumption in China. The selected Chinese dietary culture variables were much more important predictors than subjective norm. This study makes a significant contribution in the application of the TPB model and in market strategy development for imported dietary supplements in China.     

Consumer acceptance of low-fat and fat-substituted dairy products

The continued expansion of the low-fat market, coupled with extensive dietary guidelines given to consumers, has not yet appeared to have had the desired effect. Evidence suggests that the majority of U.K. consumers are still not prepared to sacrifice the taste and quality of a food for any perceived health benefits. This is particularly evident in the low-fat hard cheese market, which has not reached the same level of consumption as other diary based products. The key would appear to be in gaining an optimum balance between health and taste, yet the latter is often compromised by manufacturers who are under constant pressure to further reduce the fat levels of their products. A potential solution may be the development and inclusion of fat substitutes, as investigated in this study. Research consisted of two main elements. Firstly, lower fat cheese incorporating a fat substitute was developed and compared with other products currently on the market using sensory analysis. A questionnaire was then utilized to further assess the degree of consumer acceptance of this trend. Substitute use would appear to have potential in permitting a further reduction in fat levels, while retaining a measure of quality — an essential element if longer term dietary guidelines are to be achieved.     

Parental eating messages and dietary guideline compliance of college students

The purpose of this study was to identify parental eating messages from the point of view of 340 college students and the relationship of these messages to dietary guideline practices. Four types of parental eating messages were identified: (1) threat or guilt, (2) picky eater, (3) food as health, (4) critical weight. Five types of dietary guide practices were identified: (1) fat meals and snacks, (2) vegetable–fruit, (3) sugar‐salt convenience food, (4) fitness–protein–carbohydrate, (5) fat add‐ons. The lack of association of parental eating messages with any of the dietary guideline factors suggests that messages are not affecting the food choices of these college students. Parental messages may in fact represent the way different cultures address eating, parenting and caring.     

Independent decision making of adolescents regarding food choice

The adolescence period is the stage in the life cycle in which individuals begin to develop independent decision making related to their social environment including their dietary intake. The period is fundamental in the development of longer term eating habits that may be reflected in adulthood. This study aimed to investigate the decision‐making process of adolescents and their dietary behaviour in the achievement of a balanced diet and to determine the underlying factors that may affect these choices. To meet this aim, a three phase data collection was utilized. In phase 1, a baseline questionnaire (n = 239) measured factors affecting dietary behaviour and the barriers in the achievement of a balanced diet. Phase two employed and measured respondents’ (n = 235) independent decision making by rating nineteen menu choices which reflected all options of dietary guidelines. This was analyzed through conjoint analysis. In phase three a subsample (n = 55) from the first two phases completed a food map which determined underlying reasons for food decisions and choice behaviour. Results revealed that when adolescents are given free choice they tend to follow an unbalanced diet with some diets raising concerns for their current and future health. Fifty‐seven percent of respondents displayed serious concerns in their dietary choice of which 18% were identified as requiring immediate intervention. The most noticeable factors affecting dietary choice were the desire to eat foods high in fat and carbohydrates and low in fruit and vegetable consumption. Food‐mapping indicated prior knowledge and attitudes had no effect on the choices made but that that behaviour of parents in the preparation of meals at home and peers in the selection of snack choices had the most influence on the unbalanced diet.     

Sources of Information,Consumer Attitudes on Nutrition,and Consumption of Dairy Products

Commodity promotion programs, paid for by producers, may be a source of nutrition information for consumers. The analytical approach treats sources of nutrient and health information, consumers' attitudes, and behaviors sequentially. The National Dairy Board's promotion of the calcium-related benefits of dairy products is one case where nutritional messages, through their impact on attitudes, do effect change in dietary behavior.