Measurement of Food Preferences


Book Description

This book provides comprehensive coverage of the numerous methods used to characterise food preference. It brings together, for the first time, the broad range of methodologies that are brought to bear on food choice and preference. Preference is not measured in a sensory laboratory using a trained panel - it is measured using consumers by means of product tests in laboratories, central locations, in canteens and at home, by questionnaires and in focus groups. Similarly, food preference is not a direct function of sensory preference - it is determined by a wide range of factors and influences, some competing against each other, some reinforcing each other. We have aimed to provide a detailed introduction to the measurement of all these aspects, including institutional product development, context effects, variation in language used by consumers, collection and analysis of qualitative data by focus groups, product optimisation, relating prefer ence to sensory perception, accounting for differences in taste sensitivity between consumers, measuring how attitudes and beliefs determine food choice, measuring how food affects mood and mental performance, and how different expectations affect sensory perception. The emphasis has been to provide practical descriptions of current methods. Three of the ten first-named authors are university academics, the rest are in industry or research institutes. Much of the methodology is quite new, particularly the repertory grid coupled with Generalised Procrustes Analysis, Individualised Difference Testing, Food and Mood Testing, and the Sensory Expectation Models.




Improving America's Diet and Health


Book Description

Written and organized to be accessible to a wide range of readers, Improving America's Diet and Health explores how Americans can be persuaded to adopt healthier eating habits. Moving well beyond the "pamphlet and public service announcement" approach to dietary change, this volume investigates current eating patterns in this country, consumers' beliefs and attitudes about food and nutrition, the theory and practice of promoting healthy behaviors, and needs for further research. The core of the volume consists of strategies and actions targeted to sectors of societyâ€"government, the private sector, the health professions, the education communityâ€"that have special responsibilities for encouraging and enabling consumers to eat better. These recommendations form the basis for three principal strategies necessary to further the implementation of dietary recommendations in the United States.




Food Literacy


Book Description

Globally, the food system and the relationship of the individual to that system, continues to change and grow in complexity. Eating is an everyday event that is part of everyone’s lives. There are many commentaries on the nature of these changes to what, where and how we eat and their socio-cultural, environmental, educational, economic and health consequences. Among this discussion, the term "food literacy" has emerged to acknowledge the broad role food and eating play in our lives and the empowerment that comes from meeting food needs well. In this book, contributors from Australia, China, United Kingdom and North America provide a review of international research on food literacy and how this can be applied in schools, health care settings and public education and communication at the individual, group and population level. These varying perspectives will give the reader an introduction to this emerging concept. The book gathers current insights and provides a platform for discussion to further understanding and application in this field. It stimulates the reader to conceptualise what food literacy means to their practice and to critically review its potential contribution to a range of outcomes.




Understanding and Measuring the Shelf-Life of Food


Book Description

The shelf-life of a product is critical in determining both its quality and profitability. This important collection reviews the key factors in determining shelf-life and how it can be measured. Part one examines the factors affecting shelf-life and spoilage, including individual chapters on the major types of food spoilage, the role of moisture and temperature, spoilage yeasts, the Maillard reaction and the factors underlying lipid oxidation. Part two addresses the best ways of measuring the shelf-life of foods, with chapters on modelling food spoilage, measuring and modelling glass transition, detecting spoilage yeasts, measuring lipid oxidation, the design and validation of shelf-life tests and the use of accelerated shelf-life tests. Understanding and measuring the shelf-life of food is an important reference for all those concerned with extending the shelf-life of food. Reviews the key factors in determining shelf-life and how they can be measured Examines the importance of the shelf-life of a product in determining its quality and profitability Brings together the leading international experts in the field




Sustainable healthy diets


Book Description

Considering the detrimental environmental impact of current food systems, and the concerns raised about their sustainability, there is an urgent need to promote diets that are healthy and have low environmental impacts. These diets also need to be socio-culturally acceptable and economically accessible for all. Acknowledging the existence of diverging views on the concepts of sustainable diets and healthy diets, countries have requested guidance from the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO) on what constitutes sustainable healthy diets. These guiding principles take a holistic approach to diets; they consider international nutrition recommendations; the environmental cost of food production and consumption; and the adaptability to local social, cultural and economic contexts. This publication aims to support the efforts of countries as they work to transform food systems to deliver on sustainable healthy diets, contributing to the achievement of the SDGs at country level, especially Goals 1 (No Poverty), 2 (Zero Hunger), 3 (Good Health and Well-Being), 4 (Quality Education), 5 (Gender Equality) and 12 (Responsible Consumption and Production) and 13 (Climate Action).




Social Influences on Eating


Book Description

This book examines how the social environment affects food choices and intake, and documents the extent to which people are unaware of the significant impact of social factors on their eating. The authors take a unique approach to studying eating behaviors in ordinary circumstances, presenting a theory of normal eating that highlights social influences independent of physiological and taste factors. Among the topics discussed: Modeling of food intake and food choice Consumption stereotypes and impression management Research design, methodology, and ethics of studying eating behaviors What happens when we overeat? Effects of social eating Social Influences on Eating is a useful reference for psychologists and researchers studying food and nutritional psychology, challenging commonly held assumptions about the dynamics of food choice and intake in order to promote a better understanding of the power of social influence on all forms of behavior.




Determinants of Food Consumption Choices


Book Description

In this paper, we use economics experiment laboratory intruments to measure time, risk and ambiguity preferences, which we correlate with food choice factors (items that influence food choice) and actual food consumption measures. We find that present bias, and to a lesser extent risk preferences, are singificantly correlated with the food choice factors of health, natural content, and weight control. We find these correlations to be less consistent with actual reported food chocies. This finding indicates a discrepancy between what individuals ideally would like to eat and what they actually consume. This finding suggests scope for intervention to bring the two into alignment.







Food Insecurity and Hunger in the United States


Book Description

The United States is viewed by the world as a country with plenty of food, yet not all households in America are food secure, meaning access at all times to enough food for an active, healthy life. A proportion of the population experiences food insecurity at some time in a given year because of food deprivation and lack of access to food due to economic resource constraints. Still, food insecurity in the United States is not of the same intensity as in some developing countries. Since 1995 the U.S. Department of Agriculture (USDA) has annually published statistics on the extent of food insecurity and food insecurity with hunger in U.S. households. These estimates are based on a survey measure developed by the U.S. Food Security Measurement Project, an ongoing collaboration among federal agencies, academic researchers, and private organizations. USDA requested the Committee on National Statistics of the National Academies to convene a panel of experts to undertake a two-year study in two phases to review at this 10-year mark the concepts and methodology for measuring food insecurity and hunger and the uses of the measure. In Phase 2 of the study the panel was to consider in more depth the issues raised in Phase 1 relating to the concepts and methods used to measure food security and make recommendations as appropriate. The Committee on National Statistics appointed a panel of 10 experts to examine the above issues. In order to provide timely guidance to USDA, the panel issued an interim Phase 1 report, Measuring Food Insecurity and Hunger: Phase 1 Report. That report presented the panel's preliminary assessments of the food security concepts and definitions; the appropriateness of identifying hunger as a severe range of food insecurity in such a survey-based measurement method; questions for measuring these concepts; and the appropriateness of a household survey for regularly monitoring food security in the U.S. population. It provided interim guidance for the continued production of the food security estimates. This final report primarily focuses on the Phase 2 charge. The major findings and conclusions based on the panel's review and deliberations are summarized.