Insect-based Food Research Articles

Who Would Taste It? Exploring Decision-Making Styles and Intention to Eat Insect-Based Food among Italian University Students

Background: Although insect-based foods (IBFs) have been recently proposed as a way to face climate crisis and starvation, they encounter aversion from Western countries, which express fear, disgust, and high risk. The contribution of psychology research to food choices highlights how decisions are made, not only through reasoned attitudes and goal-directed behavior, but also through more automatic associations (dual-system models). Methods: In this paper, we investigated people’s dispositions towards IBFs by combining (a) explicit attitudes (as assessed via self-report scales), (b) automatic associations (as measured via indirect measures), and (c) intention to taste, and comparing different profiles based on (d) psychological factors, including decision-making style, food neophobia, and trust in science and scientist. A pilot sample of 175 Italian university students participated in the study. Results: The analyses of the general sample highlighted rather negative attitudes. The cluster analysis identified 4 decision-making profiles: ‘the gut feeling’, ‘the suspicious’, ‘the vicarious’, and ‘the mind’. It revealed more favorable opinions in ‘the mind’ profile, characterized by a rational decision-making style and high trust in science, and very aversive reactions from ‘the suspicious’ profile, characterized by high food neophobia and low trust in science. Conclusions: The results underline the importance of psychological factors in interpreting people’s reactions to IBF and changes in dietary habits based on the decision-making process. They suggest possible strategies to promote eco-friendly diets.

Presence of Trace Elements in Edible Insects Commercialized through Online E-Commerce Platform.

This study aimed to evaluate the presence of various elements in edible insect-based food products available for human consumption. Several products were analyzed using atomic spectroscopy, and descriptive statistical analysis was conducted with IBM SPSS Statistics 27. The results revealed the presence of elements such as arsenic, cadmium, copper, magnesium, nickel, silver, lead, tungsten, uranium, mercury, platinum, aluminum, beryllium, bismuth, lithium, antimony, and thallium. Significant differences were found based on product type, insect species, and country of origin. The findings underscore the need to assess each insect species for its potential as a food source, taking into account element bioaccumulation factors. A comprehensive, global approach is essential for ensuring the food safety of edible insects as a sustainable protein source. Further research is needed to address these safety concerns.

How Do Greeks Feel about Eating Insects? A Study of Consumer Perceptions and Preferences.

Edible insects are considered among the most promising sustainable sources of protein to address the predicted deficiency of conventional food protein. Due to their nutritional and environmental benefits, there is an increasing interest in the ways insects could become part of the Western diet. Little is known about Greek consumers' attitudes toward the habit of consuming insects as food. This study provides insight into Greek consumers' preferences for insect-based food products. The data were collected through an online questionnaire (n = 1531). A two-step cluster analysis and a categorical regression were employed to classify the respondents into discernible clusters and determine the relationship between their socioeconomic characteristics and their willingness to adopt insect-based food products. Feelings of disgust and rejection were the predominant reactions to the concept of insects as food. The acceptance of novel foods derived from edible insects could be potentially enhanced by providing information regarding their positive effects, using familiar food products, and decreasing the insect's degree of visibility by employing processed forms. Finally, the categories of insect protein-enriched food products (bakery, meat, snacks) that Greek consumers are more likely to consume were revealed. Such findings may be useful for promoting strategies regarding consuming insect-based products.

Insect-Based Foods: A Preliminary Qualitative Study Exploring Factors Affecting Acceptance and New Product Development Ideas through Focus Groups

While insect-based foods could contribute towards sustainable protein consumption and production, their successful adoption relies largely on consumer acceptance. This case study aims to explore factors affecting acceptance and to identify the insect-based foods that participants would like to be developed and introduced to the market. Three focus groups incorporating optional tasting sessions of insect-based foods were conducted in Ireland, a country where these foods were unavailable at the time of the study. Findings showed that before the tasting sessions, public opinion, portion size comparisons (insects vs. meat), and witnessing entomophagy-related disturbing experiences through television were some of the factors that negatively influenced acceptance. Lack of availability in Ireland was the main factor that hindered consumption among participants willing to consume these foods. Participants’ usual food choice motives, sensory attributes, and inclusion percentages of insects in food were some factors which affected acceptance following the tasting sessions. A variety of insect-based foods was suggested for product development, which were mostly components of a main meal. The findings of this study could give an initial indication of product ideas that could be explored further for product development in regions where insect-based foods are not readily available on the market. These findings could contribute to future studies that would aim to build quantitative tools.

Trend-Driven Innovation for RTE Food Market: A Comparison Study Between Consumers from Malaysia and Indonesia

The ready-to-eat (RTE) food market is growing worldwide. Nevertheless, a limited study was found where researchers compare consumer behavioral intention toward RTE foods between countries. This study compares consumers in Malaysia and Indonesia regarding their food preferences and behavioral intentions toward RTE foods. Using a quantitative cross-sectional approach, the researchers developed an online survey and distributed the survey link to consumers aged 18 years and above from both countries via social media platforms. The dataset comprised 321 responses from Malaysia and 262 from Indonesia. Based on the analyses, findings reported some similarities and differences in consumer preferences and behavior intention between both countries. The highest percentages of Malaysian respondents were recorded for plant-based, genetically modified, gluten-free, and allergen-free foods. Interestingly, the highest percentage of Indonesian respondents reported for insect-based food than the Malaysians. More Malaysian consumers preferred ethnic foods from different cultures than Indonesians. About the same highest percentages of consumers from both countries preferred cell-cultured meat, 3D printed foods, and vegan foods. For Malaysian samples, attitude and subjective norms significantly influenced their behavior intention toward RTE foods. For Indonesian samples, subjective norms and behavioral control significantly influence consumer behavior intention toward RTE foods. Findings are relevant for food producers and marketers to explore the young consumer market and to identify new products to fulfill the market demand. This study broadens and deepens the current understanding of both countries' RTE food trends and consumer behavioral patterns. Food producers should promote RTE food products by highlighting their benefits through marketing channels.

The satiating potential of edible insect-based foods

The satiating potential of edible insect-based foods

ENTOMOPHAGY AS A POTENTIAL TOURISM PRODUCT: THE CASE OF THE MOPANI DISTRICT, LIMPOPO PROVINCE, SOUTH AFRICA

Entomophagy and entomophagy tourism have been gaining traction as a growing trend in various parts of the world. Although the concept may be relatively new in some regions, entomophagy has existed for many years and offers various benefits for farmers, local communities, and tourists alike. Entomophagy tourism involves a tourist visiting an area to learn about and experience insect-based foods in various forms such as tasting dishes or participating in insect harvesting and preparation. When implemented sustainably, entomophagy tourism can generate additional farmer income, create job opportunities, utilise more farm resources, and preserve natural and cultural heritage. This study aimed to explore and assess the potential of entomophagy tourism in the Mopani District, Limpopo Province, South Africa. This involved investigating the cultural, ecological, and economic dimensions of insect consumption in the region, specifically focusing on how entomophagy can be leveraged to promote tourism. Ultimately, the goal was to provide insights and recommendations that can contribute to the sustainable development of entomophagy tourism in the Mopani District, fostering cultural preservation and economic growth in the region.

Determinants of Receptivity Towards Entomophagy among Young Adults

This research focuses on understanding the factors influencing the acceptance of entomophagy in Morelia, Michoacán. The study involves a survey aimed at two distinct groups of young adults aged 18 to 29 (control and experimental), a demographic known for being open to evolving food preferences. The results revealed interesting differences in preferences between individuals who have and have not tried insect-based foods. Surprisingly, the price did not emerge as a dominant influencing factor. The study suggests entomophagy can be a viable and accepted dietary option when relevant information is easily accessible, potentially reducing neophobia levels.

Who has an appetite for insects? Identifying segments of early adopters of insect-based food and their product attribute preferences: Insights from a choice experiment study in Germany

Despite well-documented scepticism among Western consumers about eating insects, there are groups of potential early adopters who will form the initial market for insect-based food. Understanding the different preferences of these potential early adopters is key to developing effective targeted marketing actions. This study aimed to identify segments of potential early adopters and their distinct product attribute preferences. Via an online survey in Germany (N = 922), we conducted discrete choice experiments using real packaging of insect-based meatballs and crackers. Latent class logit analysis identified four consumer segments for each product, three of which showed a willingness to buy the products. While these potential consumer groups varied in their price sensitivity and insect labelling preferences, they all attached the greatest importance to naturalness claims. Interestingly, sustainability and nutritional information were not top priorities for all consumers; instead we observed the importance of an institutional trust indicator, especially for unconvinced consumers. In conclusion, the results of the present study provide interesting insights for both researchers and practitioners to make informed marketing decisions in the development and labelling of insect-based products.

Comparison of the In Vitro Iron Bioavailability of Tempeh Made with Tenebrio molitor to Beef and Plant-Based Meat Alternatives.

Iron is an essential mineral that supports biological functions like growth, oxygen transport, cellular function, and hormone synthesis. Insufficient dietary iron can lead to anemia and cause fatigue, cognitive impairment, and poor immune function. Animal-based foods provide heme iron, which is more bioavailable to humans, while plant-based foods typically contain less bioavailable non-heme iron. Edible insects vary in their iron content and may have heme or non-heme forms, depending on their diet. Edible insects have been proposed as a protein source that could address issues of food insecurity and malnutrition in low resource contexts; therefore, it is important to understand the bioavailability of iron from insect-based foods. In this study, we used Inductively Coupled Plasma and Mass Spectrometry (IPC-MS) and Caco-2 cell culture models to compare the soluble and bioavailable iron among five different lab-produced tempeh formulations featuring Tenebrio molitor (mealworm) with their non-fermented raw ingredient combinations. Finally, we compared the iron bioavailability of a mealworm tempeh with two sources of conventional beef (ground beef and sirloin steaks) and two commercially available plant-based meat alternatives. The results show that while plant-based meat alternatives had higher amounts of soluble iron, particularly in the Beyond Burger samples, the fermented mealworm-based tempeh had greater amounts of bioavailable iron than the other samples within the set. While all the samples presented varying degrees of iron bioavailability, all products within the sample set would be considered good sources of dietary iron.

Realistic or not? The impact of packaging images on the acceptance of insect-based food products

Purpose This paper aims to examine the image realism effect, studying how changing the front-of-package visual affects the acceptance of an insect-based food by consumers. By comparing reactions to realistic and less realistic images of an insect as an ingredient, this research investigated how visual imagery can affect consumers’ responses, reducing perceived disgust or increasing expected taste. Design/methodology/approach Three experiments studied the impact of realistic (photo) versus less realistic (drawing) images for two types of insects (mealworm, cricket) on consumers’ psychological distance from the image, perceived disgust, expected taste, willingness to eat, purchase intention and food choice. Findings Study 1 demonstrates that using a less realistic insect image reduces perceived disgust, with psychological distance from this image and perceived disgust mediating realism effect on willingness to eat. Study 2 shows that a less realistic insect image, perceived as more remote, improves expected taste and willingness to eat. Study 3 confirms the results by measuring behavior: consumers were more likely to choose the product with the less realistic image. Research limitations/implications The research focused on one kind of product and two ways of depicting this product, limiting the generalizability of the findings for other visual representations and product categories. Practical implications The findings suggest how brand managers can use the image realism effect on the packaging of novel, sustainable products to influence consumers, reducing their disgust and increasing their expected taste. Originality/value This research breaks new ground by explaining how visual cues on packaging affect the acceptance of insect-eating, drawing on construal level theory.

Can Entomophagy be a Good Option for Nutrition and Food Security?

As the population increases, so does the demand for food and resources. Insects are rich in proteins, unsaturated fats and low in carbohydrates. They contain all the essential minerals and vitamins like iron, zinc, calcium, potassium, sodium, copper, riboflavin, biotin, and vitamin B9. Food and Agricultural Organization (FAO), estimated that the world need to increase its food production to feed a worldwide population of more than nine billion by the year 2050. Insects offer so much potential as an alternative food source to meet this need. More than two billion people including various ethnic communities around the world practice entomophagy and consume more than 2000 species of edible insects. Southeast Asian countries and African countries are one of the biggest consumers of edible insects. Due to its health and nutritional benefits, there is an increased demand and interest in European and American countries. Government policymakers, entrepreneurs, educationists, and chefs worldwide are exploring and promoting edible insects. Promoting novel insect-based food that is made of insects or insect ingredients such as insect flour, and insect protein powder could increase consumers and consumption. This review highlights insects as an alternative protein source for future food production. Insects like black soldier flies are used as insect feed for animals in poultry, pigs, and cows and are high in demand. Insects produce significantly less greenhouse gas emissions compared to other livestock. Edible insect farming and entomophagy present an important and sustainable opportunity for the future of food. This could also help generate employment for the rural women and youths as an alternate source of livelihood. Entomophagy has the potential to solve the world’s food hunger and at the same time save the environment.

Acceptance of Muffins (Sweet and Savory) with the Addition of T. molitor, A. diaperinus, A. domesticus, R. differens, Considering Psychological Factors (Food Neophobia Scale, Consumer Attitude).

The aim of the study was to analyze the acceptance of muffins containing a 15% addition of powder from four edible insect species (Alphitobius diaperinus, Tenebrio molitor, Acheta domesticus, Ruspolia differens) in both savory and sweet versions, focusing on the psychological factors influencing their consumption. The study involved 106 adult consumers. Initially, the level of food neophobia (FNS) among participants was determined. Over 80% displayed low to medium levels of neophobia. Similar results were obtained when assessing attitudes towards insects, with most participants showing positive and ambivalent attitudes. Based on these findings, the acceptance of insect-based muffins was evaluated. The level of acceptance of insects varied and depended mainly on taste, smell, and texture. Participants with lower levels of neophobia and positive attitudes towards consuming insects generally rated the insect muffins higher compared to those with higher levels of neophobia and negative attitudes. The sweet versions of insect powder muffins were rated higher, which also indicates preferences and dietary habits. Products with grasshopper powder (GS, GCL) were rated the lowest for both taste versions. Conversely, products based on buffalo worms (BS, BCL) were seen as having the greatest potential for acceptance. Understanding consumer attitudes, neophobia, and levels of acceptance provides valuable insights for designing new insect-based foods.

Consumers of insect-based foods: a cross-cultural study between Belgium and Gabon.

Human consumption of insects has previously been examined in cross-cultural studies. However, such studies rarely include African countries and willingness-to-pay for insect-based food has never been assessed in cross-cultural studies. The current study presents a cross-cultural study conducted with 409 urban dwellers from Belgium (191 males; 218 females) and 412 urban dwellers from Gabon (219 males; 193 females). Each respondent was surveyed with a questionnaire following the Knowledge, Attitude, and Practices model and included questions relative to willingness-to-pay for 2 insect-based foods (insect baguette and insect burger). More than 90% of respondents from both countries were familiar with edible insects. However, acceptance of entomophagy was lower in respondents from Gabon than in respondents from Belgium. Intercultural differences were also recorded between Gabonese ethnic groups. Most respondents who accepted entomophagy were willing to eat the insect baguette and/or the insect burger. These findings confirm that entomophagy could further develop in Belgium and Gabon. Willingness-to-pay varied between countries and between insect-based foods. In Belgium, the average prices of comparable conventional foods (i.e., same foods but without insects) were lower than the average willingness-to-pay for insect-based foods. In Gabon, respondents were not willing to pay extra for insect-based foods. Setting the right price for insect-based foods is a necessary step to promote more frequent insect consumption.

Exploring insect-based food consumption experiences and their consequences in a mature entomophagous community

PurposeTo generate the measurement instrument seven steps were implemented. A total of 819 questionnaires were collected in Yunnan Province, China, where it has long tradition of eating insects.Design/methodology/approachThis study aims to explore the influences of the multidimensional benefits of consuming insect-based food on its consequences. Food neophilia and hedonic motivation are used as moderating variables.FindingsHealth, nutritional value, taste and cultural domains effectively explained consumers’ attitudes toward insect-based food, food consumption value, satisfaction, subjective well-being, loyalty to the restaurant and community attachment. Food neophilia and hedonic motivation partially moderated the relationships between the proposed constructs.Research limitations/implicationsThis study provides a conceptual model for exploring insect-based food consumption experiences and offers a useful guideline for developing and designing marketing strategies for stakeholders in the food and restaurant industry.Originality/valueThis is one of the few studies examining the benefits of consuming insect-based food from the perspective of consumers.

A recipe for change: Analyzing the climate and ecosystem impacts of the Brazilian diet shift

Diet shift is an opportunity to mitigate the impacts of food systems, which are responsible for about a third of greenhouse gas (GHG) emissions globally and exert various environmental pressures on ecosystems. This study evaluates the mitigation potential of both global and local environmental impacts through dietary changes within the Brazilian context. Furthermore, the study aims to identify the potential benefits and trade-offs that may arise from these dietary transitions, thus providing a comprehensive analysis of the overall environmental implications. To this end, a life cycle assessment (LCA) was performed to evaluate the environmental impacts of a conventional diet in Brazil and seven alternatives, namely adjusted-EAT-Lancet, pescatarian, vegetarian, entomophagic (insect-based food), mycoprotein (microbial-based food), and synthetic (cell-based food) diets. Results indicate a substantial mitigation potential for GHG emissions (4-9 kg CO2e/cap/day) (39 % to 86 %) and land use (4-9 m2/cap/day) (38 % to 82 %) through a diet shift from a conventional diet to any of the seven alternative diets. However, certain trade-offs exist. A diet shift demonstrates no mitigation potential of soil acidification, and opportunities to reduce water eutrophication (0.02-0.2 g Pe/cap/day) (2 % to 24 %) and water consumption (0.2-0.5 m3/cap/day) (7 % to 14 %) were only found by completely substituting animal products for insect-based food, microbial-based food, and cell-based food. This study highlights the considerable potential of dietary changes to mitigate global environmental impacts associated with food systems. By revealing opportunities and challenges, this study supports science-based decision-making and guides efforts toward sustainable and environmentally friendly food consumption patterns.

Insect-based food consumption: Hedonic or utilitarian motives? Moderation and segmentation analyses

The ethical and environmental rhetoric employed by institutions and companies to foster insect-based food consumption neglects individualistic motives that can prompt consumers to buy this novel food. To fill this gap, this paper reports a study in which consumers’ hedonic and utilitarian motives and the relative consumer profiles for insect-based food consumption were investigated. Drawing on the Theory of Planned Behavior, the study collected data from 929 participants and applied a structural equation modeling analysis to evaluate the moderating effect produced by hedonic and utilitarian motives on the intention to consume insect-based food. Based on the same dataset, then performed was a cluster analysis to define the profile of consumers according to the level of acceptance of insect-based food. The results indicated that hedonic motives have a positive impact on consumers' intention to consume insect-based food, while utilitarian-ethical and utilitarian-health motives have no and a negative impact, respectively. These findings suggest that promoting the hedonic aspects of insect-based foods would be more effective in increasing consumer acceptance than emphasizing only ethical and health utilitarian values; and they also highlight the importance of creating an emotional and experiential connection with consumers in order to improve the effectiveness of marketing efforts.

Reproductive output and other adult life-history traits of black soldier flies grown on different organic waste and by-products

The interest in mass-rearing black soldier fly (Hermetia illucens) larvae for food and feed is rapidly increasing. This is partly sparked by the ability of the larvae to efficiently valorise a wide range of organic waste and by-products. Primarily, research has focused on the larval stage, hence underprioritizing aspects of the adult biology, and knowledge on reproduction-related traits such as egg production is needed. We investigated the impact of different organic waste and by-products as larval diets on various life-history traits of adult black soldier flies in a large-scale experimental setup. We reared larvae on four different diets: spent Brewer’s grain, ground carrots, Gainesville diet, and ground oranges. Traits assessed were development time to pupa and adult life-stages, adult body mass, female lifespan, egg production, and egg hatch. Larval diet significantly impacted development time to pupa and adult, lifespan, body size, and egg production. In general, flies reared on Brewer’s grain developed up to 4.7 d faster, lived up to 2.3 d longer, and produced up to 57% more eggs compared to flies reared on oranges on which they performed worst for these traits. There was no effect of diet type on egg hatch, suggesting that low-nutritious diets, i.e. carrots and oranges, do not reduce the quality but merely the quantity of eggs. Our results demonstrate the importance of larval diet on reproductive output and other adult traits, all important for an efficient valorisation of organic waste and by-products, which is important for a sustainable insect-based food and feed production.

Attitudes and purchase intentions of polish university students towards food made from insects-A modelling approach.

The marketing of insect-derived protein has led to the development of respective legal regulations on such insects-based foods in the European Union. Despite the interest in the area of insect-based food, European researchers have paid relatively little attention to consumer attitudes and behaviors towards such products or the factors that may affect them. Attempts undertaken so far in this respect are insufficient; therefore, there is a need to continue and expand research in this field. The present study attempts to verify the following research hypotheses: H1. Attitudes towards food containing insects are related to the attributes/characteristics of these products, care for health and the natural environment, and attitudes towards novelty (neophilic/neophobic); H2. Intentions to purchase food containing insects can be predicted based on attitudes towards food from insects, product attributes, and attitudes towards environmental health and novelties. An empirical study was conducted among university students (N = 1063) by an indirect interview method using a specially designed questionnaire, via an online platform (Computer-Assisted Web Interview, CAWI) in November 2023. The questionnaire was validated by assessing the construction validity and estimating the reliability of the scales used. The study results demonstrated that the attributes of insect-based food products can influence the positive attitudes towards them and behavioral intentions to consume them, and that the strength of the impact of health quality traits is far greater than that of the organoleptic or functional traits. A negative, statistically significant value of the correlation coefficient between neophobic attitude and intention to purchase this type of food was observed. Thus, respondents without food neophobia were characterized by a positive attitude towards the purchase of foods containing edible insects in their composition.

Breaking the Taboo: Understanding the Relationship between Perception, Beliefs, Willingness to Eat Insects, and Food Neophobia among Polish Adults.

Insects are a potential source of protein for direct human consumption or indirectly in processed foods. The research examined consumer perceptions and beliefs regarding the consumption of insects and food products containing insect proteins. The study aimed to identify beliefs about insect consumption, assess the perception of food products containing added insect proteins, and gain a deeper understanding of the role of food neophobia in accepting insects as an alternative source of protein. The data were collected in 2023 through a cross-sectional quantitative online survey of a group that was representative of consumers by age, gender, and region sample (n = 1000) who were responsible for food purchasing decisions in their households. While many respondents viewed foods enriched with insect protein as innovative and environmentally friendly, others found the idea of consuming insects repulsive and expressed concerns about potential allergic reactions. Food neophobia was a determining factor in respondents' beliefs and perceptions regarding the consumption of insects and food products containing insect proteins. Respondents were more inclined to consume products with added insect protein rather than visibly identifiable insects. The results highlight the need for targeted marketing strategies and product development approaches to align with the varied expectations of consumers in the rapidly expanding insect-based food market.