In this article I will attempt to answer the question; can cultured foods be the ultimate solution to the challenges of food sustainability? To present the reader with a good view of the topic, I will discuss the promises, challenges, and perspectives in the following sections.
Introduction
Food is essential for human survival and well-being, but it also poses significant challenges for the environment, animals, and society. According to the Food and Agriculture Organization (FAO), animal agriculture accounts for about 14.5% of global greenhouse gas emissions[i], 26% of global land use, 32% of global freshwater use, and 78% of global agricultural land use.
Moreover, there is an association between animal agriculture and various ethical, health, and food security issues, such as animal suffering, zoonotic diseases, antibiotic resistance, and food waste. In this context, cultured foods emerge as a promising alternative to conventional meat production.
Cultured foods are foods produced by culturing animal cells in vitro, rather than from slaughtered animals. The process involves extracting a small sample of cells from a living animal, such as a cow, chicken, or fish, and growing them in a bioreactor with a nutrient-rich medium. Then cells harvesting and processing into various products, such as burgers, nuggets, or fillets. This technology can be a potential solution to the challenges of food sustainability, as they could offer several environmental, ethical, health, and food security benefits. However, cultured foods also face many technical, economic, social, and regulatory hurdles before becoming widely available and accepted.
The Promises of Cultured Foods
Environmental Impact:
One of the main advantages is that they can reduce the environmental impacts of animal agriculture. Several studies have compared the environmental impacts of cultured foods and conventional meat production. Some of the early studies suggest that they could significantly reduce greenhouse gas emissions, land use, water use, and pollution from animal agriculture. For instance, a 2011 study[ii] estimated that cultured beef could reduce greenhouse gas emissions by 78-96%, land use by 99%, and water use by 82-96%, compared to conventional beef production. Similarly, a 2015 study[iii] projected that cultured poultry could reduce greenhouse gas emissions by 54-75%, land use by 76-99%, and water use by 53-96%, compared to conventional poultry production.
However, a more recent study[iv] in 2019 used a more rigorous methodology to compare the emissions of cultured beef to cattle production using a climate model that simulates the different behaviors of carbon dioxide, methane, and nitrous oxide, rather than relying on carbon dioxide equivalent metrics. Cultured meat emissions which are primarily carbon dioxide-based, result in less warming than cattle initially, but this gap becomes narrow in the long term as methaneĀ emissions from cattle production do not accumulate as much as carbon dioxide.
Food Safety and Security:
Another benefit of cultured foods is that they can improve animal welfare, food safety, and food security. By producing meat without slaughtering animals, they could prevent the suffering and death of billions of animals every year. Moreover, cultured foods could reduce the risk of zoonotic diseases, such as avian flu or mad cow disease, and antibiotic resistance, as they could be produced in sterile conditions without the need for antibiotics. Furthermore, they could enhance food security by providing a more stable and resilient source of protein that is less vulnerable to climate change, disease outbreaks, or geopolitical conflicts.
Several companies and products are developing and commercializing cultured food products around the world. For example, a Singapore-based company produces cultured chicken nuggets that have been approved for sale by the Singapore Food Agency. A US-based company produces cultured seafood products from fish cells. An Israel-based company produces cultured steak from bovine cells. These examples show that cultured foods are not just a theoretical concept, but a reality that is already happening.
The Challenges of Cultured Foods
Despite the potential benefits, they also face many technical, economic, social, and regulatory barriers that need to be overcome before becoming widely available and accepted. Some of these challenges are:
Technical:
Cultured foods require advanced biotechnology and engineering to produce high-quality products at large scales. Some of the current limitations include high production costs, low scalability, lack of diversity, and consumer perception. For instance, a study estimated that the production cost of cultured beef was about $11 per burger in 2015, which is much higher than conventional beef prices. Another study reported that the maximum production capacity of cultured poultry was about 1 ton per year in 2019, which is far below the global demand for poultry meat.
Another key challenge is that most cultured food products are limited to ground or minced products, such as nuggets or patties, and that producing whole cuts, such as steaks or fillets, is still challenging. On the other hand, consumer acceptance varied depending on the product type, the information provided, and the cultural context, and some consumers expressed concerns about their taste, safety, and naturalness.
Economic:
Cultured foods need to compete with conventional meat products in terms of price, quality, and availability. Some of the factors that influence the economic viability of cultured food products include the cost of inputs, such as cells, media, and bioreactors, the efficiency of production processes, such as cell growth, differentiation, and maturation, and the demand and supply in the market. For instance, many of the manufacturers highlight to their investors that the cost of media accounted for about 55-95% of the total production cost of cultured meat and that reducing the media cost was crucial for making cultured meat more affordable.
Another key economic dimension is improving the efficiency of production processes that could reduce the energy use and greenhouse gas emissions of cultured meat and optimizing the biophysical parameters, such as temperature, pH, and oxygen levels, could enhance the quality and yield of cultured meat. Many researchers predict that the demand for cultured meat would depend on various factors, such as consumer preferences, income levels, population growth, and environmental awareness, and that the supply of cultured meat would depend on the level of innovation, investment, and regulation in the industry.
Social:
Cultured foods need to gain social acceptance and trust from various stakeholders, such as consumers, producers, policymakers, researchers, and activists. Some of the factors that influence the social acceptance and trust of cultured food products include values, beliefs, preferences, knowledge, and culture. For instance, consumer research identified four main values that shaped consumer attitudes toward cultured meat: naturalness, animal welfare, healthiness, and environmental sustainability. Religious beliefs also affect the perception of cultured meat among different faith groups, not to mention that cultural preferences influence the acceptance of cultured meat in different regions. Additional findings were related to how knowledge and information affect the willingness to try cultured meat among different segments of consumers.
Regulatory:
Cultured foods need to comply with regulatory standards and frameworks that ensure their safety, quality, and labeling. Some of the challenges that cultured food products face in terms of regulation include the lack of clear definitions, the diversity of jurisdictions, and the uncertainty of outcomes. For instance, experts argue that there was no consensus on how to define cultured meat among different stakeholders. And that this could create confusion and ambiguity for consumers and regulators. They also compared how different countries and regions approached the regulation of cultured meat. And found that there were significant variations in terms of the regulatory bodies involved, the criteria used, and the timelines followed. Various scenarios could affect the regulatory approval of cultured meat. Which suggests that there are many uncertainties and risks involved in the process.
These challenges show that cultured foods are not a simple or straightforward solution to the challenges of food sustainability. They involve many trade-offs and uncertainties for careful consideration.
The Perspectives on Cultured Foods
Given the complexity and diversity of the topic. It is not surprising that there are different views and opinions among various stakeholders. These perspectives reflect not only the scientific facts and evidence. But also the values, beliefs, preferences, knowledge, and culture of each stakeholder. Therefore, it is important to understand these perspectives and how they influence the development and acceptance of cultured foods. Some examples of stakeholders who have expressed their views on cultured food products are:
Producers:
These are the companies or organizations that produce or plan to produce cultured foods. They are generally supportive of cultured foods as they see them as a profitable opportunity to meet the growing demand for meat while reducing the environmental impacts and ethical issues associated with animal agriculture. They also aim to improve the quality and safety of their products by using advanced biotechnology and engineering.
Consumers:
These are the people who consume or plan to consume cultured foods. They have diverse and dynamic attitudes toward cultured foods, depending on their values, beliefs, preferences, knowledge, and culture. Consumers may be motivated by various factors, such as environmental awareness, animal welfare, health concerns, food security, curiosity, or novelty. They may also have different levels of acceptance and willingness to try cultured foods, ranging from enthusiastic to skeptical to resistant.
Policymakers:
These are the people who make or influence the rules and regulations that govern cultured foods. They have the responsibility to ensure the safety, quality, and labeling of cultured foods. As well as to balance the interests and needs of various stakeholders. Policymakers may face various challenges, such as the lack of clear definitions, the diversity of jurisdictions, and the uncertainty of outcomes. They may also have different goals and priorities, such as promoting innovation, protecting consumers, supporting producers, or preserving traditions.
Researchers:
These are the people who conduct scientific or academic research on cultured foods. They have the role of generating and disseminating knowledge and evidence about cultured foods. As well as providing guidance and recommendations for their development and acceptance. Researchers may focus on various aspects of cultured foods. Such as technical feasibility, environmental impacts, ethical implications, social acceptance, or regulatory frameworks. They may also have different perspectives and opinions on cultured foods, depending on their disciplines, methods, and values.
Activists:
These are the people who advocate for or against cultured foods based on their values, beliefs, or ideologies. They have the power to influence public opinion and policy on cultured foods. By raising awareness, mobilizing support, or challenging opponents. Activists may have different agendas and strategies, such as promoting animal rights, environmental sustainability, food justice, or cultural diversity. They may also have different views and opinions on cultured foods, depending on their alignment or opposition to them.
The Bottom Line
In this article, I have discussed the promises, challenges, and perspectives on cultured foods. A novel alternative to conventional meat production that involves culturing animal cells in vitro. Cultured foods could offer several environmental, ethical, health, and food security benefits. But they also face many barriers that need to be overcome in order to be widely accepted. Cultured foods are not a simple or straightforward solution to the challenges of food sustainability. But a complex and uncertain one that involves various trade-offs and uncertainties that need to be carefully considered. They certainly are not a neutral or objective topic. But a contested and subjective one that involves various stakeholders with different views and opinions.
Therefore, the answer to the main question of this article: are cultured foods the panacea of food sustainability? is not a simple yes or no, but a nuanced answer. It depends on how we define food sustainability, how we measure the impacts, and how we compare with other alternatives. How we address their challenges, how we engage with their stakeholders, and how we envision their future. As a result, I cannot conclude this article with a definitive answer or recommendation. But rather with an invitation for further research and action.
Getting Involved
If you are interested in learning more or getting involved in cultured foods, here are some suggestions:
- Read more about the science and technology behind cultured foods from reliable sources.
- Try some cultured food products if they are available in your area or online.
- Share your opinions and experiences with others through social media or online platforms.
- Participate in surveys or experiments that study consumer acceptance of cultured foods.
- Support or join organizations that promote or produce cultured foods.
- Contact or lobby your policymakers to support or regulate cultured foods.
- Follow or join the debates and discussions among various stakeholders on cultured foods.
I hope that this article has provided you with some useful information and insights on cultured foods and that it has sparked your curiosity and interest in this emerging topic. Thank you for reading!
Additional readings:
Cultured Meat: Promises and Challenges | SpringerLink
Frontiers | How Cellular Agriculture Systems Can Promote Food Security (frontiersin.org)
[i] Sustainability | Free Full-Text | Emissions from Animal Agricultureā16.5% Is the New Minimum Figure (mdpi.com)
[ii] Environmental Impacts of Cultured Meat Production | Environmental Science & Technology (acs.org)
[iii] Anticipatory Life Cycle Analysis of In Vitro Biomass Cultivation for Cultured Meat Production in the United States | Environmental Science & Technology (acs.org)
[iv] Frontiers | Climate Impacts of Cultured Meat and Beef Cattle (frontiersin.org)
One response to “Are Cultured Foods the Panacea of Food Sustainability?”
Quite insightful synthesis. Thanh you, Amir!