Skip to main content
Log in

Should We Eat the Human-Pig Chimera?

  • Research article
  • Published:
Food Ethics Aims and scope Submit manuscript

Abstract

Scientists will soon be able to grow human-transplantable organs in pigs. This paper focuses on the question of whether it is morally permissible to eat genetically altered pigs after harvesting their organs. Despite a lack of scholarly discussion of this question, the impetus for it is straightforward. There is no reason to think that peoples’ taste for pig will subside when scientists reach the point of being able to growing mature human organs inside them. In this paper, I argue that there is a good reason why we should eat genetically altered pigs and currently no compelling reasons to the contrary.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Notes

  1. For ethical discussion, see Streiffer (2005) and (2019), Koplin and Savalescu (2019), Bourett et al. (2016), Shaw et al. (2015), Eberl and Ballard (2009), and Robert and Baylis (2003). For scientific discussion, see Tarifa et al. (2020), De Los Angeles, Pho, and Redmnond (2018), Yamaguchi et al. (2017), Rashid, Kobayashi & Nakauchi (2014), Nagashima et al. (2014), Kobayashi et al. (2010), Wu et al. (2016), Wu et al. (2017), and Suchy and Nakauchi (2017) and (2018).

  2. I am focusing on genetically altering pigs for organ donation. I am not going to discuss genetically altering pig brains to study and develop new treatments for neurodegenerative disorders.

  3. The Least Harm Principle is borrowed from Tom Reagan (1983) and Stephen Davis (2003). The harm can be either physical (e.g., being kicked in the ribs) or psychological (e.g., being the object of a smear campaign). The sufferer of harm may be consciously aware of the harm (e.g., experience the pain of being kicked in the ribs), but this need not be the case. A creature can be harmed but, for a variety of possible reasons, be unaware of being harmed. For instance, a person may be ridiculed by her peers, but fail to recognize the ridicule because it is never before her.

  4. The position defended in this paper is in line with “new omnivorism,” which, according to Andy Lamey, refers to the position that “endorses animal protection as philosophy but goes on to defend eating animals.” (Lamey 2019: 1; see Fischer and Lamey 2018: 410). New omnivorists agree that animal suffering is morally significant and that factory-farmed animals suffer greatly. They go on to note, however, that animals also suffer in a variety of ways in the planting and harvesting of plants, and thus, minimizing animal suffering does not require us to adopt a strict vegetarian diet.

  5. See Streiffer (2019: section 2)

  6. J. Jeremy Wisnewski notes similarly that disgust “by itself is no indication of whether or not” eating something “is immoral” (2007: 19). Shaw and colleagues write that “revulsion does not constitute a sound reason for objecting to something” (2015: 973).

References

  • Abbate, Cheryl. 2019. Save the meat for the cats: Why it is wrong to eat roadkill. Journal of Agricultural and Environmental Ethics 32 (1): 165–182.

    Article  Google Scholar 

  • American Transplant Foundation, 2019. “Facts and Myths” https://www.americantransplantfoundation.org/about-transplant/facts-and-myths/

  • Bourret, R., E. Martinez, F. Vialla, et al. 2016. Human–animal chimeras: Ethical issues about farming chimeric animals bearing human organs. Stem Cell Research & Therapy 7: 1–7.

    Article  Google Scholar 

  • Bruckner, Donald 2015. “Strict Vegetarianism is Immoral.” In The Moral Complexities of Eating Meat, Ben Bramble and Bob Fischer (eds.), Oxford University Press, 30–47.

  • Cox, Christopher. 2010. “Consider the oyster.” Slate. April 7, 2019. https://slate.com/human-interest/2010/04/it-s-ok-for-vegans-to-eat-oysters.html

  • Cengiz, N., and C.S. Wareham. 2019. Pig-to-human xenotransplantation: Overcoming ethical obstacles. South African Journal of Bioethics and Law 12 (2): 66–71.

    Article  Google Scholar 

  • Crane, Andrew, J.P. Voth, F.X. Shen, and W.C. Low. 2019. Concise review: Human-animal neurological chimeras: Humanized animals or human cells in an animal. Stem Cells 37: 444–452.

    Article  Google Scholar 

  • Davis, Stephen. 2003. The least harm principle may require that humans consume a diet containing large herbivores, not a vegan diet. Journal of Agricultural and Environmental Ethics 16: 387–394.

    Article  Google Scholar 

  • De Los Angeles, A., N. Pho, and D.E. Redmond Jr. 2018. Generating human organs via interspecies chimera formation: Advances and barriers. The Yale Journal of Biology and Medicine 91 (3): 333–342.

    Google Scholar 

  • DeGrazia, David. 2002. Animal rights: A very short introduction. Oxford: Oxford University Press.

    Book  Google Scholar 

  • DeGrazia, David. 2009. Moral vegetarianism from a very broad basis. Journal of Moral Philosophy 6 (2): 143–165.

    Article  Google Scholar 

  • Eberl, J.T., and R.A. Ballard. 2009. Metaphysical and ethical perspectives on creating animal-human chimeras. The Journal of Medicine and Philosophy 34: 470–486.

    Article  Google Scholar 

  • Ferré, Frederick. 1986. Moderation, morals and meat. Inquiry 29 (1–4): 391–406.

    Article  Google Scholar 

  • Fischer, Bob. 2016. Bugging the strict vegan. Journal of Agricultural and Environmental Ethics 29: 255–263.

    Article  Google Scholar 

  • Fischer, Bob. 2018. Arguments for consuming animal products. In The Oxford handbook of food ethics, ed. A. Barnhill, M. Budolfson, and T. Dogget, 241–266. New York: Oxford University Press.

    Google Scholar 

  • Fischer, Bob, and Andy Lamey. 2018. Field deaths in plant agriculture. Journal of Agricultural and Environmental Ethics 1: 1–20.

    Google Scholar 

  • Han, Xiaoning, et al. 2013. Forebrain engraftment by human glial progenitor cells enhances synaptic plasticity and learning in adult mice. Cell Stem Cell 12: 342–353.

    Article  Google Scholar 

  • Hsiao, Timothy. 2015. In defense of eating meat. Journal of Agricultural and Environmental Ethics 28 (2): 277–291.

    Article  Google Scholar 

  • Hsiao, Timothy. 2017. Industrial farming is not cruel to animals. Journal of Agricultural and Environmental Ethics 30 (1): 37–54.

    Article  Google Scholar 

  • Hughes, Jonathan. 2016. “Human-pig ‘chimeras’ may provide vital transplant organs, but they raise ethical dilemmas” The Conversation. https://theconversation.com/human-pig-chimeras-may-provide-vital-transplant-organs-but-they-raise-ethical-dilemmas-60648

  • Karpowicz, P., C. Cohen, and D. van der Kooy. 2005. Developing Human-Nonhuman Chimeras in Human Stem Cell Research: Ethical Issues and Boundaries. Kennedy Institute of Ethics Journal 15 (2): 107–134.

    Article  Google Scholar 

  • Karpowicz, P., C. Cohen, and D. van der Kooy. 2004. It is ethical to transplant human stem cells into nonhuman embryos. Nature Medicine 10: 331–335. https://doi.org/10.1038/nm0404-331.

    Article  Google Scholar 

  • Kass, L. 1998. The wisdom of repugnance: Why we should ban the cloning of humans. Valparaiso University Law Review 32 (2): 679–705.

    Google Scholar 

  • Kobayashi, T., T. Yamaguchi, S. Hamanaka, et al. 2010. Generation of rat pancreas in mouse by interspecific blastocyst injection of pluripotent stem cells. Cell. 142 (5): 787–799.

    Article  Google Scholar 

  • Koplin, Julian, and Julian Savulescu. 2019. Time to rethink the law on part-human chimeras. Journal of Law and the Biosciences 6 (1): 37–50. https://doi.org/10.1093/jlb/lsz005.

    Article  Google Scholar 

  • Lamey, Andy. 2019. Duty and the best: Should we eat meat in the name of animal rights? Cambridge: Cambridge University Press.

    Book  Google Scholar 

  • Lu, Matthew. 2013. Explaining the wrongness of cannibalism. American Catholic Philosophical Quarterly 87 (3): 433–458.

    Article  Google Scholar 

  • Nagashima, F., I.K. Suzuki, A. Shitamukai, et al. 2014. Novel and robust transplantation reveals the acquisition of polarized processes by cortical cells derived from mouse and human pluripotent stem cells. Stem Cells and Development 23: 2129–2142.

    Article  Google Scholar 

  • Nussbaum, Martha. 2004. Hiding from humanity: Disgust, shame, and the law. Princeton: Princeton University Press.

    Google Scholar 

  • Rachels, Stuart. 2011. Vegetarianism. In The Oxford handbook of animal ethics, ed. T. Beauchamp and R. Frey, 877–905. Oxford: Oxford university Press.

    Chapter  Google Scholar 

  • Rashid, Tamir, Toshihiro Kobayashi & Hiromitsu Nakauchi. 2014. “Revisiting the flight of Icarus: Making human organs from PSCs with large animal chimeras” 15 Cell Stem Cell 406.

  • Reagan, Tom. 1983. The case for animal rights. Berkeley: University of California Press.

    Google Scholar 

  • Robert, J., and F. Baylis. 2003. Crossing species boundaries. The American Journal of Bioethics 3 (3): 1–13.

    Article  Google Scholar 

  • Savulescu Julian. 2016. “Should a human-pig chimera be treated as a person?” Aeon https://aeon.co/ideas/should-a-human-pig-chimera-be-treatedas-a-person.

  • Savulescu. 2014. The ethics of producing in vitro meat. Journal of Applied Philosophy 31 (2): 188–202.

    Article  Google Scholar 

  • Shaw, D., W. Dondorp, N. Geijsen, et al. 2015. Creating human organs in chimaera pigs: An ethical source of immunocompatible organs. Journal of Medical Ethics 41: 970–974.

    Article  Google Scholar 

  • Streiffer, R. 2003. In defense of the moral relevance of species boundaries. The American Journal of Bioethics 3 (3): 37–38.

    Article  Google Scholar 

  • Streiffer, Robert. 2005. At the edge of humanity: Human stem cells, chimeras, and moral status. Kennedy Institute of Ethics Journal 15 (4): 347–370.

    Article  Google Scholar 

  • Streiffer, Robert. 2019 "human/non-human chimeras", The Stanford Encyclopedia of Philosophy, Edward N. Zalta (ed.), URL = <https://plato.stanford.edu/archives/sum2019/entries/chimeras/>

  • Suchy, F., and H. Nakauchi. 2017. Lessons from interspecies mammalian chimeras. Annual Review of Cell and Developmental Biology 33 (1): 203–217.

    Article  Google Scholar 

  • Suchy, F., and H. Nakauchi. 2018. Interspecies chimeras. Current Opinion in Genetics & Development 52: 36–41.

    Article  Google Scholar 

  • Tarifa, Cynthia Morata, Luis López Navas, Garikoitz Azkona, and Rosario Sánchez Pernaute. 2020. Chimeras for the twenty-first century. Critical Reviews in Biotechnology. https://doi.org/10.1080/07388551.2019.1679084.

  • United States Department of Agriculture. 2019. Animal Welfare Act and Animal Welfare Regulations. https://www.aphis.usda.gov/animal_welfare/downloads/bluebook-ac-awa.pdf

  • Wisnewski, J. Jeremy. 2007. Murder, cannibalism, and indirect suidice: A philosophical study of a recent case. Philosophy in the Contemporary World 14 (1): 11–21.

    Article  Google Scholar 

  • Wu, J., H.T. Greely, R. Jaenisch, et al. 2016. Stem cells and interspecies chimaeras. Nature 540: 51–59.

    Article  Google Scholar 

  • Wu, Jun, et al. 2017. Interspecies Chimerism with Mammalian Pluripotent Stem Cells. Cell 168 (3): 473–486.e15. https://doi.org/10.1016/j.cell.2016.12.036.

    Article  Google Scholar 

  • Yamaguchi, T., H. Sato, M. Kato-Itoh, et al. 2017. Interspecies organogenesis generates autologous functional islets. Nature 542: 191–196.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Christopher Bobier.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Bobier, C. Should We Eat the Human-Pig Chimera?. Food ethics 5, 15 (2020). https://doi.org/10.1007/s41055-020-00073-6

Download citation

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s41055-020-00073-6

Keywords

Navigation