Editing Robert Downey Jr. (section)

===Environmentalism===
In January 2020, during the promotion of his film ''[[Dolittle (film)|Dolittle]]'', Downey announced that he had made the decision to adopt a [[Veganism|vegan]] diet in response to the debate about the climate crisis, stating that "I'm a one-man carbon footprint nightmare colossus"<ref>{{Cite web|last=Pritchett|first=Liam|date=January 20, 2020|title=Robert Downey Jr. Goes Vegan|url=https://www.livekindly.co/robert-downey-jr-vegan/|access-date=June 19, 2020|website=LiveKindly|archive-date=June 21, 2020|archive-url=https://web.archive.org/web/20200621001440/https://www.livekindly.co/robert-downey-jr-vegan/|url-status=live}}</ref> and believing he can do his part to contribute. Downey previously announced the opening of Footprint Coalition, an organization he launched to reduce [[carbon footprint]]s around the world using advanced technology.<ref>{{Cite web|title=Robert Downey Jr. Wants to Use Robotics and AI to Clean up the Earth|url=https://www.greenmatters.com/p/robert-downey-jr-footprint-coalition|access-date=June 19, 2020|website=Green Matters|date=June 5, 2019|archive-date=August 6, 2020|archive-url=https://web.archive.org/web/20200806201425/https://www.greenmatters.com/p/robert-downey-jr-footprint-coalition|url-status=live}}</ref> The Footprint Coalition promotes technologies that protect the environment, such as French insect-farming startup Ynsect,<ref>{{Cite web|date=October 6, 2020|title=Insect-farming startup Ÿnsect extends Series C funding to $372m|url=https://sifted.eu/articles/ynsect-robert-downey-jr/|access-date=February 23, 2021|website=Sifted|archive-date=January 16, 2021|archive-url=https://web.archive.org/web/20210116031707/https://sifted.eu/articles/ynsect-robert-downey-jr/|url-status=live}}</ref> the bio-based alternative to plastic manufacturer RWDC,<ref>{{Cite web|title=RWDC|url=https://www.footprintcoalition.com/rwdc|access-date=February 23, 2021|website=Footprint Coalition|archive-date=January 30, 2021|archive-url=https://web.archive.org/web/20210130084504/https://www.footprintcoalition.com/rwdc|url-status=live}}</ref> and bamboo toilet paper manufacturer Cloud Paper.<ref>{{Cite web|title=Cloud Paper|url=https://www.footprintcoalition.com/cloud-paper-1|access-date=February 23, 2021|website=Footprint Coalition|archive-date=February 5, 2021|archive-url=https://web.archive.org/web/20210205023644/https://www.footprintcoalition.com/cloud-paper-1|url-status=dead}}</ref><ref>{{Cite news|date=October 6, 2020|title=Insect Farm Lures Robert Downey Jr. in $224 Million Fundraising|work=Bloomberg.com|url=https://www.bloomberg.com/news/articles/2020-10-06/insect-farm-lures-robert-downey-jr-in-224-million-fundraising|access-date=February 23, 2021|archive-date=February 8, 2021|archive-url=https://web.archive.org/web/20210208162458/https://www.bloomberg.com/news/articles/2020-10-06/insect-farm-lures-robert-downey-jr-in-224-million-fundraising|url-status=live}}</ref>

In January 2024, Downey stated that he was a [[Pescetarianism|pescetarian]] and had to give up his vegan diet due to low levels of vitamin B12, calcium, and iron.<ref name="DeAngelis 2024">{{Cite web|last=DeAngelis|first=Daniel|date=January 23, 2024|title=Robert Downey Jr. Tried and Failed to Go Vegan: "It Just Doesn't Work for Me"|url=https://www.eatingwell.com/robert-downey-jr-pescatarian-new-book-8548244|website=EatingWell|archive-date=January 23, 2024|archive-url=https://web.archive.org/web/20240123220135/https://www.eatingwell.com/robert-downey-jr-pescatarian-new-book-8548244|url-status=live}}</ref> He co-authored ''Cool Food: Erasing Your Carbon Footprint One Bite at a Time,'' which advocates a [[Low-carbon diet|low-carbon]] plant-based diet to reduce carbon footprints.<ref name="DeAngelis 2024"/><ref>{{Cite web|last=Buxton|first=Amy|date=2022|title=Robert Downey Jr. Secures Book Deal For Carbon Footprint Reduction Manual|url=https://www.greenqueen.com.hk/robert-downey-jr-book/|website=Green Queen|access-date=January 25, 2024|archive-date=January 25, 2024|archive-url=https://web.archive.org/web/20240125130619/https://www.greenqueen.com.hk/robert-downey-jr-book/|url-status=live}}</ref>