Uploaded July 2015 | Updated September 2026, 9 hours ago

---

Grist food writer Nathanael Johnson unpacks and summarizes a half year of research in a neatly packaged 2.5 minute video. If this piqued your interest, check out the rest of his writing here: grist.org/series/hungry-hungry-humans

Help us caption & translate this video!

amara.org/v/QTLF