| You Are What You Eat: A Twin Experiment | |
|---|---|
| Genre | Documentary series |
| Directed by | Louie Psihoyos |
| Country of origin | United States |
| Original language | English |
| No. of episodes | 4 |
| Production | |
| Running time | 198 minutes |
| Production company | Oceanic Preservation Society |
| Original release | |
| Network | Netflix |
| Release | January 1, 2024 (2024-01-01) |
You Are What You Eat: A Twin Experiment is a 2024 Americandocumentary series set for streaming onNetflix. It is based on an 8-week study conducted byStanford University that put 22 sets of genetically identical twins on opposing (but healthy) diets:omnivore andvegan. It was released on January 1, 2024.
You Are What You Eat: A Twin Experiment is based on an 8-week study[1][2] conducted byStanford University that put 22 sets of genetically identical twins[3] on opposing (but healthy) diets: omnivore and vegan. The subjects were given their meals for the first four weeks and had to prepare their own meals during the second 4 weeks.[4][5][3] According to the leader of the study,Christopher D. Gardner, the twins on the vegan diet had "a 10% to 15% drop in LDL cholesterol, a 25% drop in insulin, and a 3% drop in body weight in just eight weeks, all by eating real food without animal products."[3] In addition, 21 (out of 22) of the people asked to follow a vegan diet stayed with it for the entire 8 weeks.[6] Gardner argues that examining genetically identical twins in this manner increases the level of accuracy in the data.[4]
Of the 22 sets of twins, the series focused on four pairs. Carolyn (vegan) and Rosalyn (omnivore) participated in the study with the goal of "increasingFilipino representation in scientific studies".[7] After the study, both returned to an omnivorous diet but now include moreplant-based meals.[7] Pam (vegan) and Wendy (omnivore) areSouth African chefs who run a catering company. After the study, they returned to an omnivorous diet but reduced their intake of meat and cheese.[7] John (vegan) and Jevon (omnivore) are nursing students who also like to work out. After the study, they both returned to an omnivorous diet but cut out most red meat from their diet.[7] Michael (omnivore) and Charlie (vegan) own a cheese business and are known as "The Cheese Twins". Prior to the study, Michael was apescatarian, and Charlie an omnivore. After the study, Michael became avegetarian, and Charlie now follows a mostly vegetarian diet.[7]
VegNews listed it as one of "The 18 Best Vegan Documentaries to Start Streaming Now " in 2024.[8]
You Are What You Eat: A Twin Experiment was nominated forCinema for Peace Dove for Global Health, Technology and Human Enhancement in 2025.[9]
| No. | Episode | Directed by | Original release date |
|---|---|---|---|
| 1 | "Episode 1" | Louie Psihoyos | January 1, 2024 (2024-01-01) |
| 2 | "Episode 2" | Louie Psihoyos | January 1, 2024 (2024-01-01) |
| 3 | "Episode 3" | Louie Psihoyos | January 1, 2024 (2024-01-01) |
| 4 | "Episode 4" | Louie Psihoyos | January 1, 2024 (2024-01-01) |
