While it does not mention the soy specifically, the FAQ on their website indicates that Soylent contains GMOs: https://faq.soylent.com/hc/en-us/articles/201274

While it does not mention the soy specifically, the FAQ on their website indicates that Soylent contains GMOs: https://faq.soylent.com/hc/en-us/articles/201274745-Vegan-Organic-Kosher-Gluten-Free-GMO-free-allergen-free-etc- https://faq.soylent.com/hc/en-us/articles/201274745-Vegan-Or... You can ask them specifically about the soy through their support, if you like.