YN > oui. Et c'est une référence délibérée à Soleil vert.
Zeph > en gros, ils font de l'Agile :

The issues cropping up like this are on some level a function of Soylent’s approach to food. The company is continually iterating on its own product and is very public about the changes it makes. It’s put out a succession of new products over the past several months, and it’s clear now that acting like a startup when it comes to food has its downsides — clearly, more testing was needed.

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For the Powder, Soylent’s current suspicion is that one of the “few” ingredients that changed between version 1.5 and 1.6, released in June, is “triggering a food intolerance” in some people.