They actually noted that "Unfortunately due to regulatory constraints, our initial runs of Soylent will be available within the United States only. We are dili

They actually noted that "Unfortunately due to regulatory constraints, our initial runs of Soylent will be available within the United States only. We are diligently working to provide it worldwide as soon as possible." So indeed the UK won't be seeing this sold (legally) anytime soon. That said, I don't think it's really a case of whether or not Soylent is safe. Even if they have FDA approval, and produce Soylent under the strictest conditions of food safety, the real problem is their idea behind Soylent's use -- that it can replace a balanced diet. I'm sure it's safe to have it occasionally, if even a few portions of it everyday. But to virtually replace your diet? That's a bold claim, and with dangerous consequences at that.