Rhinehart says the company is "committed" to cooperating with both CFIA and Health Canada, but it's too early to say if and when Soylent will be back. The company was only warned about the situation in early October, the CEO said, and went public when it became clear that it was impossible to avoid at least a short-term disruption in availability.

This doesn't mean Soylent is dangerous, at least if you ask Rosa Foods (whether or not it's palatable is another matter). All the same, this underscores one of the problems with making a food substitute: what's defined as adequate nutrition will vary from country to country. If Soylent and its rivals want to sell in as many countries as possible, they have to create a formula that meets guidelines in all those countries -- not just those on their home turf.