Yes, because a handful of smiley tech nerd kids know nutrition better than professional researchers with decades of experience, backed by hundreds of millions of dollars annually.
In all seriousness, kudos to these kids and their ambitions. However, the software model of iterating fast doesn't always translate to the physical world, especially when it comes to items ingested by human beings.
It's one thing to "pivot" on your Instagram clone, but taking some experimental goop that hasn't been rigorously tested with good unbiased science (not to mention with a sample size larger than one 24-year old) and deciding to market it is another thing--especially when none of your "team" are nutritionists by trade. There's a reason we have the FDA. I get that this is the "startup culture", but let's take a moment to realize the physical world doesn't allow us to recompile and try again very easily.