Many of these are also reasons to be afraid of my current diet.

But then you're not asking for money to commercialize your current diet and sell it to the general population with the explicit or implicit assurance that it's all they need to stay healthy, are you?

Besides, we do have a bunch of empirical data (admittedly, much of it confusing and incomplete) on the effect of various foods on human health. I don't think it suggests that something like Soylent is going to be good for you.