The characteristic of this kind of marketing that I enjoy the most is the presence of what I call 'linguistic asymptotes.'
These are words that imply a product has unparalleled or infinite properties.
On the soylent page we have "ubiquitous", "perfectly", "optimized", "automatically", and "optimal" all in the first paragraph.
On a sample of snake oil labels we have 'instantaneously', 'cures all aches and pains', 'always', 'strongest', and 'immediate.'
It's very difficult for a claim that contains a linguistic asymptote to be true, but it's cognitively very easy to understand and process. You don't have to consider your personal medical history, or cost, or anything else really, because the product is 'always' right for you!
Fun stuff.