I’m not arguing here about what exactly is ideal for health and longevity. My point is merely that human societies have survived for generations and for millennia on diets at either extreme of the spectra, whether looking at carb versus protein, or fiber levels, animal versus plant… proving nothing but this: the human body is very flexible and resilient…
… and I’m stressing this point in order to support the idea that someone striving for a healthy diet need not focus too heavily on exact ratios or exact amounts of any given thing, macro or micro.
To think that Soylent may have some sort of cumulative “bad effect” over time because it’s slightly low or slightly high in one thing or another belies the proven ability of our bodies to deal with major differences, never mind minor ones!
There is general nutritional advice out there - and let’s be far, it’s good advice - that says you should eat a variety of foods. But this isn’t good advice because eating variety necessarily gets you a perfect blend of foods. In fact, it pretty much can’t - any variety you pick will be imperfect in some ways, low on this and high on that, unless you choose the variety by targeting macros and micros to hit a specific set of targets - which is exactly how to formulate Soylent.
The reason “variety” is good advice for most people is that we all have food preferences. We all tend to like certain foods. And if we eat mostly those foods, we’re missing the stuff that’s in other foods. The classic example is the “meat and potatoes man.” He needs more variety - and variety does not mean more types of meat or different kinds of potato, it means adding veggies to the mix, because that’s what’s missing.
Soylent is different because it’s designed from the start not to be missing something in the mix.