This is why I'm very skeptical of the long-term health of food replacements like Soylent. We know vegetables are good for you. We're not really sure why. How can we possibly create a healthy food-replacement system if we don't fully understand what makes food healthy?
I'm really liking mealsquares http://www.mealsquares.com/, they're just expensive. They do rely on whole foods to take care of unknown unknowns in nutritional requirements.
Mealsquares are really small unfortunately. I found it hard to be full on them if I used for my full calorie intake.
Tasty things otherwise, it basically tastes like dense chocolate pastry.
If you want 'fast food', then a combo of prewashed veggies, frozen food like trader joes dumplings and things like mealsquares and soylent can work. I myself dont really like soylent.
I don't think we know this. We know that we can live complete, healthy lives on them, but we know that about meat and carbs, too. I'm happy that people are experimenting in an extreme way; that's the best way for me to learn from their experiences what works and what doesn't.
All these "vitamin supplements aren't doing anything" articles I see are talking about general population people eating standard diets and then supplementing them with multi vitamins.
I'm interested in what happens when someone takes meal replacements that don't necessarily cover the micro nutrients and then takes multi vitamins.
Indeed, the fibre content makes a big deal too. The more biochemistry and medicine you learn, the more you realize most of it hasn't even finished exploring "stamp collecting" mode. But what can you do? You have to keep pedaling and steering since you only get one life to work on.