I find this pretty funny, but just from a "food of the future" point of view.
I'm not sure that I fully understand it, but the only benefit I see in this is if it's cheap and can help with world hunger/malnutrition, people who physically can't eat, or for extremely under/overweight people. Otherwise, for most of us, I don't see how this would be any more beneficial than any other nutritional drink mixes, diet drinks like Almased, or plain ol' multivitamins and supplements added into a healthy diet of whole foods and exercise. I personally believe chewing food and consuming fresh foods is extremely important. It might be "easier" or more efficient (the environmental bit it debatable), but you wouldn't get to enjoy meals with family & friends, and honestly, how could someone be happy having to consume and taste the same boring thing every single day? That's not appetizing. We need a variety of different foods in our diets for a reason.
Another thought I had was you'd THINK health nuts would be the ones attracted to it and spend their "extra" times exercising and living a healthy lifestyle, but others may use not having to go grocery shopping or clean to kitchen as another excuse to be lazy. This could possibly be very appealing to the lazy crowd and possibly college kids, as well. Basically what I'm trying to say is I can see it being used for unhealthy intentions.
I love to cook and taste different foods, so I'd personally never do it. I'm not saying it won't work for others, as I'm pretty curious to see how it goes. As long as it truly fuels your body and Adipose babies don't start popping out, it might do some good. We'll see.
Nutritionally, it seems like a good idea, because a lot of people have problems getting all their daily nutrients (like me: where do I get biotin?! lol). But it just feels a lot like what you're given in the hospital when you are unable to eat... or like Ensure/Glucerna (which I don't want to touch).
It seems okay once in a while, if you didn't eat enough for the day... but like in Soylent Green... no thanks. :P I'd stick to enjoying
real food.
Basically all veggies, fruits, berries and nuts, as well as eggs, fish, and milk are rich in biotin. If you eat real food, you most likely get plenty of it.
I quickly skimmed the links and in theory Soylent would be a fine food option for nutrition buffs if made more visually pleasing. Aesthetically it looks like vomit so not very appealing to typical buyers who value taste over substance, although actually in the ingredients listed on Wiki seems to have the essential minerals and vitamins most people lack in their diet as America is notorious for carbohydrate, processed, oily, salty, sugary foods versus organic/whole foods which is and has been changing especially in certain locations where good nutrition is on the rise. It all comes down to knowledge and whether someone wants to use that knowledge to develop good dietary habits although it is admittingly hard when most "American" food is usually served in larger portions of more of the nonessential things to be ingested when we should be eating smaller meals adequately proportioned according to the food groups in moderation especially carbs, dairy, oils and sugars...and eating more healthy alternatives of white meat/certain seafood/beans etc. for protein, fruit, and more green/leafy vegetables. Anyways Soylent in theory may provide as an understandable dietary option, but its marketability aesthetic-wise is lacking although it may be relatively "cheap" in terms of the cost-benefit yet doubt people of the masses would choose to buy the product because of its lack luster. People with the knowledge would most likely opt to buying whole foods than buy something that looks like vomit and probably isn't very appetizing.
I can't speak for portions, but many (if not the majority) Americans can't afford much fresh produce, let alone organic produce or free-range chicken/grass-fed beef. Most don't have the knowledge or space to grow and make their own food, either, so they buy what they have coupons/sales for which are for chips, cookies, and frozen meals. That has become our way of life, and not always by choice. Of course, there are many healthier alternatives that are cheaper such as dried beans and frozen veggies, but many people simply don't have the knowledge or desire to look. That's where the first problem lies, in my opinion. Americans have forgotten sustainable living.
With that being said, Solyent might work for that if it goes mainstream, but I think we'd be better off reteaching America sustainability and healthy living rather than relying on a drink to supply them with their necessary nutrients. When you can afford it, I believe there are
far more benefits to cooking and eating real food than just drinking it. It goes further than nutrition alone.