Soylent
www.soylent.com

"Soylent" is a white powder, to be mixed with water in a shaker, that provides complete and healthy nutrition. After shaking the powder in 2x the volume of water, the result looks and tastes like soy milk. Shelf life is 1 year, fridge life (after preparation) 2 days. A soylent-only diet costs $300 a month per person (assuming 2000 calories per day).

Advantages:

Never spend time cooking or shopping for food

Easily control calorie intake

Guaranteed healthy nutrition (proteins, carbs, good fats, vitamins, minerals, - the works)

All you need is mix with water

Powdered food is easy to carry for long trips

If a prepared portion of soylent goes bad, you will feel the sour taste (just like soy milk)

Drawbacks:

Soylent is created using science and technology; it is not a result of thousands of years of direct human experience

The only way to purchase Soylent is to order from one company over the Internet

Available only in the USA

If you forget to wash your shaker from soylent leftovers, it will solidify and will be hard to remove

I'm giving it a test drive, will consume 1 soylent meal a day.