It's a difficult problem, but food just takes too much of people's time. Something like a personalized service that brings you food according to your own nutritional schedule would be nice.
Of course the existence and popularity of something like Soylent goes against my assumptions. I imagine there are just people who value their time over enjoyment from food, as well as people who feel the opposite.
- Only drink water
- Eat once a day
- Eat the same thing every day (mostly)
- Prepare all your meals once a week
If you ignore weekly grocery shopping and meal prepping, I spend less than 1 hour a day thinking about food, preparing food and eating food.