Oranges to orange juice. The perfect microcosm for the modern food system.
Take a nutritious whole food.
Strip away all the fibre. Add some stuff to prolong shelf-life and boost flavor. Create some fancy packaging. Sell it as a more convenient option to peeling and eating an orange.
Unfortunately the orange juice also contains more calories, more sugar and does nothing to promote satiety.
The end result, we overeat and put on weight.