Steve had a number of out there beliefs. At one point, before Co-founding Apple, Steve believed his fruit only diet would mean he no longer needed to shower, much to the dismay of his Atari coworkers. He also tried to fix his pancreatic cancer through diet.
I suspect he had many more out there beliefs, but was self aware enough to keep them to his self.
Likely. It probaby wasn't the only thing though. The high amounts of sugar, weird fasting habits, drug use, extreme stress he put himself in, and his arrogance in ignoring sound medical advice might have all helped do him in from what I gleaned from his biography. His pancreas could only take so much apparently.
There are a lot of plants that you can eat a little part of, which then grows back, like the leaves on chard or lettuce plants. In our garden the chard plants produced for months.
In commercial farming, it's just cheaper to cut the entire plant off and clear the land for the next crop.
