Crops can blight, animals can get diseases. I donโt know much about hydroponics but I know that bacteria are a concern. What food source is the most reliable, the least likely to produce less food than expected?
This is the right response, along with proper crop rotation. No magic single correct answer here will work.
Pretty sure thatโs actually just a reference to the film Soylent Greenโฆ
Theyโre making our food out of people, next thing theyโll be breeding us like cattle! for food!
I know youโre not really being serious, but it doesnโt really. I considered the logistics of this for an RP I was running and it doesnโt add up. You need way way way way more food to grow a human being than the human being provides in food when theyโre dead. At most, being very very generous, you could meet 1% of a societyโs food needs with cannibalism. And thatโs a really high estimate. Itโs really more of a special treat than a daily diet!