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Comment by shadykiller | Hacker News Reader

I'm still skeptical if veganism suits everyone. I don't think we lived 100% off plants at any point in history. There isn't much evidence that plant based protein is superior or equivalent to animal based(grass fed).

Also, agriculture itself isn't blood free. So many animals die while procuring the land for agriculture or even while growing crops on an agricultural land.

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The vast majority of the crops we grow end up feeding livestock. If you're concerned by suffering caused by agriculture, we can counterintuitively eat more plants to reduce our total plant needs. See biomass transfer efficiency.

I don't think that's what it's entirely about. It's way more efficient for people to eat plants than meat. https://en.wikipedia.org/wiki/Energy_flow_(ecology)

> There isn't much evidence that plant based protein is superior or equivalent to animal based(grass fed).

Where do you think the animals get the protein from in the first place? (hint: you already mentioned it)

There is a different between consuming plant protein directly and indirectly. Take the example of Giant Pandas, they have to eat constant to meet the demands of their body since they just eat plants. Their cousins on the other hand are not feeding all the time.

Also we cannot digest a lot of plant protein or covert it from complex fibre since we lack the enzymes and gut microbes to process them.

Don't cows get protein from the gajillions of microbial creatures that digest the grass they eat, rather than from the grass directly?

What is the point of this comment? Nothing is 100% free. What matters is what choices are better.

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