[QUOTE=fluiddruid]
The exact same thing is true of an omnivore diet. There is nothing inherently about vegetarianism that makes it more difficult; plenty of people eat themselves to heart disease and diabetes on omnivore diets.
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Depends on what you define as “difficult.”
The reason omnivorous diets are “easier” is you’re much less likely to run into a deficiency disease, in “nature” by living as an omnivorous human. Sure, with modern technology and a thorough understanding of what supplements you need to take and what exotic, imported-from halfway-across-the-world plants to eat it’s easy to be a perfectly healthy vegetarian. But that’s not realistic for the human population at large, and even if it is now, vegetarianism (or living as a pure carnivore) is inherently more difficult.
I think vegetarianism is inherently more difficult for the following reasons:
-The body needs protein, in many areas of the world, it’s difficult to find lots of protein rich plants in nature
-The body needs the Essential Fatty Acids, said acids are way more difficult to obtain through plant matter alone (although in general almost no one gets as much EFA as they need, it’s hard without a supplement in the first place)
-The body needs Vitamin B12–this one is tricky
The issue of getting a wide mix of vegetarian fare, rich in proteins, with a nice balance of fat (essential for life) and carbohydrates (essential for energy) is solved “easily” by having a global network of trade and massive supply chains coupled with high disposable income and the ability to be very picky about what you buy at the supermarket.
The issue with EFAs is possibly a non-issue, as I believe most people are chronically EFA deficient.
B12 is both essential and virtually non-existant in nature from exclusively plant-sources. B12 actually can’t be produced by any plant or animal, but the bacteria that can produce it frequently thrive in meat and dairy products.
The few exclusively non-animal sources I’m aware of are either incredibly obscure or require significant processing, for example fermented soy products can contain B12. As does the Chinese herb Dang Gui.
In the modern world, you easily sidestep this problem with B12 supplements, B12 fortified foods (tons of foods like breakfast cereal are fortified with B120 or et cetera.
But when the only way a vegetarian diet is feasible is with:
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The benefit of disposable income + global interlocking trade and massive supply chains
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Modern supplements or highly processed, selective foods
I find it hard to accept that such a diet is no more “inherently difficult” than omnivorism. For some people, the difficulty of adhering to a strict vegetarian diet would not only be inherently greater, it would be insurmountable or even deadly.