Hazlenuts, walnuts, almonds, and cashews need from 1100 to 1900 gallons per pound.
So, I'm not quite sure what you are trying to prove other than don't farm things that require water in areas that also require irrigation.
Oils can help your body absorb nutrients more effectively and also aid in other cellular processes.
Carbs are energy and your body needs this.
The key is to not consume processed carbs/oils that your body can't integrate.
Carbs from fruits and natural oils (like coconut) are a large component of any thoughtful vegan's diet. You can eat lots of these foods because they not only have carbs but they also have fiber, protein and other vitamins in good proportion, so "carb the f* up!"
Obsessively starving your body of all carbs and eating lots of meat is an extreme and unbalanced diet and will certainly lead to an early death. Just eat whole foods.
I'm dubious about this statement. There is a lot of ocean, so seafood farming is probably quite capable of feeding humans meat. In addition, western societies currently overconsume meat. I suspect that if calorically balanced levels of consumption were observed, we probably have plenty of land.
> Some vegans do it because it's healthier. In general you can expect to ingest less toxins by eating lower on the food chain.
I see a lot of vegans eating far less healthy diets than those of carnivores. They up the oil and carb content quite significantly to make things taste better/create satiety.
I find that vegetarians (and even those who just back off on meat) seem to eat healthier than vegans, in general.