[jhardy54]

Reading the actual study, I can't help but think that the authors are being intellectually dishonest. Their logic is thus:

> Cropland in perennial forages included hay crops and grazing on land which could be cropped but is used for pasture.

A: Perennial cropland is used as pasture for animal agriculture.

> Perennial cropland requirements were zero in the vegan diet.

B: Vegans don't require pastures for animal agriculture.

> The ovolacto- and lacto-vegetarian diets used about half of the cropland restricted to perennial forages, while the vegan diet used none of the restricted cropland.

C: Therefore the vegan diet wouldn't have any use for perennial cropland.

This would be true if perennial crops for humans didn't exist, but that's just not true. For example, we can grow perennial sunflower (!), grain (!!) and rice (!!!): https://en.wikipedia.org/wiki/Perennial_crop#Example_crops