but it's nice to have it confirmed by careful research -
the best diet - feeding the most people with the most effective land use - is one that includes a little meat/dairy and the rest low fat plant foods.
http://www.news.cornell.edu/stories/Oct07/diets.ag.footprint.sl.html
When I saw the deer in the snowy suburban backyard where I am visiting here in Iowa, I commented that if I lived where game were that readily available, I might still eat meat.
Of course, if you have to plant a vegetable garden to feed the deer, then you might think twice, but these deer seemed to be browsing on shrubbery that would not be useable human food.
And don't you love the term "foodprint"?
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