As we become increasingly aware of the finite limits to the carrying capacity of the planet, the inefficiency of converting eight or nine kilograms of grain protein into one kilogram of animal protein for human consumption would by itself be sufficient argument against continuation of our present dietary habits. When one adds in the abuse of animals inherent to factory farming methods, the depletion and contamination of aquifers, the intense use of grain crops and grazing areas, and the release of methane and other greenhouse gases into the atmosphere, the case against our meat-eating behavior becomes overwhelming. And that is before we factor in the effects of animal fats - an inescapable component of meat and poultry - on human health.

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I was raised on a dairy farm and ate plenty of meat and eggs until about twenty years ago. I started doing nutritional research, and a decade or so after that my family made some major dietary changes. I'm just paying attention to what the data are telling me. The scientific evidence came first.

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To give a child animal products is a form of child abuse. (child's diabetes related to cows' milk.) (His book Food For Life cites 300 dietary studies.)

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Do we, as humans, having an ability to reason and to communicate abstract ideas verbally and in writing, and to form ethical and moral judgments using the accumulated knowledge of the ages, have the right to take the lives of other sentient organisms, particularly when we are not forced to do so by hunger or dietary need, but rather do so for the somewhat frivolous reason that we like the taste of meat? In essence, shouldn't we know better?

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