Soya is not earth friendly. It requires enormous amounts of processing to make the proteins in it bioavailable. Unprocessed, it contains potent toxins.
I live in dairy country and yes, veal is a result of dairy farming (the old 'one man can impregnant ten women but one woman and ten men still just means one baby') but it does not have to be cruel. Around here, veal calves live in 'veal boxes': little cow dog houses out in the pastures. Want to stop factory farming of veal? Don't buy it 'out of season'. Cows calf in February and March. Buy veal after April and you are encouraging false calving schedules, factory farming and host of other evils.
Methane is a waste product only in the developed world. Everywhere else, it is fuel for heating houses and cooking and generating electricity. We just vent it into the air. THAT is something that has frosted my cake since I was ten and saw all the vent pipes in landfills in Queens.
Soy is high in phytoestrogens. Eating a diet high in soya products can increase the incidence of breast cancer, premature puberty in girls and the feminization of boys.
Tofu
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