Anyone familiar with the numerous accounts of the Buddha's extraordinary compassion and reverence for living beings … could never believe that he would be indifferent to the sufferings of domestic animals caused by their slaughter for food.
Ultimately the case for shunning animal flesh does not rest on what the Buddha allegedly said or didn't say. What it does rest on is our innate moral goodness, compassion, and pity which, when liberated, lead us to value all forms of life. It is obvious, then, that wilfully to take life, or through the eating of meat indirectly to cause others to kill, runs counter to the deepest instincts of human beings.
To put the flesh of an animal into one's belly makes one an accessory after the fact of its slaughter, simply because if cows, pigs, sheep, fowl, and fish, to mention the most common, were not eaten they would not be killed.