Do Buddhist practitioners have to be vegetarian?

Master Jin Kui's answer, I hope I can help you:

Why should Buddhist practitioners be vegetarian? He has a classical basis, and chanting Buddha is a great multiplication, isn't it? Mahayana, the Sanskrit says: Carnivores are merciful species. A person who eats meat will cut off great compassion, and cutting off great compassion is equivalent to cutting off the seeds of becoming a Buddha. If you want to become a Buddha, you should be vegetarian instead of eating meat! The first sentence of "pure industry and three blessings" in Guanjing is: don't kill me. Kindness does not tell us that vegetarianism is the best behavior not to kill! So when you recite Buddha for ten days and ten nights or even one day and one night, it has a kind of fasting and purity. Do fasting and purity require you to be a vegetarian? Can you eat meat? What is fasting and abstinence? So these classics tell us that a Buddhist should be vegetarian, but you don't have to show the word vegetarian, it contains this meaning. Then the founder Dade always advised us to be kind, not to kill, to release, and to be vegetarian. People like master lianchi, Yan Yi and Yin Guang all have this emphasis, so don't doubt it. Are you still greedy for meat? It doesn't matter if you're not a vegetarian. In case of big trouble, needless to say ... you only eat vegetarian food. In case of serious illness, there is no need to kill at home. The founder will give you such a good reason. This is not a matter of course. Buddhist practitioners had better eat vegetarian food. If you can't do it, it's okay to eat vegetarian food or three clean meats. That's the idea. But if you really care about life and death, you should be a vegetarian. This is the amount of sacred words. The thoughts of our ancestors are all well-meaning teachings conveyed to us, so don't doubt it, just follow the teachings.