In Vajrayana, especially stated in the stanzas of the Kalachakra Tantra, it is very wrong to eat meat. Karma of many people sharing the meat of one animal is grave enough. Karma of one person consuming many small animals is much, much worse. For example, processed meats like sausage, hot dogs, luncheon meat, etc. are very often made from the meat and organs of various animals. Eating these kinds of meat will produce tremendous negative karma, tantamount to the one committed by eating many lives. It is Vajrayana’s view that all Mahayana practitioners must refrain from eating any kind of meat.
~ Depicted from THE RIGHT VIEW - Why Vegetarian?