Monks can't eat anything.

You can't eat meat, fish, tobacco and alcohol. Others are basically not prohibited.

"Meat" refers to vegetables with fishy smell and peculiar smell, such as garlic, green onions and leeks. The Shurangama Sutra says: raw meat makes you angry, and cooked food helps you to be immoral. So Buddhism requires fasting.

"fishy" refers to meat, that is, the meat of various animals, even eggs. Monks are not allowed to eat this kind of food.

Extended data:

Monk, originally from Indian Sanskrit, means "teacher". Monks are honorifics. Only those who are qualified as teachers can be called monks, not everyone can.

For three worlds. Quotient means high. "Monks" are only what Sakyamuni called the world of China and Tibet, but later generations did call them monks, perhaps because after Sakyamuni's nirvana, monks were the best in the world.

The monk named Misha (meaning diligent encouragement and kindness) was born at the age of 20, and was forbidden by a monk to be called a monk (meaning beggar-begging for food). China people misrepresent it as "Derby Kong Qiu, so it is called a monk", which is also a joke). Within five years after being ordained by a monk, he shall not be a tutor; After five years, if you are familiar with the precepts, you can only use what you have learned as a teacher. This is called a model teacher. Sanskrit says Ayaliya leaves, which people recite with teaching. Ten years later, you can be a pro-teacher; Twenty years later, it was called the seat of honor; After 50 years old, they are called the elders of the elderly.

Anyone who becomes a monk must shave his hair, which is called tonsure in Buddhism.

"There are four kinds of monks who live legally and don't eat; If you don't eat human fireworks, you shouldn't live; Eat and drink, live; Law is incompatible with food. You should not live. Don't ask whether it is day or night. You should give up. European gravy pears are just like you. Monks are the same, with joys and sorrows. "The capital holds the record and explains the cloud:" Law is the main business, and food is the subsidiary capital. "If you can't eat, keep it in a filthy body; If there are laws without food, this will eventually become the life of Hui Yu. There is a sacred system, why not consider it? Among the monks, when they went to live in the early Ming Dynasty, there were four sentences, and two went to live. Leave without asking, and you can't leave without food; Ask and go without food; If you live hard and have no food, you should not come to the end of your life; Live happily, have food and law, although you shouldn't go. " (Notes on Currency Issues, Volume 103 18)

References:

Baidu encyclopedia-monk