Questions & Answers about Я ем всё, только не мясо.
Ем is the 1st person singular form of the verb есть meaning to eat.
So:
- есть = to eat
- я ем = I eat
- ты ешь = you eat
- он/она ест = he/she eats
Russian verbs change form depending on the subject, so you usually do not use the infinitive the way English sometimes does in dictionary-style examples.
No. Russian has two different words that look the same in the dictionary:
- есть = to eat
- есть = there is / there are / is
In this sentence, ем clearly comes from есть = to eat.
That is a very common point of confusion for learners.