Does Hinduism prohibit meat eating ?
There are actually very less things as prohibits, commands, mandates etc in Hinduism. So in this case too Hinduism does not prohibit, but it recommends that meat eating could be avoided for spiritual benefits and kindness towards fellow creatures.
Is there a rule about Hindus eating meat ?
Ahimsa means refraining from injuring-physically, mentally or emotionally-anyone or any living creature. The Hindu who wishes to strictly follow the path of non-injury to all creatures naturally adopts a vegetarian diet. As in other matters, Hinduism has very few rigid "do's and don'ts." Rather, its injunctions are called restraints and observances. The ultimate authority for answers to such questions is one's own conscience. Today in America and Europe there are literally millions of vegetarians. This is because they want to live a long time and be healthy. Many feel a certain moral obligation to their own conscience which they wish to fulfill. There are no commandments. Hindu religion gives us the wisdom to make up our own mind on what we put in our body, for it is the only one we have, in this life at least.