Doctors, generally advise pregnant women to avoid non vegetarian food. Reason is, meat ,eggs and other such food likely to make delivery difficult .

Normally gynaecologist s advise pregnant women to avoid red meat since it is fattening and tends to add too much of fat instead concentrate on fish, pulses ,lentils etc for proteins  , also avoid sex during the first three months since chances of miscarriage is maximum during that period..

I don't know about meat items but fish is very much permissible. Among Bengalis, fish is a staple food and it is very much consumed by the pregnant ladies throughout the period.   

What is the need for such advice in the first place? 

If the advice is based on health ground then it is fine but if any religious sentiment or morality attached to it then definitely, it 's no one's business.

Definitely, the advice is based on health Grounds. Because, the advice was given by qualified Doctors. Hence, there is no scope for Advice being given on religious grounds.

Meat is eaten by more than 80% of the world. Why the vegetarians of India have an issue with it and are all the time advising against it. Why can't they mind their own eating business and stop preaching. Do vegetarians not suffer the same type of diseaeses that meat eaters suffer from. It is irritating to suffer such self appointed moralists.

No. Meat eaters are more prone to ailments, may be life threatening ailments. Where as a Vegetarians are less likely to become the victims of life threatening ailments.

It is a widely propagated perception promoted by self appointed vegetarians. Take it or leave it.

I guess now rambabu thinks he is a dietician and a physician as well to speak about meat and its threats, life threatening ailments indeed !!! from where does he get these weird ideas from ? probably his own limited imagination ..

Meat, poultry and sea food are all very very rich in protein and unless vegetarians take special care they lose out on this which anybody can understand ..