Turkish Baggage Allowance
"The free cabin and checked baggage allowance may vary according to reservation class and departure runway"
In common with other airlines serving the Middle East the luggage allowances are variable and generally more generous than European
carriers. Turkish offer 50kgs luggage allowance Turkey <-> Egypt in economy.
Turkish still isn't the most generous - Saudia offer 46kgs baggage allowance on International flights to Europe in economy.
"Please pay attention that the free baggage allowance is shown on your ticket"
I have 5 tickets from April 2014 RUH/IST/EDI showing 40kgs luggage allowance.