I've been a vegetarian for about 7 years now, and I admit i'm still not that good of one for a variety of reasons--i don't consume nearly as much protein per day as I should. I'm only 19yo so this deficiency probably wouldn't mean hair loss for me, and I still have a full head. Perhaps something else is wrong and you should have a chat with your doctor. Also, you can't expect a change in hair loss to begin being cured in a week--it takes times for hair to grow and such.

I'm not a vegetarian, but I don't like most red meats so I have been experiencing similar problems from time to time. I have to agree with mistherd13, you will probably need to wait longer than a week for improvements, but I do believe that the salmon is a good idea. The turkey probably doesn't make such a difference, but salmon has lots of omega-3 fatty acids which are great for your hair, they should prevent the dry and brittleness. Sorry to depress, but the only other sources of omega-3 fatty acids that I can think of are fish like tuna and mackerel and trout.
I think sometimes they attribute hair loss to a deficiency in b vitamins and zinc. Because of this, recently, I have taken to snacking a lot on almonds, peanuts, walnuts and other kinds of nuts because they have lots of zinc in (which is quite hard to come by otherwise) and b vitamins. Peas, beans and carrots are also good sources of b vitamins.

Hope that helps!

Well I can honestly say I think the proble,m may be deeper rooted than youe diet, I am veggie my self but I dont eat eggs or dairy not for any reason just purley they freak me out and my hair is lush. :)