Proteins are the building blocks of body tissue and provide the body with the energy it requires to grow and develop properly. When protein is digested, it breaks down into amino acids. At least 46 grams & 56 grams of protein is required for women & men every day respectively. Vegetarians need sources for ample protein uptake as well.
Our main sources of proteins are meats, dairy products, fish and eggs. But this in no way means that vegetarians cannot get the required protein intake for the day.
Almost all foods have some protein except for alcohol, oils and processed foods. Actually, there are benefits of not eating meat for protein. For example, it can help you stay away from high saturated fat and cholesterol level that is present in all animal-based protein. Looking at the larger picture, it is also good for the environment and saves you money.