In re: A summary of my comments on proteins.

Though I know little or nothing about science, I am reasonably sure that only animal proteins are complete ones - this does not include milk products.

However vegetarians from affording classes can easily access proper fortified diets through expert advice.

Many people recommend soya and mushrooms for vegetarians. However soya can be problematic for some from a hormonal point of view. Therefore supplements exist 

There is no substitute for expert advice on this.