Yes you can. For a healthy anything you can take a single foodstuff for 1 meal IF you have a decent variety for the rest. Though you should be thinking about expanding the selection. read more
Sure, as long as your total daily intake is healthy, having enough proteins and not forgetting vitamin B12 which is a problem in vegans. read more
I drink soymilk only because its tasty. I aslo drink cow milk but I prefer soymilk because it tastes lighter and not as thick as milk. As a Chinese, I can say that we actually had soy juice as breakfast everyday before cow milk became popular. We call it doujiang which means soy juice. read more