Then one of my friends told me about some health videos that were helpful. I just watched this one about the liver and thought it was very informative. It is about 45 minutes I think, but you can watch it in segments if necessary. I think there's a lot of helpful information in it.
My one comment to add is that I don't think vegetarian is the best thing for everyone. Each person is different and for some people vegetarian is not the healthiest option. Of course I always recommend eating natural/organic meats if you do eat meat, not the conventional, toxic meats.
Anyway, I hope this is helpful. There are many other videos by this lady as well. So far I've only seen this one, but I look forward to watching more as she seems to be a good resource for health information.