No problem! I can't help myself when it comes to references. As it was, I had more scientific articles that I couldn't fit in the video! The science is out there, but it's so hard for people with limited energy to read it all. I hope to make it more accessible via videos.
I'm not sure honestly. It was just a cheap one from Target I think. But any similar water bottle should do. It just needs to have a built in straw within it, so you don't have to lift the bottle all the way up to have a drink.