Ask HN: Starting a drink business.

So, HN, I know this is a pretty technical site in terms of programming, entrepreneurship, etc, but it looks like I'm starting a more traditional drink business with my brother. Background info really quickly: I'm 23, he's 20, and we have created a health shot from natural products that is really quite awesome (not going into too much detail here; it's not relevant. All I have to say is it's not an energy drink).

We plan on selling 50 ml bottles (about 2 oz) to local health markets to begin with, and see how things go from there.

What I want to know is this: what do I need to know about US health and food regulation before I get into this? I'm literally going to be preparing and bottling this in my kitchen for a while and selling directly to these local markets when I start out. Is there anything I should I be aware of before I start that would have the power to stop me?

EDIT: Starting out, it looks like I will be using these bottles: http://www.sks-bottle.com/340c/fin14e.html. Good enough, or will I need something better? (in terms of being able to preserve the contents?)