You need to clean your code up as well. The !doctype is about 30 lines down the page
Also your title
Code:
<title>
arthritis-glucosamine.com
| Arthritis Glucosamine
| Arthritis
| Gout
| Arthritis Treatment
</title>
I do not think that title is going to help you much.
Your description is your domain name. The description should give a description of your site
and you should try to use around 4-8 keywords/keyphrases and around 160 but no more than 200 characters in the description.
Lastly I got a pop under when I visited your site. This is a very quick way of making people leave and never return.