How bad is the SEO on this Page? Can you recommend pointers?

[R]

these are your search terms,

fitness, exercises, fitness exercises, workouts, routines, fat loss exercise, gain weight exercise, weight lifting exercises

I did not see those terms on the page. That means your keywords are not relative to the site. Also, where is the description?? Get rid of all those outbound links on the bottom of the page. If you want a page about muscle mass, name the page muscle mass, and have text that only pertains to what you are talking about. Also on that page use only keywords that can be found in that page. Every page in your site should have different keywords pertaining to the content of each. The SEO is non existant as far as google and I am concerned. You have no page rank. Read up on it a bit and start again. I like the simplicity of the design however. it is nice to look at.

Also, you Homepage has a description but no keywords. Google does know you exist, but will not rank your site. That is not good.