I'm honestly terrible with photoshop so I don't really know how to make icons (or what they should look like). I thought about text but I think it wouldnt look right with the text right under it. I highly recommend rubymotion, it's absolutely awesome.

Check out the icons at http://www.glyphish.com. There's a free set, but I think the Pro version is a great deal.

Thanks for the link, the ions look great. Now I need to figure out which icons to use for BMI/BMR/BF/etc haha