This is a project made by a friend of mine - she was looking for feedback so I asked her to post it here.
EDIT: I found many other errors in the number entry validation: height: inches don't go more than 9; if I type 9999999999999 into the calories intake, I get funny values in the deficit, etc. let's hope it doesn't have some misplaced ' ;)
That pyramid referral is the best -- the full database is there for download, awesomeness. Thank you!