Some 80 percent of internet users said they went online to research health information in 2004 - roughly the same proportion as in 2002, when 79 percent did, according to a report released this week by Pew, reports MediaPost. However, 51 percent of online consumers last year used the web to research diet or nutrition, compared with 44 percent in 2002 - and 42 percent in 2004 sought information on exercise, versus 36 percent three years ago.