I am a recruiter that sets up interviews and participates in job offers, etc. I think that if someone is overweight and studies (yes, just like for a test)for their interview, dresses for success, and has a positive attitude, there would be no difference in getting a job. Sure on the subconscious level, people tend to view those deemed "more attractive" more positively initially, but the preparation for the interview along with a positive attitude can diminish those statistics drastically. Bottom line, if you are well groomed, knowledgeable about your field, and come across as someone who works well with others, that is ultimately what counts. You can take that to the bank!