This argument is ridiculous. Personally, I think the best way to rate a restaurant is the way your stomach feels the day after. Very few make the cut.
Generally speaking expensive restaurants have very heavy food, which combined with more courses are not stomach friendly. Fast food places may have unhealthier food but the quicker pace and lack of variety generally total less junk. However, if one is very disciplined a good restaurant does offer the possibility of a healthy meal, while with fast food places it’s usually harder.