Those NFL ads are fun, but you should be careful of the foods they sell, study shows

For many people, the advertisements will be a big part of Super Bowl fun this Sunday. But many of them are selling you dangerous levels of sodium, a new study shows.

​ For many people, the advertisements will be a big part of Super Bowl fun this Sunday. But many of them are selling you dangerous levels of sodium, a new study shows. Read More Breaking News, Latest News and Videos | CNN