I'll Eat The Soup If I Can Paint My Kitchen

So, I'm sure you've seen the commercial where the guy gets dragged across the kitchen floor and into his chair to demonstrate his reluctance to try low sodium Campbell's soup. Well, can you please explain to me why everything in the ad aside from the soup (kitchen setting, tables, chairs, dishes, the people's clothes etc) is beige or white? Are they representing the excess of sodium in the world? Would regular colors distract from the soup? I don't understand.