Cooking from scratch?

Katie Couric was on The Daily Show last night, promoting the new documentary "Fed Up" about sugar causing obesity. She's the narrator, and feels strongly about the subject (80% of  processed foods in the US have added sugars.  There is an estimate that 1/3 of people in the US will have Type 2 Diabetes by 2050).  She said "nobody cooks anymore."  I turned off the TV, thinking that if she is so wrong about that, some of her other facts or opinions might be off.  I realize that fast food/take-out food is commonly consumed, and that many people rely almost exclusive on prepared food - my parents used frozen entrees as the basis for supper almost every day.  Still, in a country where so many people have food allergies or are picky in other ways and fancy cooking is a huge hobby, many of us really do cook almost every day, and don't rely heavily on factory or commercial foods.  How can I look up the percentages?

Related a bit (film and nutrition), the final sentence of a review by Brian Juergens of the new movie "Neighbors" ends "the most horrifying breast-pump incident in cinematic history."  Actually, now that I think about the context of the movie, it's possible that breast milk is not involved.